i^i^li ^1'i ^ TRANSACTIONS -A.:M:EI?.IO-A-]iT ENTOMOLOGICAL SOCIETY. YOL. VL PHILADELPHIA. TEINTED BY THE SOCIETY. 1877. LIST OF PAPERS. Page Crksson, E. T. Xotes on the species belonging to the subfamily Ichneu- monides found in America North of Mexico. - - 129 Edwahds, William H. Catalogue of the Diurnal Lopidoptera of America North of Mexico. ---_---- 1 Horn, George H., M. D. Synopsis of the genera and species of the Staphylinide tribe Tachyporini of the United States. - - - 81 LeConte, John L. 31. D. On certain genera of Staphylinidaa Oxytelini, Piestidae, and Micropeplidae, as represented in the fauna of the United States. 213 McCooK, Rev. Henry C. Mound-making Ants of the xllleglienies, their Architec- ture and Habits. ------- 253 ScuDDER, Samuel H. On the Classification of Butterflies, with special reference to the position of the E([uites or Swallow-tails. - 69 Ti^.A.nsrs.A.0 Tionsrs OF THE AMERICAN ENTOMOLOGICAL SOCIETY. VOLUME VI. Catalogue of the DILK\AL, I.EPIDOPTKRl of America IVorth of* iUexico. BY WILLIAM II. KDWARDS. Since the publication of the Synopsis which completed the first volume of the " liutterflies of North America," in 1872, a lar"e number of new species have been described, belonging to the Nor-th American fiuna, while the position of many given in the Synopsis has been determined by bringing together the types from several collec- tions, ^lany also were included on various information, now regarded as erroneous. And much has been learned, in the last few years, of the phenomena of dimorphism, whereby two or more forms which had been regarded as distinct species have resolved into one. For these reasons, if no other, a new catalogue of species of the Diurnals is required. And indeed, fur many and good reasons, new and reformed catalogues of every class of the Jjcpidoptera of North America are retjuired, and it is intended that this shall be the first of a complete series. In the preparation of the present one T have received large assist- ance from .^Ir. l^intner and .Mr. Henry Edwards, and, iu general, the plan herein adopted, and the changes from the Synopsis, both as to the genera and species, have met their approval. I have also availed myself somewhat of Mr. Scudder's recent lievisions and Lists, so far as regards the species, thougli differing widely from him as to the genera and nomenclature. It will be found that something over twenty species formerly ac- credited to the fauna have been dropped, and this has been done for want of authentication, no modern collector, so far as I have beeu able to leaiii, having taken any of these species within our territory. Several of them, all sub-tropical, were included in the Synopsis from verbal information received by me when I first began to collect butter- TRANS. .VMER. E.NT. SOC. VI. (1) FliBltl AltV, lt>77. Z WM. H. EDWAR'DS. flies. Others were found in Weidemeyer's Catalogue, 18G4, and in works of various authors. Any such species which has not been taken within the United States the last twenty years, during which the whole country has been searched by eager collectors, may be set down as a very rare visitor, and good evidence is needed to prove that it was ever found here. A list of such species will, however, be given, for the satis- faction of any person who prefers to consider them as entitled to recognition. For the same reason, I omit all of Mr. Reakirt's Southern Cali- fornian species which have not been seen by collectors since he gave them a habitat. These were obtained from Mr. Lorquin, the younger, who notoriously mixed his Mexican with Californian and even European insects, uulabelled, whence Mr. Reakirt was led into several admitted errors. It has not been considered necessary to encumber these pages with references to works that are inaccessible to most of the lepidopterists and collectors of the country, and therefore I have given from such works merely enough to accredit the species; but have quoted fully from American authors, or others who have treated especially of Ameri- can butterflies. Students who desire farther and fuller information can readily find it in Kirby's Catalogue, a most valuable and surprisingly accurate work in its references, and which no one who cares to know of the literature of the science should be without. I have also made references to autht)rs who have treated of the preparatory stages, no matter how briefly, or of the habits of either larva or imago, and have indicated this class of information by a special sign. In the general arrangement, while adopting the families ;md sub- families of some ol the later systematists, I adhere mainly to the order of Doubleday and his associates in the " Genera of Diurnal Lepidoptera." I have not seen reasons to induce me to follow these systematists spoken of in their radical changes, whereby the Papiii- onidae are degraded, founded as they avowedly are on partial characters drawn from the imago, and almost regardless of the preparatory stages. A great many systems of arrangement have had their rise and fall within the last half century based on one character or other of the imago, and it is safe to .say that none will be other than temporary which does not regard the egg, and larva and chrysalis, as well as the butterfly. And it will be a very long time before the knowledge of the Lepidoptera is so complete as to permit of any permanent arrangement. Certainly I do not believe the Papilionidae to be the nearest allies DIURNAL LEPIDOPTERA. 3 ot the Ilesperkljie. and through them of the ITetcrocera, and can confidently assort that, in the preparatory stages, these two faiuilios are as unlike as any of the series. And as to the butterflies them- selves they stand at the two poles. Even 3Ir. Bates says of the PapilionidiC, they are ''quite unconnected with the Ilesperida^, no connecting links between the two families being known." (Jl. of Entoni. 18G1, Dec.) In the imago, some Danainaj and Heliconina3 closely resemble species of Papilioninje and of Pierinae, and in any arrangement these four sub-families should stand near each other. But the fact of atrophied fore legs in Danais should no more give it precedence over Papilio than does such atrophy in other orders of insects give pre-eminence to the species subject to this phenomenon, or to the genera and families which contain them. I do not believe that one family of the Diurnals has necessarily been evolved from another, and all from the Heterocera, by successive stages, in a direct line, as is implied in the arrangement I object to, but rather tluit, if such development may have sometimes taken place, in other cases families have radiated from a common progenitor, just as a group of species has done. And here and there resemblances between such families must be expected to occur, just as they do occur between the species, in both cases merely because they had a common origin. The proposition is enunciated by 3ir. Darwin, that '• distinct species present analogous variations, and a variety of one species often assumes some of the characters of an allied species, or reverts to some of the characters of an early progenitor." And what is true of species is just as true of genera and families. Moreover there may be affinities which are so only in appearance, arrived at through - biological necessity," as where the larv;\) of l*ar- nassius protects its chrysalis by a sort of coccoon, after the fashion of certain of the Heterocera, a fact much insisted on by the advocates of the modern arrangement. Now that habit may well have been found uselul in this genus, considering the exposure to which the species are subject, dwelling on lofty nmuntains. treeless, often shrub- less, and storm-i^wept. A u; ked and sus|)ended chrysalis would stand a poor chance of surviving in such a region, and it is well known that the Parnassians alone of the Papilioninac have been able to gain and maintain a foothold in elevated districts. That they have done it is owing to the nece.s.'^ary modification of the habits of the larva), and it is a singular notion that success in such respect should work the degrada- tion of themselves and all their blood relations. 4: WM. n. EDWARDS. I have followed the recomniendation of the Committee of the British Aspociation of 1842, by j;iving the terminations of family and sub- family names in t'dse and iufe^ a practice very generally adopted since that day and both simple and convenient. And I have aimed at presenting the genera, at least as far as Hesperidaj, as nearly as possible as they existed thirty years ago, when Doubleday's great work was published, in which each genus was carefully and elaborately defined. This was before the tendency towards incorporating the whole of Iliibner's bekaunter Schmetterlinge into the nomenclature began to prevail, or creating genera by whole- sale by mere indication of types, without definition, or encroaching on the rights of species by creating vSo-called genera on infinitesimal dilferences. The Rules adopted at Buffalo have in great degree delivered us from these evils. If genera are founded in nature, then nature should be followed, and a compact group like Parnassius, Colias, Callidryas, Argynnis, should receive a genus name. And if sub- divisions be desirable for the sake of convenience, in the genera which have numerous species, they should be divided into sections. 8uch sections whether natural or artificial are not genera. Nevertheless it has been the fashion of late to split up a genus into numerous, co-equal, so-called genera, with no clue in their several names to their relation- ship. If genera are artificial creations, made for convenience, it must be in the last degree improper that they should be multiplied so as to overwhelm the science, and bury it out of sight. I follow the example of Doubleday and Boisduval in this matter. And as a first step in the much needed reform, I strike out the name of Hiibner wherever it is appended to a genus, neither believing Iliibner's coitus to be genera, nor even could they be so held, that they received from Iliibner satisfactory definition. Doubleday intro- duced a few of these coitus names for his own genera, and out of courtesy attached the letters '■ Hiib." to them. His example has finally led to the wholesale displacement of his own name and the names of his associates, and of the many distinguished lepidopterists of the last two generations, by the accrediting a large proportion of the existing genera to Hiibner. I have shown elsewhere (Can. Ent. vol. 8), the injustice of these proceedings, iin 1 refuse to be a party to them. In every case, the genus in this Catalogue is, or is intended to be. credited to the author who first proposed and described it, and courtesy gives place to justice. It remains to speak of the arrangement of the Hesperidas. Mr. DIURNAL LEPIDOPTERA. O Sciidder, several years ago. furnislied uio the names lie adopted in his revision of this family, — the only family, by the way, connected with our fauna, which needed revision, — sending them from Europe, and I received his list bArely in time to include it in the closing pages of the Synopsis and my volume, with no interval for examination or ex])lanation. To this day it stands a bare list of names, without authority, the groups indicated never having received definition. It was at unce found objec- tionable on account of the excessive restriction of the groups called genera, there being no less than thirty-nine to one hundred and six species. Prof. Zeller, (Knt. Zeit. Stet. 1874), might well ask, "what would become of us if all the Hesperians of the world, and all the Lepidoptera also, were thus split up into such genera. The least result would be that the difficulty of determining the species would resolve itself into the greater one of determining the genus." Some few of these groups would doubtless stand as genera, if defined, but in most cases, there is no reason why several should not be embraced in a single genus. That I gave them currency and endorsement through the Synopsis has been a matter for regret. Inasmuch as the Hesperida3 undoubtedly needed revision, Dr. Otto Speycr kindly consented, at the recjuest of Mr. Lintner, to undertake the tusk. It is believed that the arrangement proposed by him will be satisfactory. But it must not be forgotten that any present arrange- ment of this family, much more for one geographical section of it, is only provisional. Of this Dr Speyer himself writes: "A systematic treatment of the Hesporid;^ is a very difficult task, and, according to my opinion, can only be accomplished with reference to the whole known family, in all parts of the world, of which the American Hes- perians form only a small fragment. But as there exists at present no general system for this family answering all demands, and as there is not likely to be one very soon, local specialists are obliged to confine themselves, whether they will or not, to their own species. Even fjr the European fauna, we have been obliged to content ourselves with a highly deficient provisional grouping of the Hesperians, so imperfect indeed, that I have not been able yet to accept these .so-called genera, and in my own collection, I still bring everything under the name Hesperia, — a procedure allowable, under the circumstances, for the European fauna, poor in species, but not suitable for the richer Ameri- can fauna." W. H. Edw.vkds. Coalbargh^ W Va. Feb. 1877. •WM. H. EDWARDS. NAMES OF AUTHORS AND WORKS QUOTED Al^D ABBREVIATIONS USED. Agassiz, L. — Lake Superior, 1850. Am. Ent. — American Entomologist, St. Louis, 1869-70. Am. Nat. — American Naturalist. Ann. N. Y. Lyc. N. Hist. — Annals of the New York Lyceum of Natural History. Ann. Soc. Ent. Fu. — Annals de la Society Entomologique de France. Bates, H. W. Behr, Dr. Hermann. Betoune, Rev. C. J. Blanch. — Blanchard. Bd. — Dr. Boisduval, Icones historique des Lepidopteres, 1833. Species General des Lepidopteres I, 1336. Lepidopteres de la Californie, 1869. Bd.-Lec. — Boisduval and Leconte. Lepidopteres de I'Amerique septentrionale, 1833. Bl'l. Bcf. Soc. N. Sci. — Bulletin of the Buffalo Society of Natural Sciences. Butler, A. G. — Lepidoptera Exotica, 1869-74. Catalogue of the Satyridte in the British Museum, 1S6S. Can. Ent. — Canadian Entomologist. Can. Nat. — Canadian Naturalist. Cram. — Cramer, Papillons Exotiques, 1779-82. Curtis. — Appendix to Ross' Arctic Expedition, 1835. Dalm. — Dal man. De Sagra. — Natural History of Cuba. D'Urban. Dodge, G. M. DouB. — Doubleday, Edw. Drurv. — Illustrations of Exotic Entomology, 1770-82. H. Edw. — Edwards Henry. 'Pacific Coast Lepidoptera, 1875-77. Edw.— Edwards, W. II. Butterflies of North America, Vol. I, 1868-72. Vol. II, 1874. En. An. Mus. St. PETERSBURG.-pEnumeratio Corporum Animalium Musei Im- persalis Aeademise Scientiarum Petropolitanse, Part I, 1855-63. Enc. Meth. — Enclo|)edie Mcthodique. Entom. — The Entomologist, London. Ent. Mo. Mag. — Entomologist's Monthly Magazine, London. Esp. — Esper, Die Europaischen Schmetterlinge, 1777-94. F. — Fabricius. Systema Entomologire, 1775. Species Inseetorum II, 1781. Mantissa Ins'ectorum II, 1787. Entoinologia Systematica III, 1793. DIURNAL LEPIDOPTERA. '7 Felp. — Felder, Dr. C. Reise der Xovara, 1867. Fiscn. — Fischer. Entomographie de la Russie, 1823-24. FiSHEB. Fitch, Dr. Asa. Freyeb. — Neuere Beitrage zur Schmetterlingskunde, 1831-58. Ge.v. Di. Lep. — Genera of Diurnal Lepidoptcra. Doubleday, Westwood and Ilewitson. 1846-52. Geyer. — Continuation of Hiibner's Exotischer Schinetterlinge. GoDT. — Godart. Encyclopedic Methodique, IX. GiiAY, Dr. Edw. Grote, a. R. Gr.-Eob. — Grote and Robinson. GuERiK. — Iconographie de Regne Animal, 1844. IIarr. — Harris, Dr. T. W. Insects Injurious to Vegetation, 2d. ed., 1862. Hkrr.-Schaef. — Ilerrick. Schaeffer. Hew.— Ilewitson, W. C. Exotic Butterflies. Illustrations of LycKuidse. Hist. Nat. de Cuba. — Memorias sobre la Ilistoria Natural de la Isla de Cuba, Poey, I, 1851. Hub. — Hubner. Sammlung Europaischer Schmetterlinge, 1793-1827. 8ammlung Exotischer Schmetterlinge, 1816-24. Zutraege zur Sammlung Exotischer Schmetterlinge, 1818-25. Humph.-West. — Humphreys and Westwood. British Butterflies, 1848. KiBDY, Rev. W; — Fauna Boreali-Americana IV, 1837. KiRTLAND, Dr. C. KoLL. — Kollar. Latr. — Latreille. Leach, Dr. W. E. Led.— Lederer. Lef. — Lefebore, A. L. — Linnajus. Museum Ludovicse Ulricas Reginse, 1764. Systema Naturse II, 1767. Mantissa I. LiNT.v. — Lintner, J. A. Entomological Contributions. Lccas. Mayxard, C. J. Mead, T. L. — Report upon Geographical and Geological Explorations, etc., in charge of Lt. G. M. Wheeler, Vol. V. Zoology. Diurnal Lepidoptera. Men. — Menetries, E. Mem. Bost. Soc. N. Hist. — Memoirs of the Boston Society of Natural History. Mo. Est. Rep. — Missouri Entomological Reports. MoBR. — Morris, Rev. J. G. Synopsis of the described Lepidoptera of North America, 1862. Ot'HS. — Ochsheimer. Die Schmetterlinge von Europa, 1807-16. Pack. Gui.— Packard, Dr. A. S. Jr. A Guide to the Study of Insects, 1869. Parker, Rev. II. W. Poey, Prof. F. — Ceuturie Lepidopteres de Pile de Cuba, 1832. Plt.nam, F. W. Psyche. — Organ of the Cambridge Entomological Club I, 1876. 8 WM. II. EDWARDS. Pr. Am. Ass. Adv. Sc. — Proceedings of the American Association for the Ad- vancement of Science. Pr. E. Sor. Ph. — Proceedings of the Entomological Society of Philadelphia. Pr. Cal. Ac. N. Sci. — Proceedings of the California Academy of Natural Sciences. Pr. Bost. Soc. N. Hist. — Proceedings of the Boston Society of Natural History. Pr. Davenport Ac. N. Sci. — Proceedings of the Davenport (Iowa), Academy of Natural Sciences I. Pr. Ess. Ins. — Proceedings of the Essex Institute, Salem. Ramu. — Ram bur. Reak.— Reakirt, T. Rbg. Anim. de Cuv. — Regne Animal de Cuvier. Rkv. Zool. — Revue Zoologique, Paris. Ridings, James. Rep. IIavd. Exp. — Report on the Geological Survey of Montana, etc., Hayden. Riley, C. V. — Missouri Entomological Reports. Saund. — Saunders, W, Say, Thos. — American Entomology, 1824-28. SCIIRANK. ScHNEiD. — Schneider, D. H. ScDD.— Seudder, S. H. A Systematic Revision of some of the American Butter- flies, 1872. Sill. Jl. — Silliman's American Journal of Science and Arts. S.M.-AiiB. — Smith and Abbot. Insects of Georgia, 1797. SoMji. — Sommer. * Speyer, Dr. Adolf. Stoll. — Supplementband zu Papillons Exotiques, (Cramer), 1787-96. Streck. — Strecker, II. Lepidoptera, 1872. SWAINSON, W. Thunb. — Thunberg. Dissertatio Insecta Suecica II, 1791. Tr. A. E. Soc. — Transactions of the American Entomological Society, Tr. Chic. Ac. N. Soi. — Transactions of the Chicago Academy of Natural Sciences. Tr. Ent. Soc. LoND. — Transactions of the Entomological Society, London. Tb. N. Y. St. Ag. Soc. — Transactions of the New York State Agricultural Society. VoN Prunn. — Von Prunner. Lepidoptera Pedemontana, 1793. Wai.sh, B. D. "VVestwood, Prof. J. 0. Wnrr.NEY, C. P. Wien. Ent. Monats. — Wiener Entomologische Monatschrift. Signs used. — "S , male. 9 , female. :^c, mention of preparatory stages. X, species unknown to me, and perhaps not properly classified. DIURNAL LEPIDOPTERA. CATALOGUE. PAPILIONID^. P A PI LION IN. E. PAPII.IO, L. 1. Ajax, L. dim. var. Walsiiit, Edw. But. N. A. 1, 1, pi. 1, >|<. MarceUuit, Cram. sub.-var. Ahhotli, Edw. 1. c. pi. 1, fig. G. Ajax, Sm.-Abb. pi. 4, >fc. dim. var. Telamonides, Fold. — Edw. 1. c. 2, pi. 2, >|<:. Ajax, 13d.-Lec. pi. 1. dim. var. Marcellus, Bd.-Lec. 8, pi. 2.' Edw. 1. c. 3, pi. 8, sic. Ajax, Esper. Iloh. — Pennsylvania to Texas; Mississippi Valley. 2. Sinon, F.— Bd. Sp. Gen. 1, 2G0. Bd.-Lec. 11, pi. :}. Morr. 9. Frotcsilaus, Drury. IlaJi. — Florida, (occasional) ; Cuba. 3. Philenor, L.— Sm.-Abb. pi. 3, 5|c. Say, 1, pi. 1. Bd. Sp. Gen. 1, 324. Bd.-Loc. 29, pi. 11, :+;. Morr. G. Kiley, 2d. Mo. Ent. Rep. 110, ;+;. Astinous, Cram. Hah. — Atlantic to Pacific; Canada to Gulf of 3Iexico. 4. Villiersii, F.d.-Lec. 3G, pi. 14. Morr. 12. Hal). — Florida, (occasional) ; Cuba. 5. Machaon, L. — Morr. 12. var. Aliaska, Scud. Pr. Bost. Soc. N. Hist. 12, 45. Hah. — British America ; Alaska. G. Hippocrates, Feld. A'erh. Zool. Bot. Gcs. 14, 314. var. Oregonia, Edw. Tr. A. E. Soc. 5, 208. Hah. — Oregon ; Columbia River, (coll. H. Edwards). TRASS. AMEU. ENT. SOC. VI. (2) FEBRUAUV, 1877. 10 WM. H. EDWARDS. 7. Zolicaon, Bd. Ann. Soc. Ent. Fr. 2, 10, 281. Morr. 4. Edw. But. N. A. 2, pi. (), >lc. H. Edw. Pr. Cal. Ac. N. Sci. 5, 103, 5|;. Streck. pi. G, fig. 3, 9 . Hah. — Oregon to Arizona; Montana; Colorado. 8. Indra, Ileak. Pr. E. Soc. Ph. 6, 123. Streck. pi. 2, fig. 1, S . Putnam, Proc. Davenport Ac. N. Sci. 1, pi. 35, 9 . Hah. — Colorado; Nevada. 9. Pergamus, II. Edw. Pr. Cal. Ac. N. Sci. 5, 423. Hah. — Southern California. 10. Bairdii, Edw. Pr. E. Soc. Ph. 6, 200. Mead, Hep. Wheeler Exp. 5, 740. Hah. — Arizona. 11. Brevicauda, Saund. in Pack. Guide, 245. Edw. But. N. A. 2, pi. 8,*. Anticostiensia, Streck. pi. 2, fig. 2, 9 • Hah. — Auticosti ; Newfoundland ; Quebec. 12. Asterias, F.— Bd. Sp. Gen. 1, 332. Bd.-Lec. 14, pi. 4, *. Morr. 5. Harr. 263, pi. 4, :^<. Lintn. Pr. E. Soc. Ph._3, 51, *. Troihis, Sm.-Abb. pi. 1. Hab. — Atlantic to Pacific; Canada to Gulf of Mexico; xVrizuna. var. AsTEROiDES, Beak. Pr. Ac. N. Sci. Ph. 18G6, 43. Streck. pi. 6, fig. 4, 9 . Hab. — Southern States ; Arizona; occasional in Northern States. var. Calverleyi, Grote, Pr. E. Soc. Ph. 2, 441, pi. 10, I . Edw. But. N. A. 2, pi. 11, -S 9v Hab. — Occasional on Long Island, (coll. Calverley), and Florida, (coll. Mead). 13. Americus, Koll. Sadalas, Lucas, Rev. Zool. 1852, 133, pi. 10. Hab. — Southern California; Arizona, (Wheeler Exp.). 14. Troilus, L.— Bd. Sp. Gen. 1, 334. Bd.-Lec. 26, pi. 10, *. Morr. 5. Harr. 266, :^. Saund. Can. Ent. 1, 73, >^. lUoneus, Sm.-Abb. pi. 2. Hah. — Atlantic States; Mississippi Valley. DIURNAL LEPIDOPTERA. 11 15. Eurymedon, Bd. Ann. Soc. Ent. Fr. 2, 10, 2S0. Morr. 4. Edw. But. N. A. 2, 1, pi. 1, :^c. H. Edw. Pr. Cal. Ac. N. Sci. 5, 1G4, :^. Strcck. pi. 4, fig. 1, % . Hah. — California to British Columbia; Arizona to Moutaua. 16. Rutulus, Bd. Ann. Soc. Ent. Fr. 2, 10, 279. Morr. 3. II. Edw. 1. c. 5, 1G5, ifc. iMead, Bep. Wheeler Exp. 5,741. Hall. — Pacific States; Bocky Mountains. 17. Turnus, E.— Say, pi. 40. Bd. Sp. Gen. 1, 338. Bd.-Lec. 19, pi. G, 7, *. Morr. 2. llarr. 2G8, fig. 97, 98, *. Saund. Can. Ent. 1, 74; ibid, 6, 2, ^. Lintn. Pr. E. Soc. Phila. 3, 50. Edw. But. N. A. 2, pi. 3, 4, 5|c. Hfc. Liutn. Ent. Coiit. 1, 28, >|c. Bethune, Can. Ent. 5. 37, i^. Cruci/erarum, Bd. Casta, Kirby, Faun. Bor. Am. 4, pi. 3, fig. 1. Iberidis, Bd. Hab. — Northern States ; Rocky Mountains ; New Mexico j Cali- fornia; British America; Canada; Nova Scotia. 37. Virginiensis, Edw. Tr. A. E. Soc. 3, 13; id. But. N. A. 1, 32, pi. '.>. Ilah. — West Virginia; occasional in New York and Canada. 38. Napi, L. dim. var. Pallida, Scud. Pr. Bost. Soc. N. Hist. 3, 183. Casforia, Reak. N^asturtii, Bd. Napi, Streck. pi. 8, fig. 4, 5. dim. var. NAPiE^E, Esper. / Veiiosa, Scud. 1. c. 8, 182. Frifjida, Scud. 1. c. 8, 181. Xapi, Streck. pi. 8, fig. 2, 3. Ilab. — California to British Columbia and Alaska ; Labrador. dim. var. Bryoni.t^, Ochs. Ilubhi, Edw. (arctic form), Tr. A. E. Soc. 2, 370. Ilab. — Kudiak. 14 WM. H. EDWARDS. 30. Rapse, L.— Riley, 2d. Mo. Ent. Rep. 108, ^. dim. var. Marginalis, Scud. Pr. Bost. Soc. N. Hist. 8, 182 Rapse, Streck. pi. 8, fig. 6. diui. var. Yreka, Reak. Proe. Ac. N.^ Sci. Ph. 186G, 32. Resedae, Bd. Rapse, Streck. pi. 8, fig. 7. var. Nov.-Angli^, Scud. Can. Eut. 4, 79. Streck. pi. 8, fig. 8. Hah. — United States; British Columbia; Canada; Nova Scotia. BrATIl.VI.IS, Bd. 40. lole, Bd. Sp. Gen. 1, 589. Morr. 12. Mead, Rep. Wheeler PLxp. 5,747. var. Irene, Fitch, Tr. N. Y. St. Ag. Soc. 1856, 485. Hah. — Missouri to California ; New Mexico; Arizona. ANTIIOCIIARIS, Bd. 41. Lanceolata, Bd. Ann. Soc. Ent. Fr. 2, 10, 284. Morr. 21. Streck. pi. G, fig. 5. Edwardsii. Behr. Hah. — California. 42. Creusa, T)oub. Gen. Di. Lep. pi. 7. Hijantis, Echv. Tr. A. E. Soc. 3, 205. Huh. — Colorado to California; Rocky Mountains. 43. Olympia, Edw. 1. c. 3, 260 ; id. But. N. A. 2, pi. 1 of Anth. Huh. — West Virginia ; Missouri; Kansas; Texas. 44. Ausonides, Bd. Lep. de la Cal. 40. Edw. But. N. A. 2, pi. 1 of Anth. >!<;; id. Pr. E. Soc. Ph. 2, 81. Mead, Rep. Wheeler Exp. 5, 747. Huh. — Colorado to California; Piocky Mountains. 45. Cethura, Feld. Reise Nov. 2, 182, pi. 25. Cuopcra, Behr.— Edw. But. N. A. 1, 36, pi. 10. Angelina, Bd. Hah. — Southern California. 46. Sara, Bd. Ann. Soc. Ent. Fr. 2, 10, 285. Morr. 21. Edw. But. N. A. 1, 37, pi. 11. Hah. — California. DIURNAL LEPIDOPTERA. 15 47. Reakirtii, Edw. Tr. A. E. Soc. 2, 369; id. But. N. A. 1, 35, pi. 10. Ilab. — California. 48. Julia, Edw. Tr. A. E. Soc. 4;g1. Streck. pi. G, fig. 6, 7. Mead, Rep. Wheeler Exp. ^, 748. Hah. — Colorado; New^Mexico; Arizona. 40. Genutia, Bd. 8p. Gen. 1, 5G."). Morr. 20. ILib. — New York to Virginia; Western States; Texas. CAI.I.IDRYAS, Bd. 50. Eubule, L.— Sm.-Abb. pi. 5, ^. Bd. Sp. Gen. 1, 613. Morr. 25. Bd.-].ec. 74, pi. 24. Butler, Lep. Exot. 58, pi. 22. ILih. — Southern States; occasional in Mississippi Valley; Ohio; Arizona ; West Virginia and Long Island. 51. Sennae, L.— Butler, 1. c. 59, pi. 23. % MarceUina, Cram. • $ Eubuh, Cram, var. 9 Orhis^ Boey, Cent. Lep. Cuba, pi. Ilah. — Florida; Texas; Kansas; Nebraska, occasional; (coll. Dodge). 52. Agarithe, Bd. Sp. Gen. 1, 623. Butler, 1. c. 121, pi. 45. JLil>. — Texas; (auct. But!.). 53. Philea, L.— Bd. Sp. Gen. 1, G19. Butler, 1. c. 92, pi. 35. JIab. — Texas, occasional; also Illinois, (Am. Ent. 2, 340). GOXEPTERYX, Leach. 54. Lyside, Godt.— Bd. Sp. Gen. 1, 603. Morr. 24. Hub — Texas. COL,IAN, F. Group I. 55. Eurydice, Bd. Ann. Soc. Ent. Fr. 3, 1855, .32. Edw. But. X. A. 1, 51, pi. 16. H. Edw. Proc. Cal. Ac. N. Sci. v. 6, *. Wusnesenski, Men. — Morr. 32. $ Rhamrn\ Bd. Ilab. — California; Oregon; Arizona. 56. Caesonia, Stoll.— Bd. Spec. Gen. 1, 635. Morr. 27. Bd.-Lec. 67, pi. 22. Hub. — Southern States; Miss. Valley; Kansas; Texas; Ariz. Ki "NVM. II. EDWARDI^. Group II. 57. Meadii, Edw. Tr. A. E. Soc. 3, 2G7 ; id. But. N. A. 1. 58, pi. 19. Mead, Rep. Wheeler Exp. 5, 750. Uab. — Colorado; Montana; New 31exico. Group III. 58. Hecla, Lef. Ann. Soc. Ent. Fr. 5, 38-4. Ilab. — Greenland; Disco Island. 59. Boothii, Curtis, App. Ross Exp. 65, pi. A, fig. 3—5. var. C'lionc, Ross, 1. c. fig. 5, 6. Hah. — Arctic America. GO. Eurytheme, Rd. Ann. Soc. Ent. Fr. 2, 10, 286. Morr. 29. Edw. But. N. A. 1, 43, pi. 14. H. Edw. Proc. Cal. Ac. N. Sci. 5, 162, >1<. Mead, Hep. Wheeler Exp. 5, 748. Amphidusa, Bd. Eduaci, var. Cali/ornica, Men. ITah. — Southern and AVestern States to the Pacific; occasional in Middle States. Ontario and Quebec. 61. Keewaydin, Edw. But. N. A. 1, 47, pi. 15. var. Ariadne, Edw. Tr. A. E. Soc. 3, 12. Hah. — Southern, Western States to Pacific. 62. Christina, Edw. Pr. E. Soc. Ph. 2, 79; id. But. N. A. 1, 4i, pi. 13. Ilah. — British America, Great Slave Lake; Athabasca. 63. Astraea, Edw. Tr. A. E. Soc. 4, 61. Hah. — Montana. Group IV. 64. Eriphyle, Edw. Tr. A. E. Soc. 5, 202. Hah. — British Columbia. 65. Philodice, Godt.— Bd.-Lec. 64, pi. 21. Morr. 29. Harr. 272, figs. 100—102, *. Saund. Can. Ent. 1, 54, ^. Riley, 2d. Ag. Rep. Mo. 116, 3|<. Edw. But. N. A. 2, pi. 2, 3 of Colias, >^. var. Autlij/aJe, Hiib. Hah. — Ihiited States east of Rocky Mountains; British America; Canada; Xova Scotia. 66. Chrysomelas, IT. Edw. Pr. Cal. Ac. N. Sci. v. 6. Hah. — Calil'urnia. DIURNAL LEPIDOPTERA. 17 67. Occidentalis, Scud. Vr. Bost. Soc. N. Hist. 9, 109. Edw. But. N. A. 1, 55, pi. 18. I/(ib. — British America; Slave lliver; Caribeo. 6S. Interior, Scud. 1. c. 9, 108. SoUv|c. Morr. 33. Hah. — Pennsylvania to Gulf; Mississippi Valley; Arizona. 81. Proterpia, F.— Bd. Sp. Gen. 1, 654. Morr. 35. Ilah. — Texas. 82. Gundlachia, Poey, Hist. Nat. de Cuba, 1, 246, pi. 24. Prote7'j)ki, var. A. Bd. Sp. Gen. 1, 655. Ilah. — Texas, (coll. Boll.). 83. Westwoodi, Bd. Sp. Gen. 1, 666. Ilah. — Texas, (coll. Mead). 84. Mexicana, Bd. Sp. Gen. 1, 655, pi. 3. Morr. 36. Ilab. — Texas to Arizona; California; occasional in Kansas and Nebraska, (coll. Bodge). 85. Lisa, Bd. Sp. Gen. 1, 661. Bd.-Lec. 53, pi. 19, *. Morr. 34. Ilah. — Rhode Island to Gulf of Mexico; Texas; Western States; Kansas. 86. Delia, Cram.— Bd. Sp. Gen. 1, 663. Bd.-Lec. 49, pi. 18, jjc. Morr. 34. /i.-cZ>.— Gulf States. 87. Jucunda, Bd. Sp. Gen. 1, 665. Bd.-Lec. 52, pi. 19. Morr. 35. Ilah.— Gu\r States. NYMPHALIDiE. HELICONIN.^. IIET^ICOIVIA, Latr. 88. Charitonia, L.— Bd.-Lec. 140, pi. 41. Morr. 39. Ilah. — -Florida; Georgia; South Carolioa, (coast, sea islands), DIlJRNAL LEPIDOPTERA. 19 PANAIN.^. DAXAI!t$, Latr. 89. Archippus, F.— Sin.-Abb. pi. G, >|c. Morr. 38. Bd.-Lec. 137, pi. -10, :^c. Ilarr. 280, >^. Saund. Can. Ent. 5, 4, i^. Ri- ley, 3rd. Mo. P]Dt. Eep. 143, *. Edw. Can. Ent. 8, 119,*. Scud. Psyche, 1, 81, *. Plexipjms, Say, 3, pi. 54. Hab. — United States; British America j Canada; Nova Scotia. 90. Berenice, Cram. — Bd.-Lec. 134, pi. 39, 5^;. Morr. 37. Gili'ppua, Sm.-Abb. pi. 7, j|<. Jlah. — Southern States; Colorado; Arizona. 91. Strigosa, Bates, Ent. Mo. Mag. 1, 32. Hab. — Texas. NYMPHALIN.E. COL./ENIS, Doub. 92. Julia, F. Alciojtea, Cram. 3, pi. 215, fig. A. F. G. Hub. — Texas, occasional; (coll. Belfrage). 93. Delila, F. CifleMc, Cram. 3, pi. 215, fig. D. E. Hab. — Texas, occasional ; (coll. Belfrage). AGRArL.IS, Blanch. 94. Vanillae, L.— Bd.-Lec. 143, pi. 42, 5|c. Morr. 40. Fassijlorap, Sm.-Abb. pi. 12. Hab. — Southern States; California; Arizona; occasional in West Virginia. ARGYNNIS, F. Group I. 95. Diana, Cram.— Say, 1, pi. 17, S . Edw. Pr. E. Soc. Ph. 3, 431, 9 ; id. But. N. A. 1, 61, pi. 20; id. 1. c. 2, pi. 7 of Arg^n. :+:; id. Can. Ent. G, 121, *. Hub. — West Virginia to Georgia ; Kentucky; Arkansas. 96. Nokomis, Edw. Pr. Ac. N. Sc. Ph. 1862, 221; id. But. N. A. ], 71, pi. 23. Mead, Hep. Wheeler Exp. 5, 751, pi. 35. Hab. — Arizona. 20 WM. II. EDWARDS. 97. Leto, Behr. Pr. Cal. Ac. N. Sc. 2, 173. Edw. But. N. A. 1, 83, pi. 29. JIah. — California; Oregon. 98. Idalia, Drury.— Bd.-Lec. 147, pi. 43. Morr. 41. Ilarr. 285, fig. 110. Hah. — Massachusetts to Nebraska; Arkansas. var. AsnTAROTH, Fisher, Pr. Ac. N. Sc. Ph. 1858, 179, pi. 2; id. 1. c. 1859, 352. Morr. 47. Hah. — New Jersey. 99. Nitocris, Edw. Tr. A. E. Soc. 5, 15. Mead, Rep. Wheeler Exp. 5, 751. Hal). — Arizona. 100. Cybele, F.— Edw. But. N. A. 1, 65, pi. 21 ; id. Can. Ent. 6, 121, ^. Saund. 1. c. 4, 121, 5f;. Hah. — Atlantic and Western States to Kansas; Nebraska; Canada. 101. Carpenterii, Edw. Tr. A. E. Soc. 5, 204. Hah. — Arizona. 102. Aphrodite, F.— Edw. But. N. A. 1, 69, pi. 22; id. Can. Ent. 0, 121, *. Harr. 286, fig. Ill, 9 . Hah. — Northern and Middle States; Kansas; Nebraska; Canada; Nova Scotia. 103. Alcestis, Edw. 1. c. 5, 289. Hah. — Illinois; Iowa; Colorado. 104. Atlantis, Edw. Pr. Ac. N. Sci. Ph. 1862, 54; id. But. N. A. 1, 73, pi. 24. Pack. Guide, 252, >(c. Edw. Can. Ent. 9, Feb. 1877, >|c. Mead, Rep. Wheeler Exp. 5, 754. Hah. — New England; New York; Iowa; Colorado; British America, Columbia to Nova Scotia. 105. Columbia, IT. Edw. Pr. Cal. Ac. N. Sci. 6, 1877. Hah. — British Columbia. 1<»6. Nausicaa, Edw. Tr. A. E. Soc. 5, 104. Mead, \. c. 5, 752. Hah. — Arizona. 107. Bremnerii, Edw. 1. c. 4, 63; id. But. N. A. 2, pi. 4 of Argyn. Hah. — Oregon; British Columbia ; A'ancouver's Island ; Mon- tana, (auct. Scud.). DIURNAL LEriDOPTERA. 21 lOS. Behrensii, Edw. 1. c. 2, 870; id. But. N. A. 1, 87, pi. 31. J[(ih. — California, Mendocino. 100. Bischoffii, Kdw. 1. c. 3, 189; id. But. N. \. 2, pi. 3 of Argyn. yy-^A.— Alaska. 110. Opis, Kdw. 1. c. 5, 10.-^; id. But. N. A. 2, pi. 3 of Argyn. Halt. — Britisli ('olumbia, Bald ^lountaiu. 111. Rhodope, Edw. 1. c. 5, 13; id. But. X. A. 2, pi. 6 of Argyn. Jlnb. — British Columbia. 112. Halcyone, PMw. But. N. A. 1, 81, pi. 28. Mead, 1. c. 5, 754. Jlnh. — Colorado; Wyoming. 113. Coronis, Behr. Pr. Cal. Ac. N. Sci. 2, 173, " No. 2." Edw. Pr. E. Soc. Ph. P,, 435. Jnha, Bd. Ihib. — California. 114. Callippe, Bd. Ann. Soe. Ent. Fr. 2, 10, 302. Morr. 4G. Edw. But. N. A. 1, 75, pi. 25. Ilah. — California. 115. Liliana, H. Edw. Pr. Cal. Ac. N. Sci. 6, Dec. 1876. lluJ). — •California. lir,. Nevadensis, Edw. Tr. A. E. Soc. 3, 14; id. But. N. A. 1, 91, pi. 33. Iliih. — Nevada; Utah; Montana; British America, Bocky Mountains. 117. Edwardsii, licak. Pr. E. Soc. Ph. (5, 137. Edw. But. N. A. 1, 85. pi. 30. Mead, 1. c. 5, 754. ]]^. Hab. — California; Colorado; New Mexico; Montana. 149. Quino, Behr. 1. c. 3, 90. JIab. — California, Mendocino. 150. Editha, Bd. Ann. Soc. Ent. Fr. 2, 10, 304. Morr. 51 . H. Edw. Proc. Cal. Ac. N. Sci. 5, 167. I fab. — California. 151. Helvia, Scud. Pr. Bost. Soc. N. Hist. 12, 43. Jlab. — Alaska. 152. Sterope, Edw. Tr. A. E. Soc. 3, 190. Hub. — Oreiiou. DIURNAL LEPIDOPTERA. 25 Group II. 153. Palla, Bd. Ann. Soc. Eut. Fr. 2, 10, 305. Morr. 52. Belir. Pr. Cal. Acad. N. Sci. 3, 88. H. Edw. id. 5, 1(j7, *■ var. Helcita, Bd. Lep. de la Cal. 55. Hah. — California; Nevada. 154. Hoffmanni, Bclir. 1. c. 3, 89. var. ^VII^rNKYII, Iklir. 1. c. 3, 88. Hah. — California; Nevada. 155. Gabbii, Eehr. 1. c. 3, 89. tSonorx, Bd. Hah. — Southern California. 156. Acastus, Edw. Tr. A. E. Soc. 5, 16. Mead, Rep. Wheeler Exp. 5, 761. Hah. — Nevada ; Utah ; ^Montana. Group III. 157. Leanira, Bd. Lep. de la Cal. 57. Behr. Pr. Cal. Acad. N. Sci. 3, 91. Mead, 1. c. 5, pi. 37. Hah. — California ; Arizona, var. Ohliterata, H. Edw. Pr. Cal. Ac. N. Sci. 6, Dec. 1876. Hah. — California. 158. Thekla, Edw. Tr. A. E. Soc. 3, 191. Hah. — Southern California; Arizona. 159. Minuta, Edw. Pr. Ac. N. Sc. Ph. 1861, 101. Mead, 1. c. 5, pi. 36. Arachne, Edw. Hah. — Colorado; Arizona; New Mexico ; Texas. PIIYCIODES, Doub. Group I. 160. Harrisii, Scud. Pr. Ess. Ins. 3, 167. JIah. — New England; New York ; Canada. 161. Nycteis, Doub. Gen. Di. Lep. pi. 23. Riley, Pr. Am. Ass. Adv. Sc. 1874, 108, ^. Lintn. Ent. Cont. 1, 26, jjc. Edw. Can. Ent. 5, 224, j|<:. Mead, Rep. Wheeler Exp. 5, 762. Jsmeria, Harr. Ocnone, Scud. HarrisU, Saund. Can. Eut. 4, 161, ^. Edw. id. 2, 163. Hah. — New England to Colorado; Montana; Texas; Canada. TRANS. AMEIi. ENT. SOC. VI. (4) FEBRUARY, 1877. 26 WM. H. EDWARDS. 1G2. Carlota, Reak. Pr. E. Soc. Ph. 6, 141. Mead, 1. c. 5, 7G2. Ilab. — Southern and Western States ; Rocky Mountains ; occasional in West Virginia. Group II. 1G3. Vesta, Edw. Tr. A. E. Soc. 2, 371. Ilah. — Texas. 164. Phaon, Edw. Pr. E. Soc. Ph. 2, 505. Hab. — Gulf States; Texas; Kansas, occasional ; (coll. Snow.). 165. Tharos, Drury. dim. var. Marcia, Edw. Tr. A. E. Soc. 2, 207; id. Can. Eut. 9,1,*. dim. var. Morpheus, F. — Drury, 1, pi. 21, 9 . Gocyta, Cram. 2, pi. 101, fig. A. B. S . Tharos, Bd.-Lec. 170, pi. 47. Mead, Can. Ent. 7, 161, *. Pharos, Harr. 289, fig. 116, 117. aberr. Packardii, Saund. in Pack. Gruide, 256. Ilah. — United States excluding Pacific States; New Mexico; British America to Pacific ; Southern Labrador ; Anticosti ; Nova Scotia. 166. Batesii, Beak. Pr. E. Soc. Ph. 5, 226. Ifab. — Virginia to New York. 167. Pratensis, Behr. Pr. Cal. Ac. N. Sci. 3, 86. 9 Campestris, Behr. 1. c. 3, 86. Pidchella, Bd. Ilab. — California; Oregon. 168. Camillus, Edw. Tr. A. E. Soc. 3, 268. 9 Emissa, Edw. 1. c. 3, 269. Mead, Rep. Wheeler Exp. 5, 764. Pallida., Edw. Mata, Reak.— Streck. pi. 8, fig. 11. Mead, 1. c. 5, 763. Ilab. — Colorado ; Rocky Mountains ; Montana ; Texas ; Kansas. 169. Orseis, Edw. Tr. A. E. Soc. 3, 206. Jl((b. — California, Sierras; Oregon; (perhaps dim. var. of Pratensis, winter form). 170. Mylitta, Edw. Pr. Ac. N. Sci. Ph. 1861, 160. H. Edw. Pr. Cal. Ac. N. Sci. 5, 167, *. Collina, Behr. JEpida, Bd. Ilab. — California; Arizona. DIURNAL LEPIDOPTERA. 27 171. Montana, Behr. Pr. Cal. Ac. N. Sci. 3, 85. Orsa, Bd. Hah. — California, Sierras; Lake Tahoe. 172. Picta, Edw. Pr. K Soc. Ph. 4, 201. Streck. pi. 8, fig. 10. JIab. — Colorado; Nebraska, (coll. Dodge). 17;}. Canace, Edw. Tr. A. E. Soc. 3, 206. Hah. — Arizona. ERESIA, Doub. 174. Frisia, Poey, Cent. Lep. Cuba, pi. 2. Gj/ffcs, Hew. Hab. — Key West. 175. Texana, Edw. Pr. E. Soc. Ph. 2, 81. Cincta, Edw. Smerdis, Hew. Hab. — Texas ; Florida. 17(5. Punctata, Edw. Tr. A. E. Soc. 3, 191. Hab. — Arizona; New Mexico. SYNCHEOE, Bd. 177. Janais, Drury, 3, pi. 17. Hab. — Texas. 178. Mediatrix, Feld. — Reise Novara, 3, 395. (^ISauiidersii, Edw. Synop.). //at.— Texas. 179. Adjutrix, Scud. Syn. List, 1875, 269. {^Lacuiia, Edw. Synop.). Hab. — Texas. 180. Erodyle, Bates, Ent. Mo. Mag. 1, 84. Hab. — Texas. 181. Crocale, Edw. Tr. A. E. Soc. 5, 17. Mead, Rep. Wheeler Exp. 5, 765, pi. 37. Hab. — Arizona. CYSTINEURA, Bd. 182. Amymone, Men. En. An. Mus. St. Petersburg, 1, 123, pi. 9. Hab. — Texas. 28 WM. H. EDWARDS. GRAPTA, Kirby. 183. Interrogationis, F. dim. var. Umbuosa, Lintn. Tr. A. E. Soc. 2, 313. Edw. But. N. A. 1, 109, pi. 38. dim. var. Fabricii, Edw. Tr. A. E. Soc. 3, 5; id. But. N. A. 1, 113, pi. 39, :^<. C Aureum, Bd.-Lec. 192, pi. 51. Interrogationis, Harr. 298, fig. 124. Hah. — United States except Pacific ; Arizona ; Canada ; Nova Scotia. 181. Comma, Ilarr. dim. var. IIarrisii, Edw. Can. Ent. 5, 181. Comma, Harr. 300, pi. 4, fig. 1. Lintn. Pr. E. Soc. Ph. 3,55,*. Edw. But. N. A. 1, 99, pi. 36, *. dim. var. Dryas, Edw. Tr. A. E. Soc. 3, 17; id. But. N. A. 1, 107, pi. 37. ITab. — Eastern, Middle and Northwestern States; Kansas; Texas ; Canada ; Nova Scotia. 185. Satyrus, Edw. Tr. A. E. Soc. 2, 374; id. But. N. A. 1, 119, pi. 40, 5|<. H. Edw. Pr.Cal. Ac. N.Sc. 5,168, *. Pearson, Can. Ent. 7, 216, jfc. Mead, Rep. Wheeler Exp. 5, 767. Hab. — ^Colorado to California; New Mexico; Oregon; British America; Ontario. 186. Marsyas, Edw. Tr. A. E. Soc. 3, 16; id. But. N. A. 2, pi. 2 of Grapta. Hab. — California. 187. Hylas, Edw. Tr. A. E. Soc. 4, 68; id. But. N. A. 2, pi. 2 of Grapta. Mead, 1. c. 5, 768. Hab. — Colorado. 188. Rusticus, Edw. Tr. A. E. Soc. 5, 107. Hab. — California; Vancouver's Island. 189. Faunus, Edw. Pr. Ac. N. Sci. Ph. 1862, 222; id. But. N. A. 1, 97, pi. 35. Pearson, Can. Ent. 7, 49, >^. Hab. — Mountains of New England and New York; occasional West Virginia to Georgia; British America; Atlantic to Pacific. DIURNAL LEPIDOPTERA. 29 100. Silvius, Edw. Tr. A. E. Soc. 5, 108. Ilah. — California. ini. Zephyrus, Edw. Tr. A. E. Soc. 3, 16; id. But. N. A. 1, 121, pi. 40. H. Edw. Pr. Cal. Ac. N. Sc. 5, 1G9, *. Mead, 1. c. 5, 769. Uah. — Montana to New Mexico; Utah; California; Oregon. 1!)2. Gracilis, Gr.-Rob. Ann. N. Y. Lye. N. Hist. 8, 432. Streck. pi. 8, fig. 14. Hah. — Xew Harapsliire, White Mountains; British America; Quebec ; Alaska. 193. Oreas, Edw. Tr. A. E. Soc. 2, 373; id. 5, 109. Hah. — California ; Oregon. 194. Silenus, Edw. 1. c. 3, 15; id. But. N. A. 2, pi. 1 of Grapta. Ilah. — Oregon ; Vancouver's Island. 195. Progne, Cram— Bd.-Lec. 188, pi. 50. Morr. 56. Harr. 301. Lintn. Pr. E. Soc. Phil. 3, 58, *. G Argenteimi, Kirby. Hah. — Xorthern and Western States; British America; Canada; Nova Scotia; Anticosti. 196. J Album, Bd.— Bd.-Lec. 185, pi. 50. Morr. '56. Harr. 298. Lintn. l^r. E. Soc. Ph. 3, 58, *. Hah. — Northern States; Wisconsin; British America to Pacific; Canada; Nova Scotia; South Labrador. V.4NESSA, F, 1!)7. Antiopa, L.— Bd.-Lec. 173. Morr. 57. Harr. 296, fig. 121, 122, ^. Lintn. Pr. E. Soc. Ph. 3, 59, ^. Saund. Can. Ent. 1, 75, j)c. var. Bunker, Can. Ent. 8, 240. var. LiNTNERir, Fitch, 3d. Rep. N. Y. St. Ag. Soc. No. 211. Morr. 57. Halt. — United States; British America; Canada; Nova Scotia; South Labrador. 198. Californica, Bd. Ann. Soc. Ent. Fr. 2, 10, 306. Morr. 58. Behr, Pr. Cal. Ac. Sci. 4, 123, jfc. Mead, 1. c. 5, 769. H. Edw. Pr. Cal. Ac. N. Sci. 5, 171, *. Hah, — California; Oregon; Colorado. 30 WM. n. EDWARDS. 199. Milberti, Godt.— Bd.-Lec. 187, pi. 50. Morr. 5G. Harr. 302, fig. 125. Lintn. Pr. E. Soc. Ph. 3, 61, :^<. Saund. Can. Ent. 1, 7G. *. Mead, 1. c. 5, 769, >^. FuRCiLLATA, Say, 2, pi. 27. Hab. — Northern States; Wisconsin; Colorado; Montana; Cali- fornia; British America; Canada; Nova Scotia. PYRAMEIS, Doub. 200. Atalanta, L.— Bd.-Lec. 175. Morr. 58. Harr. 294, fig. 120, *. Hjc. Bd.-Lec. 180, pi. 48, jjc. Morr. 60. Harr. 292, fig. 119, >|c. Lintn. Pr. E. Soc. Ph. 3, 63, 5|<. Saund. Can. Ent. 1, 105, >|c. Hah. — Northern United States; Kansas; British America; Canada; Nova Scotia; South Labrador. 202. Cardui, L.— Bd.-Lec. 178. Morr. 59. Saund. Can. Ent. 1, 93, *. Scud. Am. Nat. 10, 392, 602, *. Hab. — United States, generally; British America; Canada. 203. Carye, Hiib. Samml. Ex. Schmett. 1. Behr, Pr. Cal. Ac. N. Sci. 4,125, *. H. Edw. 1. c. 5, 329, *. Hab. — California; Arizona. .lUXONIA, Doub. 204. Lavinia, Cram. var. Orythia, Sm.-Abb. 1, pi. 8. Ca;ma, Hiib.— Bd.-Lec. 182, pi. 49, *. Morr. 61. Lavinia, Harr. 293. Hab. — Middle and Southern States to Pacific; occasional Massachusetts and Ontario. AMARTIA, Doub. 205. Jatrophae, L.— Cram. 3, pi. 202, fig. E. F. Morr. 62. Hab. — Texas ; Florida. EURE9IA, Bd. 206. Lethe, F. Ent. Syst. 3, 8(1. Hab. — Texas, occasional ; (coll. Belfrage). EIJNICA, Feld. 207. Modesta, Bates, Ent. Mo. Mag. 1, 113. Hub. — Texas, occasional; (coll. Boll.). DIURNAL LEPIDOPTERA. 31 208. ? Monima, Scud, (not Cramer). Hijperipte, Edw. Synop. (not Hiib.). Hah. — Florida, occasional ; (coll. Edwards). TIWETES, Bd. 209. Coresia, Godt. Enc. Meth. 9, 359. Zerynthia, Hiib. Ex. Schmett. 2. Hah. — Texas, occasional ; (coll. Belfrage). 210. Petreus, Cram. 1, pi. 87, fig. D. E. (^Eleucha, Edw. Synop.). Hah. — Florida, occasional; (coll. Chapman). 211. Eleucha, Doub. Gen. Di. Lep. pi. 33. Hah. — Texas, occasional ; (coll. Belfrage). 212. Chiron, F. J/ar/».^ Cram. 3, pi. 200, fig. D. E. Hah. — Texas, occasional ; (coll. Belfrage). CAI.I.irORE, Doub. 213. Clymena, Cram. 1, pi. 24, fig. E. F. Hah. — Florida, occa.sional; (coll. Edwards). lilillEXITIS, F. 214. Ursula, F.— Sm.-Abb. pi. 10, *. Bd.-Lec. 109, pi. 53, :^c. Morr. ()4. Asti/anax, F. Ephestion, StolL Harr, 283, >|i:. Hah. — Atlantic States; Mississippi Valley ; Kansas ; Arizona ; Canada. 215. Proserpina, Edw. Fr. E. Soc. Ph. 5, 148; id. But. N. A. 1, 125, pi. 41. Hah. — New York, Catskill Mountains; New Hampshire, White Mountains ; Canada ; Nova Scotia. 21G. Arthemis, Drury.— Say, 2, pi. 23. Bd.-Lec. 202, pi. 54. Morr. 65. Harr. 28:}, pi. 1, fig. 7. Lintn. Pr. E. Soc. Ph. 3, (52, jjc. Mead, Can. Ent. 7, 102, >fc. Lamina, F. Hah. — Northern United States ; British America to Pacific ; Canada ; Nova Scotia, 32 WM. H. EDWARDS. 217. Weidemeyerii, Edw. Pr. Ac. N. Sc. Ph. 1861, 1G2; id. But. N. A. 1,127, pi. 42. Morr.327. 'Mead, Eep. Wheeler Exp. 5, 770, pi. 38. Hab. — Rocky Mountains; Montana to New Mexico; Utah; Arizona. 218. Disippus, Godt.— Bd.-Lec. 204, pi. 55, >|<. Morr. 65. Harr. 281, fig. 109. Lintn. Pr. E. Soc. Ph. 3, 63, >fc. Riley, 3rd. Mo. Ent. Rep. 153, ^. var. Mead, Can. Ent. 4, 216. Hah. — United States ; Canada ; Nova Scotia. 219. Lorquini, Bd. Ann. Soc. Ent. Fr. 2, 10, 301. Morr. HQ. Edw. But. N. A. 1, 129, pi. 43. Mead, 1. c. 5, pi. 38. H. Edw. Pr. Cal. Ac. N. Sci. 5, 171, ^. Hab. — California; Arizona. HETEROCIIROA, Bd. 220. Californica, Butler, Pr. Zool. Soc. Lond. 1865, 485. Mead, 1. c. 5, pi. 38. H. Edw. Pr. Cal. Ac. N. Sci. 5, 171, j|c. Eulalia, Bd. Bredoivii, Edw. But. N. A. 1, 131, pi. 44. Hab. — California; Arizona. APATURA, F, 221. Celtis, Bd.— Bd.-Lec. 210, pi. 57. Morr. 68. Edw. But. N. A. 2. pi. 1 of Apat. Lycaon, Riley, 6th. Mo. Ent. Rep. 137, >|^. Eiley, 2d. Mo. Knt. Rep. 125, :>^. Ilah. — Illinois to Kansas ; Texas. 22G. Troglodyta, F. , Asti/onax^ Cram. 4, 337, fig. A. B. Hah. — Florida; (auct. Scud.). SATYRIN.E. NEONYMPHA, West. 227. Eurytris, F. Eurvthris, Bd.-Lec. pi. 51, >|<. Morr. 73. Harr. 30G, fig. 129. Saund. Can. Ent. 2, 139, ^. Hab. — Atlantic States; IMississippi Valley; Canada. 228. Sosybius, F.— Bd.-Lec. pi. G3, *. Morr. 74. Hab. — Middle and Southern States; Mississippi Valley. 229. Rubricata, Edw. Tr. A. E. Soc. 3, 212. Hub — Texas. 230. Areolatus, Sra.-Abb. l,pl. 13,>)c:. Bd.-Lec. pi. G3,^. Morr. 74. Hah. — Gulf States; occasional in New Jersey; (coll. Meyer). 231. Gemma, Hiib.— Bd.-Lec. pi. 62, >j<. Morr. 73. Ilnb. — West Virginia to Gulf States. 232. Henshawi, Edw. Tr. A. E. Soc. 5, 205. Hub. — Arizona. 233. Canthus, L.— Bd.-Lec. pi. GO. Morr. 74. Boin'/nca/li, Harr. o05, fig. 128. Hib. — Northern States; Ontario; Quebec. COEXOXWlIPH.i, Wesc. 234. California, West.-IIen. Gen. Di. Lep. 398, pi. 67. Cii/iJor)u'i(s. V>d. var. Erynoii, II. Edw. Pr. Cal. Ac. N. Sci. v. G, Dec. 187G. var. Galactinus, Ann. Soc. Ent. Fr. 2, 10, 309. Morr. 80. Hdb. — California ; Montana. 235. Inornata, Edw. Pr. Ac. N. Sc. Ph. 18G1, 1G3. Morr. 328. JI<(b. — Montana; British America, Lake Winnipeg. TKA.NS. AMEIl. ENT. SOC. VI. (5), FEBRUARY, 1877. 34: \VM. H. EDWARDS. 236. Ochracea, Edw. 1. c. 18G1, 163. Morr. 328. Mead, Rep. Wheeler Exp. 5, 772. Huh. — Rocky Mountains; jMontana to Arizona; Kansas; Britisli America, Lake Winnipeg. 237. Ampelos, Edw. Tr. A. E. Soc. 3, 213. lldh. — Oregon; Montana. 238. Kodiak, Edw. 1. c. 2, 375. Ilab. — Kodiak. 239. Brenda, Edw. 1. c. 2, .375. llah. — California, Los Angelos. 240. Pamphiloides, Reak. Pr. E. Soc. Ph. 6, 146, X- llab. — California, EKEBIA, Dalm. 241. Fasciata, Butl. Cat. Satyr. B. Mus. 92, pi. 2, fig. S. Hub. — Boreal America. 242. Discoidalis, Kirby, Faun. Bor. Am. 4, 298, pi. 3, fig. 2, 3. Morr. 75. Ilah. — Boreal America. 243. Vesagus, West.-IIen. Gen. Di. Lep. 380, pi. 64, X- llab. — Rocky Mountains; (prob. B. Am.). 244. Rossii, Curtis, App. Ex. Ross. 67, pi. A. Hub. — Boreal America. 245. Mancinus, West.-Hen. Gen. Di. Lep. 380, pi. 54, X- ILib. — Rocky Mountains; Britisli America; Alaska. 246. Haydenii, Edw. Rep. Ilayden Exp. Monta. 1872, 467; id. Tr. A. E. Soc. 5, 19. Ilah. — Montana. 247. Callias, Edw. Tr. A. E. Soc. 3, 274. Ti/ndaruK^ Esper. var. Callias, Mead, Rep. Wheeler Exp. 5, 775. llab. — Colorado; Mexico. 248. Epipsodea, Butl. Cat. Satyr. Brit. Mus 80, pi. 2. Mead, 1. c. 5, 775. Rhodla, Edw. Tr. A. E. Soc. 3, 273. Hah. — Colorado; New Mexico. DIURNAL LEPIDOPTERA. oS I>EBIS, West. 240. Portlandia, F.— Bd.-Lec. 22(;, pi. 58, >fc. Andnimachd^ Iliib. — Say, 2, pi. 36. Morr. 78. Hah. — Middle and Southern States; Mississippi Valley ; Iowa; Montana. GYROC IIEIL.IIS, Butl. 250. Tritonia, Ivlw. Tr. A. E. Soc. 5, 18. Hah. — Arizona. I1I1*PAK< IIIA, F. 251. Ridingsii, Edw. Pr. E. Soc. IMi. 4, 201. Streck. pi. 4, fig. 6, 9 . Mead, 1. c. 5, 774. Hah. — Colorado; Nevada; Montana. S.ITYRHS, West. 252. Pegala, F.— Morr. 77. Edw. Pr. E. Soc. Ph. (5, 1!)5. Ilah. — Gulf States. 253. Alope, F.— IJd.-Lec. 228, pi. 59, j|<. Morr. 76. Ilarr. 305, H-. 127. Edw. Pr. E. Soc. Ph. 6, 196-200. Hub. — -Atlantic States; Mississippi Valley ; Ontario. 254. Boopis, Bdir. Proc. Cal. Ac. N. Sc. 3, 164. Jlal). — ("alifornia ; Oregon; Montana. 255. Nephele, Kirby, Faun. Bor. Am. 4, 297. Morr. 76. Ilarr. 306, fig. 130. Edw. 1. c. 6, 195. Huh. — Northern States; Maine to Nebraska; British America; Canada. 256. Wheeleri, Edw. Tr. A. E. Soc. 4, 343; id. But. N. A. 2, pi. 1, of Satyr. Mead, 1. c. 5, 773, pi. 39. Hojfmauni, Streck. pi. 4, fig. 8, 9; pi. 8, fig. 12, % . J/(ih. — I'tah ; Southern California ; Arizona, Apache. 257. Gabbii, E.lw. Tr. A. E. Soc. 3, 193. JJdh. — Oregon. 258. Phocus, Edw. 1. c. 5, 14. J/nh. — British Columbia; Montana. • 259. Ariane, Bd. i\nn. Soc. Ent. Fr. 2, 10, 307. Morr. 77. J/ah. — California. 36 WM. n. EDWARDS. 260. Meadii, Edw. Tr. A. E. Soc. 4, 70. Mead, 1. c. 5, 774. ][(ih. — Colorado ; Arizona. 261. Silvestris, Edw. Pr. Ac. X. Sc. Ph. 1861, 162. Ilnh. — California; Nevada; Montana. 262. Sthenele, Bd. Ann. Soc. Ent. Fr. 2, 10, 308. Morr. 77. Streck. pi. 4, fig. 7, ^ . ITah. — California. 263. Oetus, Bd. Lcp. de la Cal. 63. Hah. — California. 264. Charon, Edw. Tr. A. E. Soc. 4, 69. Mead, Rep. Wheeler Exp. 5, 773. Hah. — Montana; Colorado; New Mexico. €HIONOBA!i$, Bois. 265. Gigas, Butl. Cat. Satyr. Br. Mus. 161, pi. 2. Edw. But. N. A. 2, pi. 1, 9 , pi. 2, "S , of Chionobas. Hah. — Vancouver's Island. 266. Iduna, Edw. 1. c. 2, pi. 1 of Chionobas. Hah. — California. 267. Californica, Bd. Lep. de la Cal. 62. Edw. 1. c. 2, pi. 2 of Chionobas. Hah. — California. 268. Nevadensis, Feld. Reise Nov. 3, pi. 62, fig. 4, 5. Hah. — California. 269. Chryxus, West.-Hen. Gen. Di. Lep. 383, pi. 64, Edw. Pr. E. Soc. Ph. 2, 82. Scud. id. 5, 5. Mead, 1. c. 5, 777. Taygetc, Edw. Calais^ Scud. Hah. — Rocky Mountains; California; Hudson's Bay. 270. Uhleri, Reak. Pr. E. Soc. Ph. 6, 143. Mead, 1. c. 5, 776. Streck. pi. 4, fig. 5, S . Hah. — -Rocky Mountains ; Colorado; Montana. 271. Tarpeia, Esper, Eur. Schmett. 1, pi. 83. Butl. Cat. Satyr. Brit. Mus. p. 161. Nanna^ Men. Hah. — Boreal America. r»IURNAL LEPIDOPTERA. 37 •2~1. Bore, Esper, Eur. Schmett. 1, pi. 100. Scud. Pr. E. Soc. Ph. 5, 10. Bootes, Hiib. Tai/gete, Geyer. Ifab. — Labrador; Newfoundland; Greenland. 273. Jutta, Iliib. Eur. Sebuiett. 1, fig. 014, 615. Scud. 1. c. 5, 3. Bahhr, Iliib. ILib. — British America; Hudson's Bay; Quebec; Labrador. 274. Semidea, Say, 3, pi. 50. Harr. 304. fig. 126. Morr. 80. Scud. 1. c. 5, 3; id. Geol. Rep. N. H. 1, 344. Mead, 1. c. 5, 776. Oeno, Bd. Icones, 195, pi. 39. Scud. 1. c. 5, 13. Also, Bd. Cramhis, Freyer. Assimi'is, Butl. Hah. — Labrador; Boreal America; White Mountains of New Hampshire; Colorado; New Mexico. 275. Subhyalina, Curtis, App. Ross Exp. 68. Ilab. — Boreal America. LIBYTHEIN.E. L,IBYTIIEA, F. 276. Bachmanni, Kirtland, Sill. Jl. 2, 13, 336. Edw. But. N. A. 2. pi. 1 of Libythea, :^c:. Ilab. — Atlantic States; Mississippi Valley ; Kansas; Texas. 277. Carinenta, Cram. 2, 108, fig. E. F. Ilab. — New Mexico ; Arizona. ERYCINIDiE. E MYCIN IN.E. i>f:.no:\'i.4!S, west. 278. Mormo, Feld.— Morr. 104. Dumeli, Behr. Mormon ia, B<1. Ilab. — California; Utah; Arizona; New Mexico. 279. Cythera, Edw. Tr. A. E. Soc. 4, 345. xAIead, Rep. Wheeler Exp. 5, pi. 36. IJab. — Arizona. 38 WM. H. EDWARDS. * 280. Virgulti, Belir. Pr. Cal. Ac. N. Sc. 3, 178. Sonor cauls, Feld. Ilah. — Southern California. 281. Palmerii, Edw. Tr. A. E. Soc. 3, 195. Hah. — Arizona. €IIARIi9, West. 282. Caenius, L. P«mt7a, Bd.-Lec. 131, pi. 37. Morr. 104. Bah. — Southern States. 283. Borealis, Gr.-Rob. Ann. N. Y. Lye. N. Hist. 8, 351. Ilah. — ^Middle States; Illinois. 284. Nemesis, Edw. Tr. A. E. Soc. 3, 212. Ilah. — Arizona. EU.TIENIA, Latr. 285. Atala, Poey, Cent. Lep. Cuba, pi. 2. ' Toxea, Gray. Hah. — Florida. LYC^NID^. THECLINiE. TIIECXA, F. Group I. 286. Grunus, Bd. Ann. Soc. Ent. Fr. 2, 10, 289; id. Lep. de la Cal. 43. Morr. 100. Hah. — California, Yosemite. Group II. 287. Crysalus, Edw. Tr. A. E. Soc. 4, 344. ILih. — Colorado; Utah, 288. Halesus, Cram.— Bd.-Lec. 83, pi. 25, *. 3Iorr. 91. Do/icJi(jSj 11 lib. Juanita, Scud. Iliih. — Gulf States; California. 289. M- Album, Bd.-Lec. 80, pi. 26, *. Morr. 92. l\>jrli., l}d.-Lec. 88, pi. 27. Huh. — Gulf States; occasional in Virginia and Pennsylvania. DIURNAL LEPIDOPTERA. 39 Group III. 200. Favonius, Sm.-Abb. 1, pi. 14, ^. Udl). — (Julf State.s; South Carolina. •l\n. Autolycus, Edw. Tr. A. E. Soc. 3, 271. Ilah. — Texa.s ; Missouri. 2!)2. Alcestis, Edw. 1. c. 3, 271. Jhih. — Texas. 293. Humuli, Harr. 276, pi. 4, fig. 3. Favonius, Bd.-Lec. 95, pi. 30, ^. Morr. 95. var. Hypericin Bd.-Lec. 90, pi. 28. Ihth. — Middle and Southern States; Mississippi Valley. 294. Melinus, Hub. Zutraeg. fig. 121, 122. Bd. Ann. Soc. Ent. Fr. 2, 10, 287. var. PuDiCA, H. Edw. Trans. Cal. Ac. Sc. 6; Dec. 187G. Ihih. — California. 295. Acis, Drury, 1, pi. 1. Morr. 101. IJnh. — Florida, Key West. 29(;. Strigosa, Harr. 276. Edw. But. X. A. 1, 144, pi. 48. Saund. Can. Ent. 1, 99, jfc. Liparops, Scud. (nee. Bd.-Lec). Jlab. — Atlantic States ; Mississippi Valley ; Canada. 297. Ontario, Edw. Tr. A. E. Soc. 2, 209; id. But. N. A. 1, 143, pi. 48. Hah. — Ontario; New England, (auct. Scud.). 298. Calanus, Iliib. Fahuer, Bd.-Lec. 92, pi. 29, >fc. Morr. 95. Inorata, Gr.-Rob. Saund. Can. Ent. 1, 57, jf;. Lorata, Gr.-Rob. ILtJ). — Atlantic States ; Mississippi Valley ; Texas ; New Mexico; Canada, 299. Edwardsii, Saund. in Gr.-Ftob. Tr. A. E. Soc. 1, 172. Falacci-, Harr. Calfinvs. Gr.-Rob. JJab. — Northern States, Maine to Nebraska; Colorado; Canada, 40 WM. II. EDWARDS. 300. Acadica, Edw. Pr. Ac. N. Sc. Ph. 1802, 55; id. But. N. A. 1, 1-10, pi. 48. Saund. Can. Ent. 1, 95, >|c. Souhegan, Whitney. Ilah. — Northern States; Canada. 301. Californica, Edw. 1. c. 1862, 223. var. Cyqnus, Edw. Tr. A. E. Soc. 3, 207. Borua, Bd. Ilab. — California; Oregon; Vancouver's Island. 302. Auretorum, Bd. Ann. 8oc. Eut. Fr. 2, 10, 288. Morr. 99. Ifab. — California. 303. Sylvinus, Bd. 1. c. 2, 10, 287. Morr. 99. Hab. — California. 304. Dryope, Edw. Tr. A. E. Soc. 3, 19, 193. ITab. — California. 305. Putnami, H. Edw. Pr. Cal. Ac. N. Sci. 6, Sept. 1876. Hab. — Utah, Spring Lake. 306. Adenostomatis, H. Edw. 1. c. 6, Sept. 1876. Hub. — Southern California, Tehachipi Pass. 307. Spadix, H. Edw. 1. c. 6, Dec. 1876. II lb. — California. 308. Tetra, Behr. in Edw. Tr. A. E. Soc. 3, 19. ILtb. — California. 309. Chalcis, Behr. in lit. Edw. 1. c. 2, 376. Hub. — California. 310. Saepium, Bd. Ann. Soc. Ent. Fr. 2, 10, 288. Morr. 90. JIdb. — California; Utah; Colorado. 311. Nelsoni, Bd. Lcp. de la Cal. 43. J/ab. — California, Yosemite. 312. Ninus, Edw. Tr. A. E. Soc. 3, 270. JIab. — Colorado. 313. Spinetorum, Bd. in Hew. Ulust. Part 3, fig. 198, 199. Bd. Lep. de la Cal. 42. Ifab. — California, Mount Shasta and Placer County. 314. Siva, Edw. Tr. A. E. Soc. 5, 110. Hab. — Arizona. DIURNAL LEPIDOPTERA. 41 315. Smilacis, Bd.— Bd.-Lec. 107, pi. 33, *. Morr. 08. Auhurniana, Ilarr. 277. Hah. — Atlantic States; Mississippi Valley ; Texas. 316. Castalis, Kdw. Tr. A. E. Soc. 3, 208. Ilah. — Texas. 317. Poeas, Hiib.— Bd.-Lec. Ill, pi. 35. Morr. 103. ]I|<. Morr. 102. Sauud. Can. Ent. 1, 9G, ^. Ilah. — United States generally; British America; Ontario; Quebec. LYCAENINiE. FENISECA, Grote. 330. Tarquinius, F. Cratseyi, Bd.-Lec. 128, pi. 37. Morr. 85. Porsenna, Scud. Ilab. — Atlantic States; Mississippi Valley ; Ontario Quebec; Nova Scotia. CIIRYSOPHANUS, Doub. Group I. 831. Arota, Bd. Ann. Soc. Ent. Fr. 2, 10, 293. Morr. 86. Streck. pi. 10, fig. 27, 28. Hah. — California. 332. Virginiensis, Edw. Tr. A. E. Soc. 3, 21. Hah. — California; Nevada. 333. Hermes, Edw. 1. c. 3, 21. Hah. — California; Nevada. Group II. 334. Xanthoides, Bd. Ann. Soc. Ent. Fr. 2, 10, 292; id. Lep. de la Cal. 45. Morr. 86. Streck. pi. 10, fig. 12, 13. Hah. — California.. 835. Dione, Scud. Tr.Chic. Ac. Sci. 1, 330. Hah. — Iowa; Nebraska; Missouri; Kansas. 336. Gorgon, Bd. 1. c. 2, 10, 292. Morr. 86. Streck. pi. 10, fig. 17. Hah, — California. DIURNAL LEPIDOPTERA. 43 337. Thoe, Cd.-Lec. 125, pi. 38. Morr. 84. Saund. Can. Ent. 1, 57, *. JIi/llus, I]dw. Synop, nee Cram. JIah. — Northern United States; Maine to Nebraska; Kansas; Canada. 338. Nais, Edw. Tr. A. E. Soe. 5, 291. Hi(h. — Arizona. Group III. 339. Mariposa, Rcak. Pr. E. Soe. Ph. G, 149. Streck. pi. 10, fig. 25, 26. N^walis, Bd. ITuh. — California. 340. Zeroe, Bd. Lep. de la Cal. 45. Ia7ithc, Edw. Tr. A. E. Soe. 3, 211. Streck. pi. 10, fig. 23, 24. Hub. — California; Colorado. 341. Helloides,Bd. Ann.Soc. Ent.Fr.2,10,291. Morr. 86. Streck. pi. 10, fig. 19, 20. Mead, Rep. Wheeler Exp. 5, 780, *. Castro, Beak. Hub. — Montana to Arizona; California; Oregon. 342. Dorcas, Kirby, Faun. Bor. Am. 4, 299, pi. 4. Morr. 90. Ilab. — British America; Southern Labrador. 343. Epixanthe, Bd.-Lec. 127, pi. 38. Morr. 85. Saund. Can. Ent. 1, 57. Hub. — Northern United States; Kansas; British America; Canada. 344. Americana, D'Urban, Can. Nat. 5, 24(i. Ilarr. 273, fig. 104, ^. Saund. Can. Ent. 1, 3, jjc. rhlseas, Bd.-Lec. 123. Morr. 84. Ili/pophlseas, Bd. Hub. — Northern States ; West Virginia ; Kentucky ; California, (auct. Boisduval); British America, Columbia to Canada; Nova Scotia. 44 WM. H. EDWARDS. Group IV. 345. Cupfeus, Edw. Tr. A. E. Soc. 3, 20 ; id. But. N. A. 2, pi. 1 of Chrys. JIab. — Oregon; California; Sierras. 346. Rubidus, Behr, Pr. E. Soc. Ph. 6, 208. Edw. But. N. A. 2, pi. 1 of Chrys. Hab. — Oregon; Montana; Nevada. 347. Sirius, Edw. 1. c. 3, 270; id. But. N. A. 2, pi. 1 of Chrys. Mead, 1. c. 5, 781. ^a6>— Montana ; Colorado; Arizona. LiYCAEBfA, Fab. Group I. 348. Heteronea, Bd. Ann. Soc. Ent. Fr. 2, 10, 298. Morr. 89. Edw. But. N. A. 2, pi. 1 of Lye. Streck. pi. 10, fig. 6, S , 7, ?. Mead, 1. c. 5, 781. Hub. — California ; Utah ; Colorado. 349. Clara, H. Edw. Pr. Cal. Ac. N. Sc. 6, Feb. 1877. Hab. — California, Los Angelos. 350. Speciosa, H. Edw. 1. c. v. 6, Dec. 1876. Ilab. — California, Kern County. 351. Lycea, Edw. Pr. E. Soc. Ph. 2, 507. Mead, 1. c. 5, 785, *. EajKihoe, Keak. — Streck, pi. 10, fig. 14, ■£ , 15, 9 . //ai.— Montana ; Colorado; Arizona. 352. Arnica, Edw. 1. c. 2, 80. Hab. — 'British America, Mackenzie's River. 353. Sagitifera, Feld. Reise Nov. 2, 281, pi. 35. Catalina, Reak. Pr. Ac. N. Sc. Ph. 1860, 244. Streck. pi. 10, fig. 1, ^ , 2, 9 . Lorquini, Behr, Pr. Cal. Ac. N. Sc. 3, 280. Daiinia, Edw. Mead, 1. c. 5, 785. var. Viaca, Edw. Tr. A. E. Soc. 3, 209. lihsea, Bd. iZa6.-— Colorado ; California, DIURNAL LEPIDOPTERA. 45 354. Icaroides, Bd. Ann. Soc. Ent. Fr. 2, 10, 297. Morr. 88. Daedalus, Behr, Pr. Cal. Ac. N. Sc. 3, 280. var. ParJah\ Behr, 1. c. 3, 280. 3Ihitha, Edw. Tr. A. E. Soc. 3, 194. Maricopa, Reak. Eri/miis, Bd. llah. — California. A species subject to much variation. 355. Pulla, Edw. Tr. A. E. Soc. 3, 194. Hah. — California, Sierras?. 356. Pembina, Edw. Pr. Ac. N. Sc. Ph. 1862, 224. Hah. — British America, Slave Lake. 357. Pheres, Bd. Ann. Soc. Ent. Fr. 2, 10, 297. Morr. 89. var. Eoins, Bd. lep de la Cal. 49. J/ah. — California to Colorado; Oregon; British Columbia; Vancouver's Island. 358. Phileros, Bd. Lep. de la Cal. 60. Helios, Edw. Tr. A. E. Soc. 3, 208. Hah. — California; Utah; Arizona. 359. Ardea, Edw. Tr. A. E. Soc. 3, 209. Hah. — California. 360. Kodiak, Edw. 1. c. 3, 20. Hah. — Kodiak. 361. Orcus, Edw. 1. c. 3, 276. Hah. — California. 362. Saepiolus,Bd. Ann. Soc. Ent. Fr. 2,10,296. Morr. 88. Mead, 1. c. 5, 784, >j<. dim. var. ? Aehaja, Behr, Pr. Cal. Ac. N. Sci. 3, 280. Rvfescens, Bd. Mead, 1. c. 5, 784. Hah. — California to Colorado. Group II. 363. Xerxes, Bd. 1. c. 2, 10, 296. Morr. 88. Hahs — California. 46 W3I. n. EDWARDS. 3G4. Antiacis, Bd. 1. c. 2, 10, 300. Morr. 90. var. Behrii, J^dw. Pr. Ac. N. Sc. Ph. 18G2. 224. PoIypJiemvs, Bd. var. Mertila, Edw. Pr. E. Soc. Ph. 6, 20G. Hah. — California; Arizona. 365. Couperi, Grote, Bui. Buf. Soc. N. Sc. 1, 185. FemLina, Streck. pi. 10, fig. 10, S , 11, ? . ITab. — Anticosti; Southern Labrador. 366. Lygdamas, Doub. Entomologist, 1842, 209. Edw. But. N. A. 1, 148, pi. 49. Mead, 1. c. 5, 784. var. Oro, Scud. Can. Ent. 8, 23. JIab. — Atlantic States; Michigan; Ohio; Colorado. 367. Sonorensis, Feld. Reise Nov. 2, 281, pi. 35, fig. 3, 4. Eec/la, Bd. Lep. de la Cal. 46. Edw. But. N. A. 2, pi. 1 of Lye. Ilab. — Southern California, Los Angelos. Group III. 368. Tehama, Beak. Pr. Ac. N. Sc. Ph. 1866, 246. Ci/la, Behr, Pr. Cal. Ac. N. Sc. 3, 281. Mstos, Bd. Hub. — California. 369. Orbitulus, Von Prunner. Streck. pi. 10. fig. 16, % . Eiisfica, Edw. Pr. E. Soc. Ph. 4, 203. Mead, 1. c. 5, 783. Ilab. — Colorado; Bocky Mountains. 370. Aquilo, Bd. Icones, 1, 62, pi. 12, fig. 7, 8. Fran]dmii\ Curtis, App. Boss Exp. 69, pi. A, fig. 8, 9. Hah. — Boreal America; Labrador. Group IV. 371. Enoptes, Bd. Ann. Soc. Ent. Fr. 2, 10, 298. Morr. 89. Hub. — (Jalifornia, Sierras; Arizona. 372. Glaucon, Edw. Tr. A. E. Soc. 3, 210. Mead, 1. c. b, 782. Hah. — Colorado. 373. Battoides, Behr, Pr. Cal. Ac. N. Sc. 3, 282. Mead, 1. c. 5, 782. Hub. — California, Sierras; Nevada; Colorado. 374. Lupini, Bd. Lep. de la Cal. pi. 46. 31inehaha, Scud. Hah. — California, Yosemite; Montana. DIURNAL LEPIDOPTERA. 47 375. Melissa, Edw. Tr. A. E. Soc. 4, 346. Streck. pi. 10, fig. 8, S , 9, 9 . Mead, 1. c. 5, 783, pi. 3fi. Ilah. — Arizona; New Mexico; Colorado; Montana; Nevada. 370. Scudderii, Edw. Pr. Ac. N. Sc. Ph. 1861, 164; id. 1. c. 1862, 225. Hah. — New York; Michigan; California; British Columbia; Ontario; Southern Labrador. 377. Acmon, West.-Hew. Gen. Di. Lep. pi. 76. Mead, 1. c. 5, 782. Antnegon, Bd. Morr. 87. Ilab. — California ; Arizona ; Colorado. 378. Anna, Edw. Pr. Ac. N. Se. Ph. 1881, 103. Streck. pi. lO, fig. 4, S , 5, 9 . Cajona, Reak. Argi/rotuxus, Behr, Pr. Cal. Ac. N. Sc. 3, 281. Philemon, Bd. Hab. — California to Colorado ; Montana; Oregon. 379. Piasus, Bd. Ann. Soc. Ent. Fr. 2, 10, 299. Morr. 89. Echo, Edw. Pr. E. Soc. Ph. 2, 500. Hab. — California; Arizona; Colorado. 380. Pseudargiolus, Bd.-Lec. dim. var. Violacea, Edw. Pr. E. Soc. Ph. 0, 201 ; id. But. N. A. 1, 147, pi. 49. dim. var. Pseudargiolus, Bd.-Lec. 118, pi. 30. Edw. I. c. 1, 151, pi. 50; id. Can. Ent. 7, 81, ;+c. Argwlus, Sm.-Abb. Hab. — Middle, Southern and Western States. 381. Neglecta, Edw. Pr, Ac, N. Sci. Ph. 1802, 56; id. But. N. A. 1, 153, pi. 50. Saund. Can. Ent. 1, 100, :^<. Hab. — Northern and Middle States; British xVmerica ; Canada. 382. Lucia, Kirby, Faun Bor. Am. 4, 299, pi. 3, fig. 8, 9. Harr. 275. Hab. — Northern States ; British America; Canada; Southern Labrador. Group V. 383. Amyntula, Bd. Ann. Soc. Ent. Fr. 2, 10, 294. Morr. 87. HaL — California ; Arizona. 48 WM. H. EDWARDS. 384. Comyntas, Godt.— Bd.-Lec. 120, pi. 3G. Morr. 83. Harr. 275, jjc. Edw. Can. Ent. 8, 202, jjc. Hah. — Atlantic States ; Mississippi Valley j Rocky Mountains ; British America; Canada. 385. Shasta, Edw. Pr. Ac. N. Sci. Ph. 1862, 224, Caklms, Behr, Pr. Cal. Ac. N. Sc. 3, 281. JS^i'vium, Bd. Hah. — -California; Oregon; Nevada; Utah. 386. Monica, Beak. Pr. Ac. N. Sci. Ph. 1866, 244. Streck. pi. 10, fig. 18. Uab. — Southern California; Arizona. 387. Alee, Edw. Tr. A. E. Soc. 3, 272. %ofa, Mead, (not Reakirt), Rep. "Wheeler Exp. 5, 783. Hah. — -Colorado; Arizona; Texas; occasional in Kansas; (coll. Snow.). 388. Gyas, Edw. 1. c. 3, 210. Hah. — Arizona. 389. Filenus, Poey, Cent. Lep. Cuba, pi. 2. Bd.-Lec. 114, pi. 35. Morr. 82. ^a6.— Gulf States. 390. Isophthalma, Ilerr.-SchaeiF. Fsciulo/ea, Morrison, Bui. Buf. Soc. N. Sc. 1, 186. JIah. — Florida ; Georgia. 391. Ammon, Lef.-De. Sag. Hist. N. Cuba, 012, pi. 16. Hah. — Florida Keys. 392. Fea, Edw. Tr. A. E. Soc. 3, 211. Jiab. — -Texas. 393. Exilis, Bd. Ann. Soc. Ent. Fr. 2, 10, 294. Morr. 87. Jla/t. — California ; Arizona. 394. Marina, Reak. Pr. Ac. N. Sc. Ph. 1868, 87. JIa/>. — Southern California, Los Angelos; (coll. Russell). 395. Theonus, Lef-De. Sag. Hist. N. Cuba, 611, pi. 16. C'a.s.s/«.s, Morrison, Bui. Buf Soc. N. Sc. 1, 187. Hah. — Florida Keys. DIURNAL LEPIDOPTEBA. 49 HESPERIDiE. SECTIONAL CAKTKBOCKl»IIAL.L'S, Led. 396. Mandan, Edw. Pr. E. Soe. Ph. 2, 20, pi. 5. Mesajyaiw, Scud. Pr. Bost. Soc. N. Hist. 11, 383. iSkada, Edw. Ilab. — British America, Pacific to Labrador; California, Men- docino; New Hampshire, White Mountains. 397. Omaha, Edw. 1. c. 2, 21. Mingo, J]dw. Cali/ornica, Scud. Syst. Rev. 54. Ilab. — Colorado; California; occasional in AVest Virginia, (coll. J. E. Meyer). AXC'YI.OXYPHA, Feld. 398. Numitor, F.— Morr. 12(1. Fuer, Hiib. Marginatum, Harr. 308, fig. 131. Hah. — Atlantic and Western States; Texas; Kansas; Ne- braska. COP.l-:OI>ES, Speyer. 399. Procris, Edw. Tr. A. E. Soc. 3,215, S , 9 . var. Waco, Edw. 1. c. 2, 122, % . Minima, Edw. 1. c. 19G, % . Ilab. — Texas. 400. Arene, Edw. 1. c. 3, 214. Ilab. — Arizona; Texas. TIIY.IIELICX'S, Speyer. 401. Hylax, Edw. 1. c. 3, 274. JJab. — Colorado; Dakota. 402. Garita, Reak. Pr. E. Soc. Ph. G, 150. Poweschei/c, I'arkcr, Am. Ent. 2, 271. Ilab. — Colorado; Illinois; luwa; Nebraska. TRANS. AMER. ENT. SOC. VI. (7) MaRi H, 1877. 50 WM. H> EDWARDS. PAMPHIIiA, F. Group I. 403. Massasoit, Scud. Pr. Ess. Ins. 3, 171. Hub. — New England; Long Island; Middle States; Texas; Colorado. 40-4. Zabulon, Bd.-Lec. pi. 76. Morr. 116. Hohomok, Harr. 313, fig. 187. Quadriquina, Scud, dim. var. ? , Pocahontas, Scud. Pr. Ess. Ins. 3, 171. Mab. — Atlantic States; Mississippi Valley ; Texas; Arizona; Canada. Group II. 405. Sylvanus, F.— Bd. Ann. Soc. Ent. Fr. 2, 10, 313. JIab. — Europe; California, (auct. Boisduval). 406. Sylvanoides, Bd. 1. c. 2, 10, 313. Morr. 107. )So)iora, Scud. Syst. Rev. 57. Ilab. — California. 407. Ruricola, Bd. 1. c. 2, 10, 315, K. Morr. 109. Hab. — California. 408. Comma, L. — Esp. Eur. Schmett. 1, pi. 23. Hiib Eur. Schmett. 1, fig. 479—481. Bd. Ann. Soc. Ent. Fr. 2, 10, 313. var. Scud. Mem. Bost. Soc. N. H. 2, 350, pi. 10, fig. 12—15. Juba, Scud. 1. c. 2, 349, pi. 10, fig. 19, 20. Manifoba, Scud. 1. c. 351, fig. 8 — 11. var. Colorado, Scud. 1. c. 349, fig. 16 — 18, Nevada, Scud. 1. c. 347, fig. 1—4. Sylvanoides, Scud, (nee Bd.) 1. c. 351, fig. 21, 22. Hab. — British America, Pacific to Labrador; Rocky Moun- tains; Montana to Arizona; Colorado to California. 409. Sassacus, Scud. Pr. Ess. Ins. .3, 173; id. Mem. Bost. Soc. N. Hist. 2, 346, pi. 10, fig. 5. 7. Hab. — New England ; Illinois; Georgia. 410. Pawnee, Dodge, Can. Ent. 6, 44. Hab. — Nebraska. DIURNAL LEPIDOPTERA. 51 411. Ottoe, Edw. Pr. E. Soc. Ph. G, 207. Scud. Mem. Bost. Soc. N. Hist. 2, 348, pi. 10, fig. G. Hah. — Indian Territory ; Kansas; Nebraska. 412. Napa, Edw. 1. c. 4, 202, pi. 1. Dacotah, Edw. Ridmgdi, Reak. Pr. E. Soc. Ph. 6, 151, $ . dim. var. 9 , Melane, Edw. Tr. A. E. Soc. 2, 312. Hnh. — Colorado. 413. Draco, Edw. 1. c. 3, 274. Ilnh. — Colorado. 414. Metea, Scud. Proc. Ess. Ins. 3, 177. Hab. — Connecticut; jSewYork; Texas. 415. Uncas, Edw. Pr. E. Soc. Ph. 2, 19, pi. 5. Hah. — Pennsylvania; Delaware; Ohio; Kansas; Dakota; Colorado; New Mexico; British America. 416. Licinus, Edw. Tr. A. E. Soc. 3, 275. Ilah. — Texas. 417. Seminole, Scud. Syst. Rev. 55. Ilai. — Fl(jrida. 418. Attalus, Edw. 1. c. 3, 27G. Hah. — Texas. 419. Yuma, Edw. Tr. A. E. Soc. 4, 346. Hah. — Arizona. 420. Meskei, Edw. Can. Ent. 9, March, 1877, 9 . Hab. — Texas, 421. Snowi, Edw. Can. Ent. 9, Feby. 1877. Hah. — Colorado. 422. Leonardus, llarr. 314, fig. 138. Morr. 110. Hah. — New England to West Virginia; Kansas. 423. Nemorum, Bd. Ann. Soc. Ent. Fr. 2, 10, 314. Morr. 107. Yreka, Edw. Pr. E. Soc. Ph. G, 207. Hab. — California. 52 WM. H. EDWARDS. 424. Agricola, Bd. 1. c. 2, 10, 314. Morr. 108. Hah. — California. 425. Pratincola, Bd. 1. c. 2, 10, 315, X- Morr. 108. Hah. — California. 426. Campestris, Bd. 1. c. 2, 10, 316, X- Morr. 108. Hah. — Califoraia. 427. Huron, Edw. Pr. E. Soc. Ph. 2, 16, pi. 1. Hah. — Atlantic States; Mississippi Valley; Texas; Kansas; Arizona. 428. Phylseus, Drury.— Bd.-Lec. pi. 78. Morr. 118. Vitellius, F. Bucephalus, Humph.-West. Br. But. 126, pi. 40, fig. 1—3. ^a6.— Middle and Gulf States to Pacific. 429. Brettus, Bd.-Lec. pi. 75, % . Morr. 118. Win,I\TXi:UIA, n.gen. Differs from Thanaos in the knob to antenna, which is more slender and much less abrupt; in the palpi which are shorter and less thickly clothed with bristles; and in the angulated {Daunus) or crenulated [Zampa) outline of hind wings. Note. — L. Zampa. This semi-tropical species I sent to Mr. A. G. Butler for determination, and he thus replies: " Zanipa seems to belong to a group of species provisionally retained under Thanaos and of which I consider H. Baunus, Cramer, to be the type. This group will consist of Daunus, Cr., Zampa, Edw., Motozi, Wallgr., Purendra, Moore, and one or two undescribed species from Angola and Abyssinia. Our example (British Museum) of Daunus is from St. Domingo, Motozi from Natal, Purendra from India and Ceylon. It should cer- tainly be separated generically, and I should be glad if you would give it a distinctive name. Cramer s figure of Daunus gives a false idea of the form of the species." Mr. Butler accompanied this with a pen drawing of Daunus, its antennte, palpi, etc., and the definition of the genus is his own. — E. PlIOLI^iOR.i, Speyer. Very similar to Thanaos; knob of antenna spindle-shaped, a little shorter than in Thanaos; apical joint of palpi more prominent; clothing of the two basal joints below snow-white; brush at base of antennae with highly scaly hairs; anterior coxae white; hind tibiae with fewer and shorter hairs; body more slender; abdomen longer than head and thorax; wings broader, more rounded; hind margin of fore wing less oblique. EUDAMl'S, Swain. Antennre a little longer than half the costal margin of fore wings ; knob very Blender, spindle-shaped, bent hook-like just beyond the middle and extended to a long, fine point; brush at base of antennae very short; one-quarter as long as the diameter of the eyes; palpi surpassing front less than length of eyes; apical joint short, thick, conical; tibia without spines; abdomen short, not reaching the anal angle of the hind wings; male with narrow costal fold. Group 1. Hind wings on sub-median nervure little or not all produced, " 2. There prolonged in a lobe. " 3. There caudated. Note. — As to Eudamus : The few species of this large genus which I have been able to study allow no judgment as to the propriety or necessity of splitting them into several genera. Kcrrick-Schaeffer denies that even the long-tailed species are to be separated generically. I have not been able to find any other differ- ence, except in the shape of the wings, and these seem not to allow the con- stituting of well separated groups. — S. 68 WM. II. EDWARDS. EEKATA. Page 5, line 19, for Otto read Adolf. Page 7, for Herrick. SehaeflPer, read Herrick-Schaeflfer. Page 7, for Lefebore read Lefobvre. Page 7, for Ochshcimer read Ochsenheimer. Page 16, No. 59, read Chione, Curtis, etc. Page 19, No. 89, transpose Scud. Psyche to Plexijypus, line below. Page 24, No. 144, for Phaeton read Phaeton. Page 26, No. 168, read, var. $ Fall Ida, Edw. Pr. E. Soc. Ph. 2, 505. Mata, Reak. (bleached example). Page 29, No. 197, var. Lintnerii, for 3rd. Rep. N. Y. St. Ag. Soc, read 3rd. Rep. Ins. N. Y. Page 30, No. 199, for Furcillata read FurciUata. Page 30, No. 207, for Modesta, etc., read Monima, Cram. 4, 387, F, G, 9 . Hah. — Texas, (coll. Boll.) I submitted this species to Mr. Butler and he pronounces it to be Monima. The Florida species in my collection is a different thing, and yet un- determined. Page 33, No. 234, for West.-Hen., read West.-Hew. Page 34, No. 243, for West.-Hen., read West.-Hew. Page 34, No. 247, read Tj/ndarus. Esp., var. CaUias, Mead. Page 36, No. 269, for West.-Hen., read West.-Hew. Page 46, No. 374, for Mhiehaha, read Minnehaha. Page 47, No. 377, read Antxgon. DIURNAL LEPIDOPTERA. 69 On the Classifieatioii of Btitterlljes, with si>eoial reference to the position of iUv ICQi'l'TI^S or Swsdlow-tails. BY SAMUEL H. SCUDDKH. The family groups into which butterflies should he jiriiiiarily divided have been variously given, all the way from two to sixteen. As the structure of the different stages becomes better known, there is an increasing proof of the intimate connection of many of the groups formerly believed very distinct, and it is generally conceded by the better class of recent writers, that there are only about half-a-dozen principal groups. My own study of their structure and transformatiou leads me to divide them primarily into four families, viz. : The bru.sh-fo.)ted butterflies or Nymphales (=: NyniphalidiB Bates.)* The gossamer-winged butterflies or Rurales (= Erycinidai et Lycaenidne Hates.) The typical butterflies f or 1\\pilionipes (= Papilionidii) Bates.) The skippers or UBBl.^or-i^E (= Hesperidae Bates.) The family nature of the last group has never been questioned by any who look upon the butterflies as composed of more than one family ; indeed their distinction from the others is so marked that some have considered the remainder of the butterflies their equivalent in value; that is, they divide all butterflies into only two families or tribes. I Doubtless, these skippers first separated from the common stock and never d;!veloped to a high degree, since they still remain by far the lowest of the gmup and are in many points more closely allied to some of the higher moths, than they are to any other butter- flies. They are peculiar for their mbust body, broad head, hooked antenna), which are widely separated at base, great length of tongue, *I have given in parenthesis the corresponding " family" groups of Bates (Journ. Eut. I, 219 — 20), since tlie arran.i;ement here proposed agrees more closely with his than with that of any other naturalist. The only exception to complete general equivalency is his separation of the Rurales into two families (whereas I look on those divisions as sub-families), and his placing the Liby- theidfe as the hisical (as Swaiii^on called them "true butterflies,") because they include the commonest butterflies of the north teinjierate zone, the white and yellow butterflies, or the insects most familiarly known as butterflies to the world at large. J See the writings of Geon"roy, Fabricius, Leach, Dalman, Latreille, etc. TRANS. AMER. E.NT. SOC. VI. (10) JlNt:, 1S77. 70 SAMUEL H. SCUDDER. • small wings, and the presence of a middle pair of spurs on the front and hind legs, in the former developed as a curious foliate epiphysis; their eggs are broadly truncate spheres, sometimes ribbed ; their cater- pillars have a large head, with a very thick skull, a very contracted neck formed of the first body-segment, and bearing a corneous shield above, and a body covered with minute papilkie, bearing microscopic hairs ; their chrysalids are smooth and uniform like the pupae of moths, but in rare instances (e. g. Calpodes*), are pointed in front. The other three families appear to have diverged simultaneously from each other shortly after their common separation from the skippers. This latter family is the most homogeneous ; each of the others comprises a considerable variety of structural types, for which it is diflScult, in each case, to find a common expression. The Papilionides however, may be known by the squareness of the head between the eyes, the entire inner margin of the eyes, the diminutive size and frequently lamellar structure of the prothoracic lobes, the acuteness of the front of the nieso-scutcllum, and the notched or produced, instead of entire, dorsal margin of the eighth abdominal segment of the male; in the entire inner margin of the eye, they agree altogether with the Nymphales, but from these they may also be distinguished by the presence, as in the skippers, of a fourth median nervule on the front wing, or by its entire absence; for in the Nymphales it is always transferred to the sub-costal nervure. There are many other particulars in which the sub-fixmilies of Papilionides may be distinguished from all other butterflies, but in which they do not agree together ; the same is also true of the sub-families of the higher groups. The eggs of Papilionides, so far as known, are either nearly globular and smooth, or are ribbed and much higher than broad, and in these respects diff'er, so far as I am aware, from very nearly all higher butterflies.'!' The egg of Parnassius however, is an extraordinary exception, resembling that of the Lycsenids described below. The caterpillars are never spined, but either approximately naked, pilose, or provided with fleshy tubercles or filaments. The chrysalids are hung by a loose girt, and are the only girt chrysalids which have the head armed in front with a single centra) prolongation or a pair of prominent tubercles. One characteristic mark of the gossamer-winged butterflies is their *See Dodge in The Rural Carolinian III, 594, (1872). fThe egg of Danaida Flexij^pus and, approximately, those of Brcuthis, come near the latter class. DIURNAL LEPIDOPTERA. 71 ordinarily small size, and to this we may add the tenuity and general delicacy of their structure; their head between the eyes is usually very narrow or twice as high as broad, so that the eyes are approxi- mated, and infringe to such an extent upon the antennal scrobes, as to excise to a greater or less extent their own inner margin ; the meta- thorax is less distinctly separated from the meso-thorax than usual ; the front wings are pretty uniformly broad, rarely as elongate as in other iamilies, and both wings are entire, excepting when the hind pair is tailed ; in the heteromorphous character of the fore legs in the two sexes they may be known from all other butterflies, excepting the very lowest Nymphales (Libytheidae), which, on that account, have been placed with them by Bates and some recent authors. The transformations of so few of the higher group of this family are known, that it is impossible to make any general statement con- cerning them. But the eggs of the Lycaenids or lower sub-family are peculiar for their echinoid or turban-shaped, heavily pitted form, in which respect only Parnassius appears to agree with them. The caterpillars are remarkable for their onisciform shape and gliding motion, their nearly aborted pro-legs, the minuteness of their head, and its power of complete concealment within the first body-segment; they are hairy, but never bear spines or filaments. The chrysalids are short and compact, completely rounded and closely attached to the surface by a girt; the cremaster is wanting, and the hooks seated directly upon the last abdominal segment, which, like the head, is completely carried over to the under surface of the body. Doubtless the early stages of the Erycinids agree to a certain- extent with those of Lycaenids, but not altogether, for the only egg known (that of the European species), is described as almost globular and smooth ; the head of the caterpillar cannot be so completely with- drawn, and the body is furnished to some extent with filaments or possibly spines and only appears subordinately onisciform. Still, so far as known, the early stages of Erycinids agree better with those of Lycaenids than with any other butterflies, and these features, with the compact form of the chrysalis and its closely girt attachment to its support, "*" together with the opposite development of the fore legs in the two sexes of the imago and the close siiiiilarity of all other points in the structure of the perfect ibrm, including tlie absence of the nervule attached in all other butterflies, excepting the Pierids, to ♦According to Bates, the pupa of Stalachtis, one of the highest Erycinids, i " secured rigidly by the tail in an inclined position, without a girdle ;" this mod of suspension forms a natural passage to the freely hanging Nymjihales. 72 SAMUEL H. SCUDDER. the end of the median ncrvurc of the fore wings, show that no family distinction should be drawn, as has usually been done, between these two groups.* In the form of the head, the highest family agrees very well with the l^apilionides, although as a rule it is considerably narrower, stand- ing in this respect midway between the two middle families; the inner edge of the eye is entire; the prothoracic lobes are moderately large and tumid, and the uervule, attached to the end of the median nervure of the fore wing in the lowest butterflies, is here transferred to the sub-costal nervure, becoming a second inferior sub-costal nervule, which does not exist as such in any other family. Its presence in all the members of this family warrants the restoration, by Bates, of the ancient limits of this group, which, of recent years, has been torn by systematists into so many fragments. It does not however confirm his removal of the Libytheans to the next lower family, although in one of the most prominent and important features of the Nymphales — the atrophy, though still unequal, of the fore legs of both sexes — the Libytheans show their close relationship to the Erycinids. since the legs of their females are normal. The eggs of the brush-footed butterflies are always either reticulate or ribbed, seldom greatly higher than broad, never smooth, but occa- sionally so heavily reticulated as rather to be termed pitted ; in these cases however, the division walls are extremely thin and never, as in the Lyca^nids, coarse. The caterpillars are pilose, spinous or armed with filaments or tubercles. The chrysalids never have a perfectly even contour, but show at least some rounded or angulate projections; and usually the head is armed, more or less conspicuously, with a pair of projecting tubercles; they are invariably suspended by the tail alone, or rarely are not suspended at all. By means of the diagram given on the next page^j" I have attempted to exhibit the apparent relation of the difi"erent groups to each other; the position of the main branches and their divisions is supposed to indicate, on the basis of existing affinities, the relative time at which * Cf. my paper on the structure and transformations of Eumceus Atala. Mem. Bost. Soc. Nat. Hist. II, 431 seq. (1875). f Explanation of Diagra>[. — A, Brush-footed Butterflies, Nymphales. B, Gos- samer-winged Butterflies, Rurales. C, Typical Butterflies, Papilionides. D, Skip- pers, Z7r6icote. 1, Satyrs, Prae^ores. 2, Danaids, i^cs^iui. 3, Helicon ians, ITeZt- conii, 4, Nymphs, Najades. 5, Snout Butterflies, Hypati. 6, Erycinids, Vesta- les. 7, Lycaenids, P/e6eu. 8, Pierids, Z>anat. 9, Swallow-tails, ^^wi'ies. 10, Par- nassians, Parnasii. 11, Large Skippers, ITes^eritfes. 12, Small Skippers, Astyci. 13, Castnioides. DIURNAL LEPIDOPTERA. 73 74 SAMUEL H. SCUDDER. the different groups diverged from each other or from the main stem ; and the height which each branch attains, the relative perfection of the highest members of that group. It is of course impossible to re- present this with any accuracy on a flat surface; for one may properly conceive of a group only as a mass, composed of branches springing from a central core. The Equites and Ephori are thus brought at opposite extremities of the tree, whereas they are closely related to each other and disagree with all other groups, in the retractility of the head of the caterpillar;* this relationship however is indicated by each occupying the lowest twig of the branch on which it is seated, and both branches being closely connected at their base. The striking and unique peculiarities of certain groups is shown by their extreme divergence from the main stem : thus the Equites or Swallow-tails stand apart from all others in the possession of dorsal osmateria in the caterpillar and in certain special characters of the butterfly, shortly to be mentioned ; the Ephori or Lycasnids at the opposite extreme, in the onisciform nature and diminutive heads of their caterpillars ; the Castnioides among the skippers by their close approach to the moths jf and the Satyrs (Oreades), by the forked tail of their caterpillars; the superficial afiinity of this last group to the skippers is also indicated on the diagram by the directness of their line from the very base. It is one of the most curious features in the structure of butterflies that its highest and lowest members should resemble each other in so many minor points. For instance, the tone of coloring and pattern of markings on the wings of many Satyrs, as well as the position and general nature of the sexual marks on the front pair of some males, find a close counterpart on the wings of some skippei-s ; so also the chrysalids of Satyrs are among the simplest, most rounded and compact in the whole family, approaching in this respect the lowest butterflies; nevertheless in all the prime features of their organization, the Satyrs outrank all others or divide the honoi-s with the Danaids. The Libytheans or snout butterflies are placed at no great distance *I do not know that attention has ever been drawn to this feature in the caterpillars of Equites, since the time of Denis and Schiffermuller, who say (Syst. Verz. Schmett. Wien, 161,-1775), " Diese Raupen . . . ziehen den kleinen stumpfen Kopf gern unter den ersten Ring zuriick." When at rest the head is nearly half concealed by the extended epidermis of the first body-segment, and can be compared with nothing in other butterfly caterpillars, excepting the complete retractility of the head in Lycsenids. I Cf. Riley's admirable paper entitled Notes on the Yucca Borer (Trans. Acad. Sc. St. Louis, III, 323 seq.)j see also his Reports on the Insects of Missouri, VIII, 169 seq., IX, 129. DIURNAL LEPIDOPTERA. 75 from the Pierids, on account of the close resemblance of the cater- pillars of the two groups ; their position far removed from the other brush-footed butterflies is intended to mark their anomalous structure, while their slight elevation above the Erycinids signifies the nearly equal development of the fore legs in both sub-families. The Par- nassians resemble the Lyctenids in the egg state, and to a certain extent the Erycinids in their larval state, and are therefore turned toward the Gossamer-winged butterflies, though belonging closely with the Swallow-tails. The resemblance of the egg of the Hesperides and Pierids on the one hand and of the smaller skippers and Swallow-tails on the other is shown by the direction of the branches of the lowest family. By this scheme, all the spinous caterpillars are brought to- gether upon one side, and near together, and all the heteropodous butterflies are carried above the middle. It may be remarked that, with slight variations, this distribution of the groups of butterflies, founded upon the relative perfection of their organization is generally accepted by the best investigators; and is founded upon a mass of minor features which will not be recounted here. A single exception should however be made in regard to the typical butterflies, whose position is the point of greatest dispute, many continuing to place them highest of all on account of the beauty and special perfection of character of a single member of that family, the group of Swallow-tails. Nothing can exceed the gorgeousness of the huge Ornithopteras of the ICast Indies, and the most queenly of our own butterflies are their nearest relatives. They also show a unique development, as has bjen thought, in the diminutive size of the palpi of the imago, in the possession of four branches to the median nerv- ure of the front wing, and in the dorsal and extreme development of osmateria in the caterpillar. But there is no reason whatever for con- sidering the brevity of the palpi or the extra branch of the median nervure marks of high organization. On the contrary, in these very points they resemble the skippers more closely than they do any other butterflies, and these features are therefore traces of their low organ- ization. Indeed the terminal median nervure of the Swallow-tails is the most unstable in its attachments of all the nervules of the fore wing; it appears to belong decidedly to the median nervure only in the Swallow-tails, but there can really be no doubt that it is a part of the same nervure in the skippers; while in the Nymphales it has simply transferred its allegiance to the sub-costal nervure ; and if it exist at all in the Rurales, which we doubt, it is the nervule usually connected with both nervures by an equally obsolete vein, but be* 76 SAMUEL H. SCUDDER. longing properly to the sub-costal, of which it is the only inferior branch. The possession of the peculiar scent organ, however, is unquestion- ably a mark of high development. Wallace writes :* " When we con- sider this singular apparatus, which in some species is nearly half an inch long, the arrangement of muscles for its protrusion"}" and retrac- tion, its perfect concealment during repose, its blood-red color, and the suddenness with which it can be thrown out, we must, I think, be led to the conclusion that it serves as a protection to the larva, by startling and frightening away some enemy when about to seize it, and is thus one of the causes which has led to the wide extension and maintained the permanence of this now dominant group. Those who believe that such peculiar structures can only have arisen by very minute successive variations, each one advantageous to its possessor, must see, in the possession of such an organ by one group, and its complete absence in every other, a proof of a very ancient origin and of very long-con- tinued modification. And such a positive structural addition to the organization of the family, subserving an important function, seems to me alone sufficient to warrant us in considering the Papilionidae as the most highly developed portion of the whole order, and thus in retaining it in the position which the size, strength, beauty, and general structure of the perfect insects have been generally thought to deserve." It is unphilosophical, however, to accord high rank to any group for a single characteristic, and especially when in nearly all its other important peculiarities, it evinces its low origin. Moreover extensive fleshy organs do occur in other groups. j; Guenee discovered them on the abdominal segments of the caterpillars of certain blues, § and caruncles, as they are called, entirely similar to osmateria in function, general structure and degree of development, occur in single genera of beetles, II while totally absent from their nearest allies; yet nobody « Wallace, Natural Selection Am. Ed. 1.35. It may be remarked that in his recent work on Geographical Distribution, Wallace has abandoned his former position and accepted the arrangement proposed by Bates. t Protrusion \s probably effected by mere contraction of tbe body-walls, which fills the osmateria with the fluids of the body. X I have elsewhere maintained that the ventral sae on the first body-seg- ment of butterfly larvae is essentially homologous with the osnjateria. See Psyche I, 168. ^ Ann. Soc. Ent. France, (4), VII, 665 seq. (1867). |] Malachius et al. See Siegel, Ueber den Ausstiilpungs— Apparat von Mala- chius und rervandten Foruien 8'^ Hannover, 1873. DIURNAL LEPIDOPTERA. 77 on that account claims for thorn a high rank. In the larva of Cerura we find a much more extraordinary special developu)ent than the caterpillars of the Swallow-tails can boast; the anal prologs become long, cylindrical tubes, extending backward and upward, from out of which when provoked, the caterpillar thrusts a highly colored and banded fleshy tentacle, with which it lashes its body to frighten away intruders. Yet in other points of its structure it perfectly agrees with its kindred. Then again if we examine the lips of the closed osma- teria of the Swallow-tails, we shall find them of a corneous nature, resembling nO other feature in butterfly larvae than the chitinous dorsal shield on the first segment of the caterpillars of skippers ; we have therefore in the osmateria themselves indications of a low origin, a relationship with the skippers which most other points in the struc- ture of the Swallow-tails exhibit. The recurved club of the antenna recalls most strikingly the structure of the antennal tip of the higher skippers* and are unlike those of any other group of butterflies. The inner border of the hind wing also is folded longitudinally just as it always is in the skippers and rarely in other butterflies ; moreover this fold is utilized in many males for the concealment of peculiar sexual hairs, and thus becomes very similar to the costal fold on the fore wings of many male Hesperides, and quite unlike anything else in other butterflies. ]5ut perhaps the most striking point of affinity be- tween these two groups lies in the possession, on the front tibiixj, of the same characteristic foliate epiphysis, which is wanting in all other butterflies ;f this, like the possession in skippers of two pair of spines on the hind tibiae is certainly a mark of degradation, by which they are allied to the lower families of Lepidoptera. The eggs of the Swallow-tails, so far as known, are subspherical with a flattened base and almost absolutely smooth, in which they are unlike the eggs of any other butterflies excepting those of the Astyci among the skippers (and excepting, perhaps, that of Nemeobius), while those of the Pierids have closer resemblance to the eggs of Hesperides. J We find there- fore that in the very peculiarities of their structure wherein they depart from the higher butterflies, they are most closely related to the skippers. But again the Swallow-tails are universally conceded to be so closely allied to the Pierids that they are invariably placed next them ; con- * Compare, for example, the autennse of Iphiclides Ajax and Sespcria ruralis. t Cf. Speyer, Oken's Isis, 1843, 166, X See my paper on the two principal groups of UrbicoljB. Bull. Buff. Soc. Nat. Sc. I, 195—6. TRANS. AMER. ENT. SOC. VI. (11) JUNE, 1877. 78 SAMUEL H. SCUDDER. sequeutly if the Swallow-tails are placed highest in the scale, the Pierids must go with them; nobody questions this; yet the Plerids 2iOHsess not a single one of the characteristics by which a high rank is claimed for the Swalloio-tails. Commentary upon this is needless. Further than this, in several features now to be mentioned, we may trace a regular progression in passing from the lower to the higher butterflies. These features indicate with little doubt the actual pro- gress of events in the geologic history of higher lepidopterous life, and leave a record of advance which is completely falsified by re- moving the Swallow-tails to the summit of the order. Attention has been drawn to one of these features by Bates, who, at the same time proposed one of the most rational systems yet advanced ;* it has how- ever been known and used in dividing butterflies since the time of Linne and Greoff"roy.f I refer to the structure of the legs, where fundamental distinctions occur among butterflies. In the lowest family or skippers, as in the moths, all the legs are developed to an equal extent; they only differ in proportional length. In the Swallow-tails and in all the other members of the family of Papilionidte this also is true. But the moment we leave these two lower families, a change appears in the front legs and progresses regularly. In the gossamer- winged butterflies all the legs of the females are alike, but the front pair of the male is variously aborted ; in the Lycjenids the tarsi of this sex have lost the terminal claws and are densely spined beneath ; even within this group we can trace gradations, the claws being first replaced by a single curving spine, and then by a pair of straight spines only a little longer than the others; in the Erycinids, the tarsi are spineless, and the joints are reduced from five to two or even one. In the highest family, the brush-footed butterflies, atrophy of the fore legs has reached both sexes, so that they are practically useless, al- though the atrophy is much more excessive in the male ; the legs of the female are greatly reduced in size, and lack the terminal arma- ture; while in the male of the highest groups, they are exceedingly diminutive, and the tarsi are reduced to a single minute joint. Now when we remember that this atrophy aff"ects only the legs borne by * Journ. Eut. I, 218—22. (1861); II, 175—77, (1804); Traus. Linn. Soc. Lond. XXIII, 515, (1862). fSee particularly Dalinan's admirable paper; Forsok till systematisk Upp- stiillning af Sveriges Fjarilar, (Vetensk. Acad. Handl. XXXVII, 48 seq. 1816); or the abstract of it in Oken's Isis, (1824, 416 seq.), Ilis classification has been pretty closely followed by his countryman Wallengrea, (Lepidopt. Scand. Rhop. 8*^ Malmo, 1853). DIURNAL LEPIDOPTERA. 79 the first segment of the thorax, and that this very segment and tlii.s only in passing from the low larval stage to the perfect form has be- come greatly reduced in size, we must accept atrophy of these legs as a conclusive mark of high organization. If again we examine the tongue, we shall find, as we pass upward, a regular increase of complication in the structure of the papilla) or organs of taste; at least this is true in the fifty or sixty species I have examined. In the Swallow-tails and their allies, as in the skippers, these papillae are merely minute distant tubercles, situated near the tip, half a dozen or less on either side, seldom rising much above the surface. In the gossamer-wiuged butterflies they are longer, much more frequent and often mammilate at the tip. While in the brush- footed butterflies they are crowded closely together, are often half the breadth of the tongue in length and frequently trifid or tri-mammilate at their tip. Finally, how do the modes of transformation affect the question ? The moths, as a general rule, pass their chrysalis stage in a cocoon of silk or earth, in which they lie loosely in a horizontal position. The skippers also undergo their transformations in a cocoon, a light fragile aff^air it is true, but still unquestionable a cocoon ; one or two other butterflies also make a slight coco'in, wherein to change to chrysalis ; and these few instances, such as Parnassius and Zegris, belong exclu- sively to the same family as the Swallow-tails, though not to the same precise division.* The skippers, however, do not lie loosely in their cocoons, as do the pupae of moths, but spin at either end a Y-shaped thread, into the centre of one of which they plunge their hooked cremaster, while in the upper loop of the other they rest their body. Now when we reach the next family, the typical butterflies, the cocoon, save in the exceptional instances mentioned, is lost, while the silken attachments of the chrysalis still remain, modified to suit the circum- stances. Instead of the Y-shaped band, wherein to plunge the cre- master, a carpet of silk is woven upon some branch, into the midst of which the hooks are thrust, while the omission of the stem of the other Y leaves a loop or girt about the middle. To accommodate the chrysalis thus hung next a solid substance, instead of in the middle of an oval cell, the segments of the abdomen must curve upward to- * Mr. W. II. Edwards (Trans. Am. Ent. Soc. VI. 3), endeavors to explain this cocoon in Parnassius as a " biological necessity" from its exposed position on Alpine heights; probably he was not aware of the occurrence of the cocoon in Zegris, which is common on the plains of Southern Spain. See Rambur, Faun. Ent. Andal. II, 247, pi. U, fig. 4. 80 SAMUEL H. SCUDDER. ward the ventral line (for the chrysalis lies upon its back), and thus the ventral outline becomes straight, while the dorsal is strongly arched. This condition of things is perpetuated and often intensified in the next higher family, the gossamer-winged butterflies, which diflfer in this respect from the typical butterflies only in the closer binding of the girt around the middle. In the highest family, the brush-footed butterflies, the girt around the middle is lost and the chrysalis hangs suspended by the tail alone. We see therefore a regular progression from the lower to the higher butterflies, in the loss first of the cocoon, next of the girt ; and as if this were not enough, some of the highest butterflies* have even lost the last remnant of silk and fallen to the earth, where, amid stubble or in crevices in the ground, they undergo their transformations without more ado. As if moreover to show that this suspension of the chrysalis by the tail alone is a stage beyond that of hanging by tail and girth, we have a clear proof that all the sus- pensi, as Boisduval happily calls them, have passed through the stage of the succincti, since the straight ventral surface of the abdomen, as- sumed perforce by the succincti, when they left the cocoon stage and became attached to hard surfaces, still remains in the chrysalis of the hrush-footed butterflies, lohere it no longer serves any "puvpose, — as clear and striking an indication that the suspensi outrank the succincti, as that the pupa is higher than the larva. * Oenei's semidea, Agapetes Galathea, Nyiha Oircc and Eum&nis Semele. AMERICAN COLEOPTERA. 81 Synopsis of (he Ooiiora and Species of the Staphyliuide tribe TACIIYTOKINI of the United States. BY GEORGE II. HORN, M. D. This tribe contains those genera and species in which the pro- thoracic spiracle is not covered by the side pieces and the antennae inserted under the side margin of the head, behind the base of the mandibles and usually immediately in front of the eyes. There is at times a little trouble in deciding positively concerning the insertion of the antennje, as in certain short-headed BoUtohius the antennae become as it were pushed upwards and the line of de- marcation between the present tribe and the group Quedii of the next tribe becomes partially obliterated. As certain heretofore unused characters become prominent in the succeeding pages, each portion of the body will be taken up by itself so that special characters may be mentioned and explained, and the differences and resemblances of genera shown before any tabular arrangement is given. Head broadly oval in most genera, transverse in IJijiwcyptini^ elongate to a variable degree in BoUtohius. The sides beneath the eyes distinctly margined, Bolitobii, or without margin in the other groups. Antennae eleven-jointed gradually broader to apex, ten-jointed in Hypocypti and with the last three joints stouter or forming a club. Filiform in most genera, slightly compressed in others or slender, loosely articulated, ten-jointed and verticillate, Hahroceriis^ (fig. 30,* a). Maxillary palpi usually slender, four-jointed, the first very small, second and third equal in length, the latter always stouter, fourth variable, as follows ; slender, elongate, acute at tip, Ilabrocerus, (fig. 35, d); subulate, Mycetoporus, Conosoma, Tachyporus and the Hypocypti, (fig. 35, c) ; conical, Bryoporus, (fig. 35, b); filiform, Tachinus, BoUtohius, Cilca, Physetojwrus and Erchomus^ (fig. 35, a). ScuTELLUM visible, triangular; concealed in Hypocyptus and Ana- cyptus. Elytra variable in length, prolonged below the sides of the body *The figure was copied from Erichson and has one joint too many for our species. TRANS. AMER. ENT. SOC. TI. (12) JUNE, 1877. 82 GEO. n. HORN, M. D. in Erchomns and Anacyptnx. Marfjined at the sides and with dis- tinct epipleurfe, except in Trichopsetiius. Abdomen margined in all the genera except Conosomn and Truhop- senius and very feebly in Anaci/pfus. MKSOSTEaNUM qot carinate in most genera, carinate in Ci/ea, Ph^aetoporus. Erchomus, Coiioxoma and i'eeh\y m A))nn/pfm ; flat or feebly concave in Hijpocyptnn ; the coxae rather widely distant Hypo- ci/p/ti^, (fig. 4), contiguous in Hdhroccrua and Trichnpseni'ns^ (fig. 2), and very narrowly separated in the other genera. MetaSTERNUM, prolonged in front separating the middle coxfc, in Hi/pocj/ptus ; not prolonged between the coxne in all other genera. Posterior margin more or less sinuate, rectilinearly truncate in Ana- C7/ptUS, (fig. 3). Posterior cox^li;, free in all the genera except Irichopxem'us, (fig. 2), in which they are connate with the metasternuui, form variable, usually with a broad expansion concealing the first and purt of the second abdominal segments, which is parallel or narrowed externally; articular plate small not concealing the trochanter, rarely Aiuin/ptus large, concealing the trochanter and part of the femur. In Ilahro- cerus the posterior coxae consist of the triangular plate merely which conceals the trochanter, (fig. 30). Posterior trochanter, moderately long, usually truncate at tip, rarely broadly oval, TrichopHeniuf!, (fig. 2). Femora, with several setiform hairs from the lower margin at apex frequently absent from the anterior and posterior and entirely wanting in the ilypocypti. TiBl.B usually spinulose, except in Iljjporijptus and Anan/pfiti^, the anterior tibiae of Coiiosoma not spinulose but margined with very short closely placed setae. Tibiae at tip fimbriate with unequal spin- ules except in Cono^omn^ Brijoporua and some Mtjretoporas in which the spinules are short, ecjual and closely placed. • Terminal spurs two in number except in Conosonui where there appears to be one only on the anterior and posterior pairs and two to the middle pair except in two species where one only occurs. Tahsi, five-jointed, in the Ilypocypti four-jointed. /Ml of the special characters mentioned above receive greater men- tion under the genera in which they occur, one however requires extended notice here. , Under the side of the head in the Bolitobii, (fig. 31), may be seen a distinct groove litnited beneath by a ridge which starts at the sides of the buccal opening directly opposite and continuous with the lower AMERICAN COLEOPTERA. 83 edjre of the niautlible, runiiiiiii- backwards in a nearly strai/u//iiin^. I have seen the ridge in some Alaeocharini also, but an investigation of the characters of other tribes not being pertinent to the present es.say will be left for a future occasion. From the importance of several characters noticed in the preceding pages it seems necessary to divide the genera into groups or sub-tribes. This h.is already been ])artially dune by Fauvel in the '' Fauna (lallo- llhenane," in which three groups are estal)lished, one of which I pro- pose to again sub-divide, based on other characters than those in the following t.ible. The following is the method of sub-division : Po.sterior cnxne altaiiiing the side pieces of the iiietathorax; usually expanded into a [ilate the free edge of which conceals the first and a portion of the second segment. Antennae ten jointed, tarsi four-jointed Hypocypti. Antennre eleven-jointed, tarsi live jointed. Head not niaigined Tachypori. Head margined at the sides Bolitobii. Posterior coxje triangular. Antenn.ie ten- tarsi five-jointiMl. Head not margined beneath Habroceri. f Since the above was written Dr. Leconte has noticed the existence of the ridge on the underside of the head in Cicindelidte, and «n examination made at once showed that while it exists in all our genera of tiiat family it is not present in any of our CarabidjB. Should tliis hold good vviili genera not in our fauna it gives an additional character for separating the two families. 84: GEO. H. HORN, M. D. The second group contains those genera which may be considered central; that is, while they have evident affinities with the surround- ing groups there is no relationship with any of the adjacent tribes. The llypocypti have considerable affinity with the Alajocharini while the Bolitobii and Habroceri lead in different directions toward the Quedii, the first by the margined head: the second by the structure of the posterior coxae which resemble the form seen in Tanygnathus and IletcroOiops very much more than they do any of the genera of the present tribe. In all of the books the length of the elytra compared with the body, whether they extend merely to the hind coxaa or are prolonged so as to cover one or two abdominal segments, has been made use of in the separation of the genera allied to BoUtohius from the others. This seems entirely illusory and above all unnatural when genera evidently very closely allied like Hahroceriis and TruhopJu/us are thereby separated even if they are again made to appear adjacent by an adroit manipulation of a table. (See Erichson, p. 28). The genera of the groups are as follows : HYPOCYPTI. Middle coxfe widely separated; mesosternum flat or sliglitly concave in front. Antennae moderately long, with the last three joints forming a loose club. Posterior coxse free, with a small articular plate. Abdomen feebly margined. (Fig. 4) Ilypocyptus. Middle coxae narrowly separated; mesosternum carinate iu froat. Antennae short, last three joints rather suddenly broader forming a rather compact club. Posterior coxae free, with a large triangular articular plate conceal- ing the trochanter and the base of the femur. Abdomen feebly margined. (Fig. 3) Anacyptiis. Middle coxae contiguous; mesosternum very narrow and deeply depressed be- tween the C0X8B, in front flat. Antennae? Posterior coxae connate with the metasternum the articular plates rounded arising from near the front of the metasternum not covering the trochanter which is broadly oval. Abdomen not margined. Elytra not margined. (Fig. 2) Trichopsciiius. These characters really seem to have more than generic value, but the very few genera and the limited observation possible on the unique representative of one of them forbid at present anything more being done. TACHYPORI. Abdomen margined; tibiae fimbriate at tip with unequal spinules. Mesosternum not carinate. Maxillary palj)! filiform TachinilS. Maxillary palpi with last joint subulate Tacliyporus. AMERICAN COLEOPTERA. 85 Mesosternum carinate; maxillary palpi filiform. Epipleurae horizontal; elytra not extended. Mesosternum very feebly carinate; anterior tarsi % simple Cilea. Mesosternum with strong crest; anterior tarsi % dilated. Pliysetoporus. Epipleurre nearly vertical, elytra prolonged at the sides beyond tlie body. Mesosternum strongly carinate; anterior tarsi % simple. ..Ercliomus, Abdomen not margined; tibise fimbriate at tip with short, equal, closely placed spinules. Maxillary palpi subulate; body finely pubescent ConoNonia. CiLEA {Lrucopari/pJiits) is the only genus about which there is any difficulty. The mesosternum is so feebly carinate that it might be placed next to Tachinus, from which the simple tarsi of the male and the longer first joint of the hind tarsus will distinguish it. BOLITOBII. Maxillary palpi filiform Rolifobiiis. Maxillary palpi with last joint conical, acute Itryoporii!^. Maxillary palpi subulate Itlycetoporus. The tibiae of Bolitohius are fimbriate with unequal spinules at tip, Bryoporus the spinules are short, equal and closely placed, as far as our species are concerned, while in Mycetoporus a portion of the species have one structure while the rest have the other. HABROCERI. Two genera Hahrocerus and Trichojj/tyus, belong to this group, the first only occurring in our fauna. The differences between the two seem to be of extremely feeble importance, the elytra of the first are longer than the breast while they are not longer in the second. By this character alone Erichson and othei's really widely separate these genera but by an ingenious arrangement of the synoptic table they are made adjacent and again (in the body of the work) separated by Tdchuius. The similarity of the hind coxae of Hahrocerus and Tanygnathus* has already been mentioned. The latter genus was placed by Erichson in the present tribe but has been removed to the sub-tribe Quediini for very good reasons. HYPOCYPTUS Mann. Antennae ten-jointed, first two joints robust, three to seven small very gradually longer and broader, eight to ten forming a rather loose elongate club, slightly compressed, each joint longer than that which *T. coi.LARis, Er. Gen. Staph, p. 289. — Specimens agreeing with the descrip- tion of this species have been captured by Dr. E. A. Schwarz, in Florida. 86 GEO. H. HORN, M. D. precedes. Maxillary palpi with third joint rather stoutly fusiform, fourth small, subuliform. Mesosternum slightly concave (not carinate), receiving the anterior coxa; when contracted; middle coxae rather widely distant. Epipleurse narrow, horizontal, elytra not projecting downwards beyond the body. Tarsi four-jointed. l\«terior coxae not connate with the metasteruum, articular plate small not covering the femora. Head broad, eyes moderately prominent and coarsely granu- lated. Scutellum concealed. Body capable of contraction but not to the extent of Liodcf.^ etc. From the above description it will be inferred that several of the most important characters of the genus have been overlooked. The rather widely separated middle coxse and the slightly concave meso- sternum without carina seem to be very important characters and give the species of this genus their power of contractility. The posterior coxae preserve the general characteristics of the tribe, there is the usual expansion partially concealing two abdominal segments and at- taining the metasternal side-pieces, the articular plate is small, not concealing the trochanter and a part of the femur. The articulatioa between the coxre and the metasteruum is free. Two species occur in our fauna: Legs and an ten use palo testaceous Ziogleri. Legs piceous, outer joints of antennae piceous 4^^i*OtcIiii. H. Ziegleri, Lee. — Black, moderately shining, margin of thorax nr.r- rowly i)ellucid, legs and antennae testaceous, surface sparsely clothed with greyish pubescence. Head very minutely and sparsely punctulate. Thorax nearly three times as wide as long, narrower in front, base broadly arcuate, surface sparsely minutely punctulate, sides near base narrowly pellucid, hind angles sub-rectangular. Elytra each one wider than long, convex, sparsely punctured and pubescent. Abdomen S])arsely punctured and pubescent. Body beneath very finely and sparsely punctulate. Legs pale testaceous. Mule. — Sixth ventral deeply triangularly notched, (Erichs.). Female, — Segments simple. The unique female before me was found in Pennsylvania by Mr. Ziegler. In its contracted state it measures nearly .04 inch; 1 mm. It agrees so accurately with the descriptions of /onfjfconu'a that I have doubts of its being distinct. Comparison will be made hereafter. H. Crotcliii, u. sp. Resembles the preceding in most of the characters and differs as follows: Antennjc longer, joints three to seven especially, longer than the preceding species, joints eight to ten also more elongate and more distant, color testaceous at base gradually darker to tip. Legs piceous. Hind angles of thorax obtusely rounded. Elytra more distinctly punctured. Length .04 inch; 1 mm. AMERICAN COLEOrXERA. 87 Miilc. — As in loiifficorni)!, first joint of anterior tarsus distinctly dilated. I have seen but one specimen, collected by the late G. R. Crotch in British Columbia. AXACYPTIS n. g. AnteniKC short, ton-jointed, fir^t two joints stout, joints three to seven foriuin^j a rather close f'unicle with the joints gradually wider, last three joints forming a rather sudden club of elongate oval form, the first joint conical, second transverse, the terminal oval at tip and pubescent at its apical half with rather long pubescence. Maxillary palpi with the first joint very small, second moderately long and slender, third elongate oval, truncate at tip, fourth slender, subulate. Eyes moderately prominent, rather coarsely granulated. Me.sostornum in front of coxtB short, not concave, distinctly carinate at middle, the coxa; narrowly separated. Metasternum posteriorly rectangularly trun- cate. Hind cox;"e as in Ili/poci/ptus, but with large articular plates concealing nearly half the femur. Klytra expanded beyond the body, epipleura3 broad but vertical. Abdomen very feebly margined. Tarsi four-jointed. A very ren)arkable genus seeming to exhibit some affinity with the Trichopterygidae notably Limuhdas. The joints three to seven of the antennae are conjointly very little longer than the second. We have but one species in our fauna, but several that have been described as lIijpor//ptas from Europe and elsewhere seem to belong here. A. testaceilS, Lei-. — Rufo-testaccous, moderately shining, sparsely pubes- cent, convex. Head broad, smooth, sparsely pubescent. Antennae not as long as head and thorax. Thorax twice as wide as long, convex, very sparsely punc- tured and fiubescent, base slightly sinuate on each side, hind angles sub-acute and sifghtly jtrolouged. Elytra each wider than long, arcuately narrowing to apex; apex conjointly emarginate, surface finely punctured in a very regular quincunx, the punctures connected by very fine oblique lines, sparsely pubes- cent. Abdomen feebly margined, sparsely punctured and pubescent, beneath slightly darker in color. Boily beneath concolorous, metasternum and articular plate of hind coxae punctured in regular quincunx. Length .Oo inch; three- fourths mm. (fig. 3). The resemblance superficially in color and form to Limulodes para- doxus is still further increased under the lens by the peculiar sculpture of the elytra which is nowhere else seen in the tribe. The expansion of the elytra downward beyond the body also resembles that insect, but beyond these points all resemblance ceases. Four specimens from Georgia and three from Arizona, exhibit no specific difi'orences. 88 GEO. H. HORN, M. D. TRICIIOPSEXIUS n. g. Antenn?e normally inserted, first two joints as in ITi/pon/phis ; joints three to ten not seen. Palpi not present. Mesosternum short in front of coxae and obtusely elevated, deeply depressed between the coxas and very narrow so that the coxse are contiguous without the cavities being confluent. Posterior coxae connate with the ruetasternum, the articular plates connate at middle and arising from the face of the metasternum. Elytra not prolonged beyond the body, epipleurae narrow, horizontal. Scutellum visible. Tibiae distinctly spinulose. Hind trochanters broadly oval. Hind tarsi four-jointed, anterior and middle absent in the specimen. Abdomen not margined. Form oblong, depressed, surface glabrous, elytra with three transverse rows of setae. That this genus belongs to the present tribe there can be no doubt from the insertion of the antennae, but it is equally certain that it is a rather anomalous memter. The contiguity of the middle coxae, the absolute fusion of the metasternum and the posterior coxae and the articular plates arising apparently from each side of the middle of the metasternum and even extending forward close to the middle coxae are certainly very remarkable characters. The entire absence of antennae (except the two basal joints), de- prives me of the means of approximating this genus to its allies with absolute certainty. The four-jointed posterior tarsi cause me to place it provisionally near Hi/pocyptns, with the hope that at some future time perfect specimens may enable me to speak with greater certainty. The curious specific character found in the arrangement of the erect hairs on the elytra will enable the insect to be known whenever re- found. T. depressuii^. Lee. — Testaceous, very shining. Head and thorax smooth, shining, absolutely inipunctured. Thorax not twice as wide as long, sub-de- pressed, sides slightly arcuate and a little narrower in front, base truncate, hind angles rectangular. Elytra each quadrangular with equal length and width, sub-depressed, smooth, glabrous, and with three transverse rows of erect setse numbering four or five in each row. Abdomen conical, shining, sparsely setu- lese. Body beneath shining, abdomen sparsely setulose. Length .05 inch; 1.25 mm. (figs. 1 and 2). The legs of this insect are relatively stouter than in any genus of the tribe. From the extremity of the abdomen there project two rather stout corneous processes. The abdomen is however so retracted that I am unable to say whether these are sexual or not. One injured specimen, Georgia. AMERICAN COLEOPTERA. 89 TACIIIXITS Grav. From tlicir superficial similarity the species of this genus are in great confusion in most if not all collections, owing to the fact that the characters which should be relied on for their separation, have been lost sight of by our collectors. The sculpture is remarkably uniform, differing a very little with each species, not sufficiently to be described, yet enough to enable a mixed series to be separated with a very great degree of accuracy by an experienced eye. In this way the sexes must be approximated, if by any accident collections are in confusion. Color is of extremely little value and should never be depended on. The characters made use of in the following tables are drawn entirely iVdUi the variations in form of the last two ventral and the terminal dorsal segments of the two sexes, but befurc giving the table it will be necessary to enter into some explanation of the characters so that they may be properly understood. Male>i. — Anterior tarsi always dilated. The last ventral segment in all the species is deeply divided form- ing processes {/arinise),oi' varying shape, frequently long, slender and decurved, resembling somewhat the forceps of Forficula, often broader in the form of triangular plates. The sixth segment varies also in form and sculpture. In most species the hind margin is notched or emarginate and the surface concave or impressed, the impression in several instances extending on the fourth and fifth segments also. The surface of this concavity in the sixth ventral is sometimes en- tirely filled with very short and stout spinules among which dirt be- comes entangled, so that Krichson and others have erroneously called this a spongy space. In other species this spinous space is of more limited extent and may be confined entirely to the middle of the posterior margin, or entirely absent. In a few species there is no concavity of the sixth ventral. The hind margin of the sixth ventral may be truncate or variously emarginate and with a secondary emargination near the side. In the first eleven species the margin is fimbriate with stiff, closely set spinules forming a comb-like structure, the middle of the edge for a short distance being usually without them. Four moderately long, slender setae belong to this segment, two arising from the surface in the usual position of the ambulatorial setae, while two others more distant arise from the margin. In those species without the pectinate margin, the TRANS. AM EH. E.NT. SOC. VI. (13) JUNE, 1877. 90 GEO. H. HORN, M. D. "sponiry" space may occur, sometimes as a very narrow border alonoj the iniddle of the hind margin and often as a hoof-shaped space usually of small extent. The other abdominal segments present nothing of moment except mfimhriatus and picipes^ in which the first two segments at middle are elevated in a carina. The last dorsal segment has a tolerably uniform structure in all the species, the tip being four dentate, the middle teeth more prominent, the lateral shorter and usually rect- angular. In several species the middle teeth unite forming an obtuse process. The sixth dorsal presents nothing peculiar, the margin is either truncate or very slightly sinuate. J^cmalcs. — Anterior tarsi not dilated. The structure of the terminal abdominal segments is much more complicated and difficult of description than in the males. To render the subject plainer it is well to start with the simpler form which occurs in luridus and nigrkornis. In these the last ventral is said to be entire; it is wider than long, the sides regularly arcuate forming an oval tip. The tip is fimbriate with short, equal spinules, for a distance about equal to a fourth of the entire free edge of the seg- ment, this fimbriate space is limited on each side by a minute tooth bearing a long, slender seta, and half-way between this and the ante- rior angle of the segment is another small tooth bearing a seta. The next modification of this structure arises from the middle of the tip being very slightly notched, separating the spinules into two groups, while the lateral setae arise from two well marked teeth on each side. This is the structure in circumcinctus. Parallel with this modification another occurs in which the lateral teeth become developed into processes, the middle lobe being thus rendered apparently longer although still entire at tip and fimbriate, niinms, debilia. In angustatns the middle lobe becomes more deeply notched and prominent, but the two processes thus formed are still broad and with numerous spinules, the lateral teeth become more acute and longer. From this form the development of the structure found in most of the species can be easily seen. The middle processes become gradually longer and more slender while the spinules degenerate into short hairs, the lateral teeth gradually elongate and become spiniform processes and their setse shorter and more slender. The most advanced species in the slenderness of these processes is probably fimhriatus. From AMERICAN COLEOPTERA. 91 their number the last ventral segment is usually said to be " sis- spinous." The last dorsal however undergoes the most important changes, all however traceable to the development of a primary simpler form. The simplest type of structure seems to be that of marnlicoUiii, in which the last dorsal is deeply divided at middle forming two tri- angular processes broad at base, acute at tip. The first modification of this appears in limbatus, iu which these processes become more slender and between them appears an oval plate acute at tip and about half their length. This middle lobe next becomes elongated so as to equal the lateral lobes and is bifid for a short distance at tip {frigidus), or becomes cleft entirely to base forming slender processes, similar to those at the sides. These in turn become one-fourth shorter than the lateral processes although slender, as in migustatus and several others. As these processes become still shorter they also become broader and finally unite forming a trapezoidal plate acutely notched at tip as in fimhriatua. The next change is in memnuvius in which the plate becomes narrower, more elongated and with a small notch at tip, and finally it becomes as long and nearly as slender as the lateral teeth with the tip acutely divided as in caiutdensis and tacltijporokles the division being at times (iiisfahilis), so minute that the middle process is slender at tip, similar to those at the sides and equal in length. The middle process while remaining slender has a lateral tooth arise on each side, acute and much shorter than the main stem, as is seen in Crofchii The three processes now (instabilis), approximate and finally {nii/ricornis, luritfus, circumcinctuii) unite, being separated at tip by a slight notch and a groove on the upper surface, the middle lobe is prominent and acute in riigricornis and (uridus, or broader and emarginate at tip in circumcinctuii. These sexual modifications of Taciiinus form a very interesting study, without a knowledge of them it is impossible to separate the species correctly. The following tables are based on the characters above mentioned, the males and females being considered entirely apart and independ- ently of each other, although it frequently happens that the one sex of two species may be very similar while the opposite sex is altogether different. 92 GEO. H. nOR\, M. D. The following will readily distinguish the males. Sixth* ventral segment pectinate on its hind margin. With spongy space on the lower face of the segment at middle. Spongy space divided longitudinally, (fig. 5) maeulicollis. Spongy space entire, large. Covering the entire impression of the segment, (fig. 6) seillirilfus. On the centre of the impression only, (fig. 7) ineiiiiionius. Without spongy space, merely a few scattered granular tubercles. Si.xth ventral broadly and feebly emarginate, the spinules forming a con- tinuous series, (fig. 8) tachyporoides. Sixth ventral narrowly and feebly emarginate, spinules arranged in a group on each side of the eiiiargination. Elytra smooth, last dorsal of male normal, abdomen shinin?, very sparsely punctured, segments not impressed, (fig. 9) agilis. Elytra distinctly punctured. L;)st dorsal of male normal, ventral segments not impressed, elytra less coarsely punctured, (fig. 10) aiiglistatlis. Last dorsal of male tridentate, ventral segments four, five, six. dis- tinctly impressed, elytra coarsely punctured, (fig. 11) ». Sixth ventral not concave nor einarginate. Last dor.-ial four-dentate; elytra coarsely and irregularly punctured. C'ir<'iiin<-iiictu!«. Last dorsal three-dentate; elytra coarsely and evenly ))unc'tured. iiilidiiloides. The following; table applies entirely to the females of each species and is intended to be merely supplementary to the previous table, showinjz: Iidw in many eases the femiles ditler considerably while the males are cl sely allied, and at the same time females are here approxi- mated whose males are more widely separated above. Last ventral entire or very nearly so, (fig. 1 7, c) ; last dorsal with the three lobes connate, (fig. 17, b) luridus, nigricoriiis, circumciiictns. Last ventral divided into six processes, usually long and slender. Last dorsal deeply bilobed, (fig. 5,d) iliaculicollis. Laat dorsal trilobed, lobes usually slender, tiie middle one variable, either entire, eniarginate, bifid or trifid. Middle lobe as long as the lateral, its form, slender, with a shorter process on each side, (fig. 24) Crotoliii. slender, tip either entire or very feebly notched, (fig. 25 and 11. d). iiiNtabilis. 4l(>bilis. broader, tip notched one-third toward base, (fig. 21) <*aii:ii«leK. deeply divided forming two slender processes, (fig. S, h)...|>aa'all(>liis, tachyporitidoK, i>i<*i|><'s. f*iinii|ieiiiiiM. repaiKliiK. broad. ti)i broadly triangularly notcbtvl, ((ig. 2((, b) Nt'liWiirzi. Middle lobe shorter than tlie lateral, its form, broadlj' oval, rarely with a very feeble notch at tip, (fig. 22)...liinbatliS. broad, triangularlv notched at tip, (fig. 18, c) fiiiibrial giK. more slender, feebly notched, (fig. 7, b) iiK'iiiiooiiiiiN. deeply divided, foi-ining slender proce.sses, (fig. 0, b) iiii;;iisf atllS, sciiiiriil'iiM, iiiiniiis. addendum. T. lliaoiilicolliM, MiiUlin. — Piceous, shining, entire thoracic margin and sides of elytra jialer. Head black, antennte piceous, four basal joints paler. Thorax very finely alutaceous. Elytra longer than wide, very finely alutaceous and very minutely and sparsely punctulate. Abdomen more distinctly punctu- late than the elytra. Body beneath very sparsely punctured, abdomen more 94 GEO. n. HORN, M. D. distinctly. Legs pale. The sculpture of the upper surface of the thorax and abdomen consists of fine, short, transverse lines, that of the elytra resembling a cellular arrangement. Length .22 — .26 inch ; 5.5 — 6.5 mm. Male. — Last ventral deeply cleft, forming long, slender, curved laeinisej sixth ventral emarginate at middle the outline resembling a brace — ^-v, and with a secondary emargination external to this; posterior margin with equal spinules closely placed forming a comb like structure. Face of segment concave with a granular space at middle divided longitudinally by a smooth line. Last dorsal segment four-dentate, teeth acute, the median somewhat longer, (fig. 5, a, b). Female. — Last ventral six-sj)inous, the two central processes broader than the lateral and fimbriate at tip. Last dorsal deeply divided forming two elongate triangular processes, (tig. 5, c, d). The sexual characters abundantly distinguish this species, super- ficially it resembles a number of others. Occurs in Alaska, (Miiklin); Vancouver, (Crotch). T. sciniriiriis. n. sp. — Kufous, shining, elytra with darker cloud poste- riorly. Head black, antennse dark rufous, four basal joints paler. Thorax uni- formly rufous. Elytra slightly longer than wide, sculpture of upper surface as in maculicollis. Body beneath and legs paler rufous. Length .24 — .30 inch; 6—7.5 ram. Male. — Last ventral deeply cleft, laciniae shorter and less curved than in maculicollis ; sixth ventral concave, the concavity densely covered with short spinous granules, hind margin sinuous with spinules on each side of middle, lateral portion of margin truncate. Last dorsal as in maculicollis, (fig. 6, a). Female. — Last ventral similar to that of maculicollis. Last dorsal trilobed, the middle lobe shorter than the lateral and deeply divided, forming two slender processes, (fig. 6, b). Occurs at Lake Tahoe and Gilroy (Crotch), California. T. iiieni nonius, Grav. — Uniformly piceous, moderately shining. Elytra slightly longer tlian wide, sculpture as in maculicollis, punctuation of elytra somewhat more evident. Underside paler than above, legs testaceous. Varies in color to ]>iceo-testaceous from immaturity. Length .22 — .32 inchj 5.5 — 8 mm. Male. — Last ventral as in maculicollis ; sixth concave, the depression partially filled with spiniform granules, hind margin as in maculicollis but not emargin- ate at the sides, (tig. 7, a). Female. — Last ventral as in ynaculicollis. Last dorsal similar to semirufics but with the middle lobe less deeply cleft but broader at base and the lateral lobes more slender, (fig. 7, b). In some of the Canadian and all of the British Columbia speci- mens, the middle lobe of the last dorsal segment 5 is rather more deeply cleft. This does not appear to be of specific value as the males are not distinguishable. Occurs from Canada and New Hampshire to North Carolina, and westward to British Columbia. T. (aolij'poroides, n. sp — Piceous, shining. Antennae half the length of body, slender, concolorous. Thorax smooth, shining. Elytra sliglitly longer than wide, very indistinctly alutaceous, shining. Abdomen shining, with very AMERICAN COLEOPTEHA. 95 few minute punctures, almost entirely smooth beneath. Length .18 — .20 inch; 4.5 — 5 mm. Male. — Last ventral deeply divided, lobes not divergent nor curved. Sixth ventral subtruncate feeble emargination at middle, pectinate along the margin with very short spinules forming a continuous series, a few spiuiform tubercles near the posterior margin and several on the fifth ventral. Last dorsal four- dentate but with the teeth more acute than in maculicollis, (fig. 8, a). Female. — Last dorsal with lateral lobes rather slender, middle lobe slender, as long as the lateral, cleft half to base, (fig. 8, b, too deeply cleft). The facies of" this species is somewhat tliat of Tachyporus, being more robiu>*t in body and more attenuated posteriorly than anj' species of Tachinus in our fauna, this together with the longer antenntx) gives it a facies altogether peculiar. It is however a true member of the present genus. The color is variable, mature specimens are entirely piceous. others less mature have the thorax and elytra more or less bordered with testaceous and their legs paler. Occurs in California, Vancouver and North Red River. T. agilis, n. sp. — Form and sculpture of tachyporoides, but somewhat darker in color, legs always piceous. Length .18 — .20 inch; 4.5 — 5 mm. Male. — Last ventral deeply, acutely einarginate, forming broad triangular plates, sixth ventral semicircularly emarginate at middle, spinules short, arranged at each extremity of the emargination, face of segment broadly longitudinally impressed, a few granules near the emargination. Last dorsal as in tackyporoide.s, (fig. 9, a). Female. — Last ventral with six processes, the two middle rather short and broad. Last dorsal with middle lobe as long as the outer cleft one-third to base, (fig. U, b). This species resembles taclujporuides so closely that the sexual differ- ences of the males alone separate them. The females do not differ except slightly in color. From uugiistafus besides the sexual differ- ences, the form of agiliii is much more robust and convex. Occurs in California, Crystal Springs. T. Riigii!^tatlii$, n. sp. — Form slender, piceous black, shining. Antennae slender, entirely piceous. Thorax shining, with a few very minute punctures sparsely placed. Elytra slightly longer than wide, shining, obsoletely j)unc- tured. Abdomen sparsely and finely punctured, scarcely at all alutaceous. Length .20 inch; 5 mm. Male. — Last ventral deeply divided, forming two triangular processes not curved and rather short. Sixth ventral feebly concave, broadly emarginate at middle, on each side pectinate with rather long spinules, hind margin at middle with narrow spongy space, face of segment without it. Last dorsal as in maculicollis, (fig. 10, a). Female. — Last ventral as in inafulicollis. Last dorsal with rather broad lateral lobes, middle lobe about three-fourths as long and deeply divided forming two slender processes, (fig. 10, b). Four specimens, two % , one 9 Colorado, one % California. 96 GEO. H. HORN, M. D. The spinules which occur on the sixth ventral of the male are rather long and directed obliquely outward, and not as in the pre- ceding species directly backward. T. I-'Ouisiana, Ulke; Michigan and Trenton Falls, New York, Dr. Schwarz. AMERICAN COLEOPTERA. 97 T. scrutator, Horn. — Pale piceo-testaceous, shining. Head black, very finely alutaceous. Thorax testaceous, smooth, sliining, apical region somewhat darker in color. Elytra piceo-testaceous, smooth, shining. Abdomen similar in color, apical margins of segments paler, surface smooth, without sculpture, beneath as above. Legs testaceous. Antennoe piceous, two basal joints paler. Length .14 inch; 3.5 mm, Male. — Last ventral as in tachj/poroide.s, sixth ventral deeply emarginate at middle, on each side sinuate, spinules arranged in three groups, one at each end of the etnargination, the other at its bottom. Last dorsal as in tachy- por aides, (fig. l.'i). Female. — Unknown. The color as above de.«cribed accords with that given by Melsheiiuer, (7". (Uacouleus II Mcls. Proc. Acad. 1844. p. 32), but is probably sub- ject to variatiou aud may become more or less piceous. The size given is smaller than .Melsheimer's. and there may even be some doubt as to the correctness of the identitication, but I can find no species to which the description can be better applied. This species has been placed in Leucoparyphus in all recent publications, but the anterior tarsi of the male are dilated and the mesosternum not carinate. One male, Illinois. T. luiinus, n. sp. — Piceous shining, sides of thorax somewhat paler. Head and thorax very minutely punctulate and scarcely perceptibly alutaceous. Elytra as broad as long, distinctly alutaceous. Abdomen above and beneath rather densely punctulate, finely pubescent, subopaque. Legs rufo-piceous, tarsi paler. Antennae long, black, two basal joints paler. Length .16 inch; 4 mm. Male. — Last ventral deeply and acutely notched as in angusiaius, sixth ven- tral very deeply emarginate, prolonged on each side of the emargination, and laterallj' with a sinuation, spinules arranged on the tips of the prolongation; lower face of segment distinctly concave with a granular space distant from the margin in form of a hoof. Last dorsal quadridentate, the middle teeth somewhat longer, (fig. 14, a). ^ Female. — Last ventral with the middle processes united, forming one obtuse lobe, lateral processes slender. Last dorsal with the middle lobe dcejily bifurcate, shorter than the outer lobes, the latter broader, as in scmirufus, (fig. 14, b). Two specimens from Oregon have been given me by 3Ir. H. Ulke, another pair remains in his cabinet. T. addendum, n. sp. — Piceous, shining, sides of thorax and elytra paler, legs testaceous. Head black, shining, extremely finely alutaceous and minutely punctulate. Antennae black, four basal joints piceo-testaceous. Thorax piceous, sides and base paler, sparsely finely punctulate. Elytra piceous, humeral space and narrow margin at the sides paler, rather coarsely punctulate. Abdomen piceous, posterior margins of segments paler, surface sparsely finely punctulate. Body beneath piceous, abdomen spujsely jiunctulate. Legs rufo-testaceous. Length .16 inch; 4 mm. Male. — Sixth ventral very deeply and suddenly emarginate, the angles of the emargination prolonged, obtuse and spiuulose, face of segment iznpressed, with TRASS. AMEK. K.NT. SOC. VI. (14) JUNE, 1877. 98 GEO. H. HORN, M. D. numerous grannies. Last ventral deeply triangularly notched as in mimus. Last dorsal normally quadridentate, (fig. 15, a). Female. — Last ventral with the usual six processes the two central broader and fimbriate. Last dorsal with the middle lobe slightly shorter than the outer, deeply divided into two slender processes, (fig. 15, b). The characters giveu iu the table will at once enable this species to be knowu. Two specimens kindly sent me by Dr. E. A. Schwarz, collected at Bachewauuug Bay, Lake Superior. T. paralleltis, n. sp. — Form parallel, color pieeous, thorax, elytra, antennae and legs rufous. Head black, smooth, shining, a faint vertical fovea. Thorax rufous, shining, finely alutaceous and very minutely sparsely punctured. Elytra slightly longer than wide, rufous, hind margin slightly darker, surface faintly sulcate, finely alutaceous and rather coarsely but sparsely punctured. Abdo- men pieeous, hind margins of segments paler, surface very minutely alutace- ous and finely and sparsely punctured. Legs rufous. Length .24 — .26 inch; 6—6.5 mm. Male. — Last ventral deeply divided, lacinise stout but arcuate; sixth ventral scarcely at all concave, broadly emarginate, without spinules or spongy space. Last dorsal four-dentate the lateral teeth short obtuse, (fig. 16, a). Female. — Last ventral as in maculicollis but with the middle lobes rather broader. Last dorsal with the lateral lobes rather stout and sinuate near the tip, middle lobe slightly longer than the outer lobes and divided to the base in two slender processes, (Bg. 16, b). This species is of more parallel form than any other in our fauna, and its facies is that of Olisthaerus but more convex. Occurs in Illinois and Canada. T. iiigricoi*iii!$, Mann. — Black, shining, elytra dark-brown, legs piceo- testaceous. Head and thorax black, minutely and sparsely punctulate and obsoletely alutaceous. Elytra sligiitly longer than wide, distinctly punctulate, obsoletely alutaceous and with two rows of distant and larger but obsolete punctures. Abdomen finely alutaceous, sparsely punctured more densely at base, beneath more coarsely punctured. Antennse pieeous. Length .24 — .26 inch ; 6 — 6.5 mm. Male. — Last ventral deeply divided forming two triangular processes not curved nor slender. Sixth ventral emarginate at middle, not pectinate, at middle concave, the concavity entirely filled with acute granules. Last dorsal as in maculicollis, (fig. 17, a). Female. — Last ventral entire middle lobo fimbriate, lateral processes indicated b^' small teeth only. Last dorsal entire, trilobed, lobes united, the middle longer and acute, (fig. 17, b, c). Occurs from Alaska to Vancouver. T, liiridliK, Erichson. — Pieeous, shining, elytra jialc luteous, legs testace- ous, antennae ferruginous, basal joints paler. Head and thorax black, sculp- tured as in nigricornis. Elytra not longer than wide, very minutely jjunctu- late. Abdomen more finely punctured than nigricornis, but beneath similarly. Length .24 inch; 6 mm. AMERICAN COLEOPTERA. 99 Male. — As in nigi-icornis, with the granular space on the face of the sixth segment more irregular. Female. — As in vigricornis. By description this and the preceding species are very closely allied, they differ however in the former having a different color and elytral sculpture, the elytra longer and the spongy or granular space on the % sixth segment in form of a hoof and in the present species very irregular. Occurs from Canada to Georgia.- T. canadensis, n. sp. — Picoous, thorax at sides, elytra at base broadly, sides and apex narrowly, testaceous. Legs testaceous. Antennae ferruginous, four bnsal joints paler. Head black, finely aliitaceous, sparsely punctulate. Thorax very finely alutaceous. Elytra distinctly longer than wide, finely alu- taceous, sparsely punctulate. Abdomen similarly sculptured, beneath smoother, scarcely punctulate. Length .22 — .24 inch; 5.5—6 mm. Male. — As in nigricornis. Female. — Last ventral as in maculicollis. Last dorsal trilobed, the lobes equal, the middle slightly bifid at tip, (fig. 21). This species is one of those in which the one sex closely resembles in its characters an adjacent species, while the other sex presents widely different characters from the corresponding sex of that species. Occurs in Illinois and Canada. T. finibi'iatns. Grav. — Piceous, elytra pale castaneous, tip narrowly pice- ous. Anteunse black, four basal and the last joint pale. Head and thorax black, very minutely punctulate and very finely alutaceous. Elytra as wide as long, minutely alutaceous, rather coarsely sub-striato-punctate. Abdomen shining, sparsely punctulate, beneath rather more coarsely punctulate. Legs piceous or piceo-rufous. Length .28 — .36 inch ; 7 — 9 mm. Male. — Last ventral deeply divided forming long, slender, curved lacinise- sixth broadly emarginate at middle, the centre of the emargination narrowly bordered with granules, face concave. Metasternura frequently elevated in a crest posteriorly. Inner angls of posterior coxae often toothed, (fig. 18, a, b). Female. — Last ventral as in maculicollis but with the two median processes more slender. Last dorsal trilobed, the outer lobes slender, the middle broader and shorter and triangularly notched at tip, (fig. 18, c). In both sexes the first two ventral segments are carinate at middle. Occurs from Canada to North Carolina. T. picipcs, Erichson.— Uniformly piceous, moderately shining. Antennae wilh the iiiur basal and the apical joint paler. Head and thorax very minutely punctulate and finely alutaceous, the latter with a feeble trace of median im- pressed line. Elytra as broad as long, sparsely punctured and finely alutaceous. Abdomen finely punctured and alutaceous, beneath more evidently punctured than above. Lengtli .28 — ..S2incli; 7 — 8 mm. Male. — As in Jimbriutus with the laciniae nearly straight, (fig. 19, a). Female.— Ldsl ventral as m Jimbriatus ; last dorsal as in parallelus, (fig. 19, b). 100 GEO. n. HORN, M. I). As in the preceding species the first two ventral segments are cariiiatc at middle. Occurs from Canada to Virginia. T. Scliwarzi, n. sp. — Piceous black, shinine;. AntennaB as in picipes. Head and thorax extremely finely ahitaceous. Elytra slightly longer than ■wide, obsoletely subsulcate, sparsely but very distinctly punctured, minutely alutaceous. Abdomen minutely punctured, scarcely visibly alutaceous, be- neath more distinctly punctured. Length .32 inch; S mm. Male. — As in picipes, (fig. 20, a). Female. — Last ventral as in Jimbriatus, last dorsal with the middle lobe broader than the lateral, as long, tip triangularly notched, (fig. 20, b). This species is one of the discoveries of Dr. E. A. Schwarz, of Detroit. It has no carinatiou of the first two ventral segments. Occurs near Detroit, Michigan. T. liinbatus. Mels. — 'Pale testaceous, very shining, elytra piceous with broad lateral and narrow apical margin pale. Antennae rufous, four basal and two terminal joints paler. Head black, with few minute punctures. Thorax testaceous, smooth. Elytra as broad as long, sparsely punctured, minutely alutaceous. Body beneath more distinctly punctured. Length .28 — .30 inch; 7 — 7.5 mm. Male. — Lacinise of last ventral short and broad as in luridus, sixth ventral emarginate at middle, a narrow granular margin at middle, face concave, last dorsal as in macuHcollis. Female, — Last ventral as in macuHcollis. Last dorsal with the outer lobes slender, middle lobe short, broad, and oval, sometimes pointed at tip and with the tip very finely bifid, (fig. 22). This species occurs especially in the Middle States. T. rmnipeniiis. Say. — Piceous, shining, sides of thorax, basal and apical margins of elytra and apical margins of abdominal segments testaceous. An- tennte piceous, two basal joints paler. Head and thorax minutely punctulate, finely alutaceous, the thorax with sides broadly, the apex and base narrowly testaceous. Elytra not longer than wide, sculptured as the thorax, piceous, humeral spot and basal band broader at middle and apex narrowly, testaceous. Abdomen more distinctly punctured than the thorax, apical margins of seg- ments paler, beneath sculptured as above. Legs testaceous. Length .24 — .30 inch; 6 — 7.5 mm. Male. — As in limbatus, the granular margin however barely visible. Female. — Last ventral as in macuHcollis, last dorsal as in parallelus. There is no difficulty in distinguishing this species excepting pos- sibly from fn'i/idutt, from this the general arrangement of color must be the guide, together with a more distinct punctuation of the latter. From Crotcliii and instabills the female last dorsal is the best dis- tinction. Occurs from Pennsylvania to Florida.* * While reading the proof of the above I have received the Canad. Ent. May, 1877, and find some remarks on this species by Mr. Austin. By his courtesy AMERICAN COLEOPTERA. 101 T. rris:i<1ll^7 Erichs. — Piccous black, shining, margin of thorax, base and sides of elytra and four basal joints of antennfe rufo-testaceous. Head and thorax minutely pimctnlate, finely alutaceous. Elytra slightly longer than •wide, finely punctured, minutely alutaceous. Abdomen more finely punctured than the thorax, finely alutaceous. Length .20 — .24 inch ; 5 — 6 mm. Male. — Lacinise of last ventral slender, not elongate, feebly curved, sixth ventral feebly emarginate without granular margin at middle. Last dorsal as in macuUcoUis. Female. — Last ventral as in maculicollis. Last dorsal with lateral lobes slender median broader, as long as the lateral, broad at base narrow at tip and rather deeply cleft, (fig. 23). This species resembles canademiiA but is distinguished by the cha- racters peculiar to each sex. In the females there is a tendency in the middle lobe of" the last dorsal to become more deeply cleft and the processes rather more divergent. Occurs from Pennsylvania to Canada, Alaska and California, and has been erroneously considered as luridns in collections. T. C'roteliii, n. sp. — This species resembles frigidiis so closely that no further description is necessary, it is however usually somewhat larger. Length .24— .26 inch; 6—6.5 mm. Male. — As \n frigidus. Fcvmle. — Last ventral as in friffidus, lacinise somewhat stouter, sixth ventral ■with narrow spongy border at middle. Last dorsal with the outer lobes slender, middle lobe as long, broad at base, tip acute, on each side a slender acute process, (fig. 24). Collected by G. 11. Crotch in Vancouver. T. iiiiiitabilis, Maklin. — Pitohy black, moderately shining, elytra dark castaneous. Antennae piceous. Head and thorax black, the latter with the sides rarely slightly paler, surface sparsely punctulate and obsoletely alutaceous. Elytra distinctly longer than wide, finely punctate and alutaceous. Abdomen similarly but less distinctly sculptured. Legs picco-testaceous. Length .22 — .24 inch; 5.5 — 6 mm. Male. — Similar to nigricornis, without granular S2)ace on the face of segment but a narrow border at middle of emargination. Female, — Last ventral as in memnonius. Last dorsal v/ith three slender equal processes, the middle sometimes feebly cleft at tip, (fig. 25). The males of this species resemble closely nigricornis^ the females are easily known. I had the privilege of examining the types of his remarks and find that his fumipennis and axillaris are but slight variations of the same species. Mr. Austin is mistaken in intimating that Say described "several allied species." T. colonus, Sachse, is by no means distinct from the above. The entire difficulty has arisen, it appears to me, from having 9 /rigidu.i mixed witli fumipennis^ as the former was unknown to Mr. A. at the lime the paper was written. The number of impressed segments of the abdomen is not a specific character as may be demonstrated by any six % specimens oi frigidus. 102 GEO. II. HORN, M. D. I am inclined to place with this species aptcrus, Miikl., described from a mutilated female, it appears to be very similar to the present species and differs only in having the middle process of last dorsal shorter, which may be due to accident. Occurs in Alaska and California. T. circ'uniciin'tiis, ISIakl. — Piceous black, shining, elytra castaneous or dark luteous, apical margin darker. Head and thorax black, very minutely punctulate and finely alutaceous. Antennse picenus. Elytra as long as wide, rather coarsely punctured, shining, not visibly alutaceous. Abdomen rather sparsely, coarsely punctulate, distinctly alutaceous. Legs piceo-lestaceous. Length .16 — .20 inch; 4 — 5 mm. Male. — Last ventral similar to nir/ricoriiis, sixth scarcely emarginate at middle, a narrow spongy space on the margin, face not concave. Last dorsal normally quadridentate. Female. — Last ventral with the middle lobes short and broad, lateral process very short, reduced to mere dentations. Last dorsal with the three lobes ap{)roximated and connate, the middle emarginate at tip, (fig. 26, a, b). Occurs in Canada, Michigan, Kansas, Vancouver, Alaska. T. nifidiiloides, n. sp. — Pitchy black, sides of thorax and tip of elytra paler. Head and thorax minutely punctulate, not alutaceous. Elytra as wide as long, rather coarsely, deeply and" regularly punctate. Abdomen sparsely punctulate, distinctly alutaceous. Legs piceous. Length .12 inch ; 3 mm. Male. — Vential characters as in circumcinctus. Last dorsal trideutate. The usual middle teeth united forming one. Female. — Last ventral as in maculicolli.s, ]&st dorsal as \r\ frigidus. This species is relatively broader than any other in our fauna, and resembles a Carpophilus at first glance. Occurs from Canada to Maryland. T. elorujatus, Gyll. — In addition to the above-mentioned, Manner- heim (Bull. Mosc. 1843, II, p. 227), quotes this species as having occurred in Alaska. I have been entirely unable to identify any of ours with it. T ACHY FOR US Grav. The species of this genus resemble each other so closely that it is only with great diflSculty that they can be described, so that their feeble differences may be made apparent. There are no variations of sexual characters that can be made available nor is the sculpture very different. The coloration is variable to a certain extent but appears to be the best means of formulating the species. The sexual charac- ters are as follows : Male. — Anterior tarsi distinctly dilated. Sixth ventral segment triangularly emarginate, seventh elongate oval. Last dorsal with entire marjirin. AMERICAN COLEOPTERA. 103 Frmalr. — Anterior tarsi very feebly or not dilated. Last ventral seniieirculur. Last dorsal with four equal acute teeth. The following table is the best I can devise for the species : Form convex and more robust. Color rufo- or piceo-testaceous. Elytra uniform or maculate. Elytra at sides and oblique discal spot on each black iiisiculipciiuis. Elytra uniform in color or merely darker around the scutellura. Abdomen bright rufo-testaceous, last two segments black elegans. Abdomen uniform piceous or piceo-testaceous. Thorax and elytra very much paler than abdomen. Thorax not broader than elytra, rapidly narrower to apex...jocosnS. Thorax broader than the elytra, sides strongly arcuate. clii*j'»$oineIinus. Body above uniform in color, piceous Cil.9if*orilicuS. Color pitchy black, apex of elytra paler. Form convex, femoi'a and coxae piceous naiiiis. Form sub-depressed, legs testaceous Mcitiilii!^. Form depressed, slender. Penultimate joint of maxillary palpi stouter. briiiineus. T. niaciilipciinis, Lee. — Piceo-testaceous, shining, convex. Head smooth, black, shiuitij;. Antennae testaceous, as long as head and thorax. Thorax testaceous, smooth, shining, nearly twice as wide as long, not wider than the elytra, sides arcuate and gradually narrowed to apex, hind angles broadly rounded. Scutellum piceous. Elytra conjointly wider than long and slightly longer than the thorax, tips conjointly feebly emarginate, disc shining, very sparsely and minutely punctulate, sparsely pubescent, color testaceous, a spot near the side margin and one oblique, on the middle of each elytron black. Abdomen piceous, hind margins of each segment paler, sparsely punctulate and pubescent. Body beneath piceous, abdomen more distinctly punctured than above. Legs testaceous, anterior coxae very slightly darker. Length .14— .16 inch; 3.5— 4 mm. In form this species resembles chr/jsomc/imo;, Liun., but the thorax is less broad. The ornamentation of the elytra resembles somewhat that of Cilea silphoides. Appears to be very widely distributed, Michigan to Georgia, Middle Statt s to Kansas. T. elegans, n. sp.— Bright rufo-testaceous, head, last two segments of aJidomen, and scutellar spot black. Antennae slightly longer than tha head and thorax ))ale testaceous. Thorax as in the preceding. Elytra rufo-testace- ous, paler than the abdomen, a cii'cum scutellar spot piceous, surface distinctly punctulate, sparsely pubescent. Abdomen bright rufo-testaceous, last two seg- ments bl.ick, surface sparsely punctulate and pubescent. Body beneath rufo- testaceous. abdomen more distinctly punctured than above. Legs pale testace- ous. Length .14 inch; 3.5 mm. This species resembles jocoam m form. Differs remarkably from all our .species in its coloration and resembles in this respect obtusus, 104 GEO. U. HORN, M. D. of Europe, in which the body beneath is piceous and the elytra at base broadly black. One specimen $ , Canada, Pcttit. T. jooosiis. Say. — Piceous shining, thorax, elytra and legs rufo-testaceous. Head black, shining, antennae testaceous, outer joints darker. Thorax not wider than the elytra, smooth, shining, twice as wide as long, sides rapidly narrowing to apex, hind angles rounded. Elytra very nearly as long as wide, conjointly feebly eniarginate, surface sparsely punctulate and pubescent, color rufo-testaceous, rarely with a lateral and circum-scutellar darker space. Abdo- men piceous, apical margins of the segments paler, surface sparsely punctulate and pubescent. Body beneath piceous, abdomen more distinctly punctured than above. Legs, coxse and prothorax testaceous. Length .16 inch; 4 mm. This species is also widely distributed like maculipevnis. It can only be confounded with chri/somelhius which is rather more robust in form and the thorax distinctly broader than the elytra. The lateral and basal spots are very often entirely wanting. T. clirysoinelinti>, Linn. — Piceous shining, thorax, elytra and legs, rufo- testaceous. Head black, shining, antennse testaceous, outer joints somewhat darker. Thorax not twice as wide as long, broader than the base of the elytra, sides strongly arcuate, surface smooth, shining. Elytra as in jocofi2is. Abdomen, body beneath and legs as in Jocosus. Length .16 inch; 4 mm. This species is somewhat variable; first, the typical form as de- scribed, (occurring in Canada) ; second, macvUcoUis, Lee, with a poorly defined darker thoracic space; third, acamhis, Say, smaller in size with the abdomen much retracted. The latter character will strike any student of the family as one of no value whatever. I have endeavored to find other characters affording sufficient basis for the separation of these as distinct species but without avail, the differences between this and Jocosus being slight enough. Same distribution as maculipe,nnis. T. calitornicus, n. sp. — Color above entirely piceous in maturity. Head black, anlennce piceous, paler at base. Thorax as in jocosus, sides slightly more arcuate. Elytra piceo-castaneous, sparsely punctulate and pubescent, form of jocosus. Body beneath piceous, abdomen above and beneath, sparsely and finely punctulate. Legs and coxse rufo-piceous. Length .16 inch; 4 mm. The color of this species may vary from immaturity so that the entire thoracic margin and the sides and apex of the elytra are paler, in this case the abdomen also becomes equally paler so that the uni- formity of color of the body is preserved. Occurs everywhere on the Pacific Coast from Oregon to the Penin- sula of California. AMERICAN COLEOPTERA. 105 T. nanus. Er. — Pitchy black, apical third of elytra rufo-testaoeous. ITead black, antennae piceous, basal joints paler. Thorax slightly broader than the elytra, pitchy black, sides and base narrowly paler. Elytra similar in form to chryaomclinus but more distinctly punctured. Body beneath, femora and coxae pitchy black, tibiae and tarsi piceo-testaceous. Length .12 — .14 inch; 3— .3.5 mm. By its color this is one of the most distinct species in our fauna. Occurs from Canada to Pennsylvania. T. SCitnln!^, Er. — Pitchy black, shining, apices of elytra testaceous. Head black, antennae rufo-testaceous. Thorax slightly broader than the elytra, pitchy black, lateral and apical margins narrowly paler. Elytra very slightly broader than long, apical margin testaceous, a piceous spot at humerus, surface dis- tinctly punctulate, sparsely pubescent. Abdomen piceous, sparsely punetulate and pubescent. Body beneath piceous. Legs testaceous, anterior coxas darker. Length .10 inch; 2.5 mm. One specimen from Louisiana is referred to this species. In form it resembles hrnnneus but is less depressed and the third joint of the maxillary palpi is less dilated. T. brunnous. Fab. — Rufo-testaceous, form depressed, elongate. Head piceous, antennae testaceous. Thorax twice as wide as long, not wider than the elytra, sides gradually narrowing to apex. Elytra as wide as long, sparsely punctulate and pubescent. Abdomen slightly darker than the elytra, similarly punctured. Body beneath rufo-testaceous, metasternura somewhat darker. Legs and coxae testaceous. Length .10 — .12 inch; 2.5 — 3 mm. It may easily be noticed that the penultimate joint of the maxillary palpi is more inflated than in any other of the genus. Occurs over our entire country including California, is also common in Europe and Northern Africa. Probably cosmopolitan. CII.EA Duval. Owing to the discovery of several new Tachinus with characters slightly at variance with the majority of the species, the diflFerences between these two genera seem to be narrowed down to a slight carina- tion of the mesosternum between the coxae, and the tarsi simple in both sexes. The first joint of the hind tarsus is, it is true, nearly as long as the three following united, but in Turliinua tarhi/poroldes the same joint is very nearly as elongated. Cilea has priority over Leucoparyphus. One species only is known in our fauna occurring especially in the Northern States and common in the greater part of Europe. L. dis- coideus (Mels.), Lee, should be placed in Tachinus, the mesosternum being simple and the anterior tarsi dilated in the male. TRANS. AMER. ENT. SCO. VI. (15) JINE, 1877. 106 GEO. n. HORN, M.D. C silptioidos. Linn. — Piceous black, shining, thorax broadly testaceous at the sides, elytra with humeral spot, apical margin and suture testaceous. Antennae piceous, two basal joints paler. Head and thorax very finely alutace- ous. Elytra obsoletely punctulate, not alutaceous; humeral spot usually small, apical testaceous margin wider externally, the sutural wider at each extremity. Abdomen above punctured and more distinctly alutaceous than the thorax, beneath finely punctulate and alutaceous at the sides. Legs pale testaceous. Length .10 inchj 2.5 mm. Male. — Last ventral deeply notched, forming two triangular plates, sixth ventral deeply notched at middle on each side of the notch a strong angulation beyond which the margin is very oblique. Last dorsal with four slender teeth the two median longer and more acute, (fig. 27, a, b). Female. — Last ventral with four slender processes, the two median somewhat broader and longer. Last dorsal with four slender processes nearly equal in length and similar in form, (fig. 27, c). In addition to the processes described for both sexes there are on each side two others which seem to belong to the last dorsal and ventral respectively. These are merely portions of the genital arrangement. PHYSETOPORIJS n. g. Form robust as in Conosoma. Mentum transverse, narrower in front, ligula dilated at apex deeply notched. Last joint of maxillary palpi slender as in Tachiuus, twice as long as the preceding joint. Antennae slightly longer than head and thorax, joints longer than ■wide. Mesosternum strongly cristate. Hind tarsi with joints one to four gradually decreasing in length. Anterior tarsi dilated in the males. Abdomen feebly margined. The above genus, proposed for Coproporus grrossuhis, Lee, seems intermediate between Tachinus and Erchomus. With the former it agrees in the structure of the antennae, palpi and % tarsi, with the latter it is allied by the structure of the mesosternum although instead of being simply slightly carinate there is a very strong crest or plate as in many Hydrophilidae. P. grossilliis, (Lee.) — Robust, convex, black, shining. Antennre piceous four basal joints paler. Head and thorax very minutely punctulate and very finely alutaceous. Elytra conjointly, broader than long, narrower posteriorly and emarginate at tip, surface more distinctly punctulate and alutaceous with the strigosity oblique. Abdomen more densely punctulate and alutaceous, be- neath more distinctly punctulate. Legs pale testaceous. Length .16 — .18 inch; 4 — 4.5 mm. Male. — Last ventral deei)ly triangularly notched, sixth trisinuate at apex and finely fimbriate at middle. Last dorsal acutely quadridontate, teeth similar and equal. Female. — Last ventral deeply divided into six slender and acute processes, the four middle processes equal, the lateral shorter. Last dorsal trilobed as in Tachinus, the middle lobe broader than the outer but shorter and deeply divided into two slender processes. AMERICAN COLEOPTERA. 107 The male has the anterior tarsi as broailly dihiteJ as in any TucJii- nits. The genital apparatus is also provided with two long, slender, falciform processes which greatly resemble the lacinioe formed by the deep division of the seventh ventral segment of Tarh. memnoniuH and others. Occurs not rarely in the decaying stems of various CactaccEe in Arizona. ERCIIOMIJS Motsch. The species of this genus were placed originally by Erichson as a group of Tachinm characterized by the carinate mesosteruum and the simple anterior tarsi of the male. These have justly been considered to have generic value and the group has consequently been known as Copi-oporuK, Kraatz, (1859), although Motschulsky's name has one year priority. The species may be separated in the following manner : Elytra distinctly punctulate. Last ventral % triangularly notched. Thorax not visibly punctulate, elytra distinctly alutaceous inflatns. Thorax distinctly punctulate, elytra not alutaceous pillictipcuuis. Last ventral %, semicircularly notched. Thorax minutely punctulate, elytra not alutaceous vciltriculus. Elytra smooth, not punctulate. Last ventral % triangularly notched IseTis. E. inflatu$>>, (Fauvel mss.) n. sp. — Pitchy black, shining. Antennae rufo- piceous, lour basal joints paler. Head black, extremely finely alutaceous. Thorax similarly sculptured. Elytra conjointly broader than long, gradu- ally narrower from base and emarginate at middle, surface finely punctu- late and alutaceous. Abdomen sparsely punctulate and finely alutaceous, beneath more distinctly punctulate. Legs rufo-testaceous. Length .12 — .14 inch; 3 — 3.5 mm. Male. — Last ventral deeply triangularly notched at middle. Last dorsal quadridentate, the teeth slender and acute, the two middle longer. Female. — Last ventral divided into six slender processes, the outer very short, the middle longer. Last dorsal with four slender acute jirocesses, the middle longer. This species is much larger than the others of the genus and broader and at the same time rather more depressed. Occurs under decaying Cactus at Camp Grant, Arizona. E. piinotipcnniM, Lee. — Black, shining. Head and thorax minutely punctulate, very indistinctly alutaceous. Elytra distinctly punctulate, not alutaceous, obsoletely longitudinally strigose. Abdomen minutely punctulate, obsoletely alutaceous. Legs piceo-rufous. Length .10 inch; 2.5 mm. Male. — Last ventral broadly triangularly emarginate. Last dorsal quadri- dentate, middle teeth longer, (fig. 28). Female. — Last ventral very like Tachinus angustatus ; last dorsal as in the male. 108 GEO. H. HORN, M. D. Closely resembles ventricnhis and is distinguished by the sexual characters of the male only, the characters of sculpture and color are evanescent. Occurs at Camp Grant, Arizona, under Cottonwood bark. E. Tentriciilus, Say. — The description of the preceding species applies equally well to this. The only permanent difference being in the male sexual characters as shown in the table. I do not notice the fine longitudinal strigse on the elytra of the specimens before ine, they are however very feeble in the preceding. Male. — Last ventral semicircularly emarginate at middle. Last dorsal as in punctipennis, (fig. 29). Female. — As in punctipennis. Occurs everywhere east of the Rocky Mountains, and varies in color from varying degrees of maturity. IS,. Isevis, Lee. This also agrees with punctipennis in all its characters, sexual and otherwise, except that the head, thorax and elytra, are entirely smooth and devoid of sculpture. Occurs in the Gulf States. C01V0S0;»I.4 Kraatz. This genus is especially distinguished from all others of the group by the immarginate abdomen, the other characters being those of I'dchi/porua. In the endeavor to find some rational basis for the separation of the species some hitherto unobserved characters have been noticed. The feeble carination of the mesosternuin has already been mentioned by Erichsou as occurring in several species, in these the mesosternum is merely obtusely elevated without acute summit, and the body is more depressed in form. One species only has on each elyiron a marginal row of setigerous punctures. Those in which the elytra are red at base have long rather stout seta) arising from punctures at the sides of the abdominal segments, the unicolored species have short hairs merely which might readily escape notice. The anterior and posterior tibiae have each one terminal spur, slender and delicate, and very short on the anterior tibiae. The middle tibiae may have either one or, as in the majority, two spurs. The tips of the middle and hind tibiae arc fimbriate with short equal spinulos which in one species ascend a short distance along the inner margin of the tibiie as is seen in many Curculionidae. On the outer side of each femur near the knee there is always a moderately long stiff, bristly hair directed downwards and iu those species with but one middle tibial spur there AMERICAN COLEOPTERA. 109 arc tliree bristles, one long and two much shorter, so that without being able to observe the spurs on the middle tibiae, the fact of the occurrence of one bristle near the tip of the femur indicates two tibial spurs, while three bristles indicate one spur. The above-mentioned characters have been made use of in the arrangement of our species in the manner shown in the following table : Mesosternum obtusely elevated. Body subdepressed. Thorax piceous, hind angles rufo-testaceous littorcilin. Thorax testaceous, apical third or half piceous Kuoxii. Mesosternum distinctly carinate. Body robust. Middle tibiae with one terminal spur only. Elytra unicolored or feebly paler along the base; spinulcs of the tip of middle tibiae ascending, (fig. 33) crassum. Elytra with well-defined red spot on each; spinules of middle tibise termi- nal only bisiguatum. Middle tibiae with two distinct terminal spurs, (fig. 34). Elytra without setigerous punctures. Abdominal segments without long setae at the sides. Elytra densely punctulate. Sj)ecies of moderate size. Elytra broader than long. Color of body pale castaneous. Hind angles of thorax subacute ca^itaiicum. Elytra as loug as wide. Color piceous. Hiud angles obtuse. piibescens. Elytra very sparsely punctulate. Species very small parvuluin. Abdominal segments with long setae at the sides, arising from rather large deep punctures. Thorax finely punctulate merely ba^alc Thorax finely punctulate and alutaceous opiciilU. Elytra with a row of setigerous punctures near the margin. Abdomen setose at the sides scriptuni. It sometimes happens that the setae of the abdominal segments are removed by abrasion, but the large punctures from which they arise may be seen so that the presence of the one is an indication of the other. C littoreiim, Linn. — Subdepressed, brownish, subopaque, clothed with fine sericeous pubescence. Head piceous, finely and sparsely punctiilate. Antennae pale brownish, four basal and two apical joints palc;r. Thorax brownish, hind angles broarlly rufo-testaceous, broader than tiie elytra, hind angles subacute, surface moderately densely and finely punctulate and pubes- cent and under high power distinctly alutaceous. Elytra longer than wide, slightly narrower at apex, color brownish opaque, a large basal spot, testaceous on each elytron, surface densely and very finely jjunctulate and with brown silken pubescence. Abdomen piceous, hind margins of each segment paler, surfacve less densely punctured and pubescent than the elytra. Body beneath piceous, legs an. Elytra unicolored, rufous intriisiis. Antennie slender, joints not transverse ciiigulatus. 6. — Thorax in part piceous or black. Head oval. Disc entirely piceous, lateral and basal margins narrowly testaceous. eincticollis. A large black spot in each anterior angle, the two confluent at middle. auticus. Thorax entirely rufous or rufo-testaceous. Head oval, scarcely longer than wide. Dorsal series of elytra with few punctures pygina^us. Dorsal series with many punctures trinotatus. Head much longer than wide. Dorsal series with few punctures. obsolctas. 6. — Head elongate, dorsal series with few punctures ciiictus. 7. — Thorax black, lateral and basal margins testaceous ; legs pale. ..longiceps. Thorax entirely black; legs pitchy black qiia^sitor. B. niger, Grav. — Black, shining. Head smooth, black, shining, oval. Antennae piceous, terminal and two basal joints paler, as long nearly as head and thorax, first three joints cylindrical, five to ten flattened and decidedly transverse, eleventh longer, oval at tip. Maxillary palpi moderately elongate and slender. Thorax smooth black, shining, not wider than the elytra, nar- rower in front, hind angles broadly rounded. Elytra as long as %vide, slightly broader at apex than base, smooth black, shining, the punctures of the three rows almost obsolete. Abdomen black, shining, apical margin of penultimate segment often paler, surface sparsely punctured and pubescent, the first three visible segments smoother at middle. Body beneath and legs black, abdomen sparsely and evenly punctured.' Length .28 — .46 inch; 7 — 11.5 mm. Male. — Sixth ventral tricarinate at middle, the middle carina short; between the ends of the outer carina' the edge is slightly emarginate. Female. — Abdominal segments simple. Variety. — Smaller forms occur of piceous or rufo-piceous color not diff"ering however in any essential character from the normal form. Occurs in Pennsylvania, Canada, Michigan, Illinois, but is not common anywhere. B. axillaris, Grav. — Pitchy black, shining, legs piceo-testaceous, elytra with narrow border at tip also a broad dorsal stripe testaceous. Head elongate oval, smooth, black, shining. Antennae longer than head- and thorax, piceous, basal joint testaceous, joints five to ten moderately transverse. Palpi moder- ately elongate and slender. Thorax slightly broader than the base of the elytra, narrowed in front, hind angles broadly rounded, surface smooth black, shining. Elytra as long as wide, the sutural row of punctures very fine, discal row of five more distinct, lateral series more numerous. Abd6men as in niger. Body beneath black, shining, abdomen coarsely punctured. Length .20 — .28 inch ; 5 — 7 mm. Male: — Sixth* ventral segment with a small dentiform carina at middle. Female. — Abdominal segments simple. This species is easily known by the ornamentation of the elytra. Occurs in the Gulf States, not common. * EricLson says the fifth, but erroneously. AMERICAN COLEOPTERA. 115 B. . — Piceous shining, elytra rufous, legs testaceous. Head oval, smooth black, shining. Antennae as long as head and thora.x formed as in dimidiatus. Palpi as in diinidiatus. Thorax variable in color from rufo- piceous to black, smooth shining, form as in dimidiatus. Elytra entirely rufous or rufo-testaeeous, the series of punctures as follows; sutural moderately dis- tinct, dorsal of five distinctly impressed, lateral finely and obsoletely punc- tured. Abdomen pitchy black, tips of segments paler, punctured as in dimidiatus. Body beneath piceous, abdomen coarsely punctured, apical half of segments smoother last two segments with longer fimbriae. Legs testaceous. Length .24 inch; 6 mm. Male. — Sixtli ventral lontritudinally rather deeply impressed and near the tip a spongy space divided in two lateral portions. Anterior tarsi rather strongly dilated. Female — Ventral segments simple. I am not positive concerning the validity of this species. Speci- mens have been returned to some of his correspondents in tliis country by Fauvel as riiKjulatux var. The sexual characters are so well marked that there will be no difficulty in determining the identity of the pres- ent species with any of those of Europe. The appearance in the pres- ent genus of the spongy space so often seen in Taclitnus is rather re- markable, while the general aspect also approaches that genus. This species is very variable in the color of the thorax, some are entirely black, others piceous with paler basal margin, others again ^have the thoi-ax and elytra similar in color. The anterior coxae are also variable in color. Occurs from Canada to I'eunsylvauia. * B. oingiilsitUN, Mann. — Black, shining, elytra and often the thorax rufous, legs testaceous. Head black, shining, rather broadly oval. Antennre slightly longer than the head and thorax, piceous, terminal and two basal joints paler. Palpi short, stout, last joint distinctly conical. Thorax variable in color from rufous to black, smooth shining, slightly broader at base than the elytra, hind 116 GEO. H. HORN, M. D. angles less broadly rounded than in dimidiaius. Elytra slightly longer than wide, rufous, sutural and lateral series of punctures fine, dorsal series obsolete. Abdomen pitchy black, apical half of the fifth and sometimes the sixth rufous, sparsely punctured and pubescent. Body beneath piceous, abdomen sparsely punctured, legs and anterior coxae testaceous. Length .28 inch; 7 mm. Jlfa^e.— Anterior tarsi strongly dilated. Last joint of antennae as long as the two preceding. Seventh ventral segment slightly prolonged at tip and with fine spinules near the tip or arranged sparsely along each side of the middle of the segment, sixth ventral with a feeble emargination at middle. Female. — Tarsi not dilated. Last joint of antennae slightly longer than the preceding. Ventral segments simple. This species corresponds so closely with the descriptions that I feel unwarranted in giving it a distinct name.* The antennae are more slender than any of the preceding species but more robust than those which follow. The palpi seem almost identical with those of Bn/o- porus. The sculpture and general appearance are however that of BoUtohiuH. It is naturally intermediate between the Mcgacronus group of the genus and the maculate species as well as with the two preceding, exhibiting a tendency to Brijoporus.* The variable color of the thorax is independent of locality. Two from Canada are black and rufous, and from British Columbia and Oregon also similar, and two others from Pennsylvania, one is black the other rufous. B. ciiicticolliii^. Say. — Piceous shining, base and sides of thorax testa- ceous, elytra rufo-testaceous with large black spot on each of variable size, legs testaceous. Head oblong oval, black, shining. Antennae slender, longer than the head and tliorax, piceous, three basal joints testaceous. Palpi slender, long. Thorax black, shining, sides and base narrowly, hind angles more broadly testaceous, not broader than the elytra, hind angles obtuse but not broadly rounded. Elytra slightly longer than wide, j'ellowish testaceous, a large black spot near the outer angle not attaining the apical margin but nearly always extending upon the epipleurae; sutural and lateral series of fine punctures, dorsal series nearly obsolete. Abdomen piceous, the hind margin of each segment paler, sparsely punctured. Legs and anterior coxae testaceous. Length .14 — .22 inch; 3.5 — 5.5 mm. The sexual characters are not apparent. Variations occur in the color of the thorax but nothing is seen to disturb its general character. The elytral spot varies in magnitude, and in one specimen from California the spot is small and round and distant from the sides and apex. In specimens with the abdo- men g*"eatly extended there is a conspicuous pale band, formed of the apical third of the sixth and the basal third of the seventh segments. * Since the above was written I have received specimens from M. Salle of the European form and find them identical. AMERICAN COLEOPTERA. 117 This species is quite common in the northern portions of our country, extending its range from Pennsylvania to Canada, and west- ward to British Columbia and California. It is the representative of the European trimaculatus iu our fauna. B. antieiis, n. sp. — Piceous or piceo-testaceous, thorax and elytra rufo- testaceous, thorax at apical half, a large spot at the outer angle of each elytron and often a scutellar spot nearly black. Head oval, black, sliining. Antennae piceous, apical and four basal joints testaceous. Thorax slightly broader at base than elytra, hind angles obtuse, disc smooth, shining, riifo-testaceous, a large black spot at each anterior angle the two confluent at middle. Elytra slightly longer than wide, diseal series distinct, with fine punctures, sutural and lateral series feeble, color rufo-testaeeous, a black spot of irregular size and shape near the outer apical angle, attaining the side but not the apical margin, often a circum-scutellar dark space. Abdomen piceous, apical margins of seg- ments paler, surface sparsely punctured. Body beneath black, abdomen piceous sparseh' punctured. Legs testaceous, anterior coxae at base piceous. Length .16— .20 inch: 4—5 ram. Sexual characters not apparent except that the anterior tarsi of the male are slightly broader than the female. This species might be confounded with some of the varieties of pygmseug which are said to occur in Europe in which the thorax is partly piceous, but in this species the male has a distinct tubercle on the sixth ventral segment. Occurs in the New England and Middle States, and Michigan. B. pyginseus. Fab. — Piceo-testaceous, shining, elytra with a triangular spot at scutellum and at each outer angle black. Head rather broadly oval, smooth black, shining. Antennae slightly longer than the head and thorax, piceous, first four joints testaceous. Thorax at base slightly narrower than the elytrr., hind angles obtuse, not broadly rounded, color yellowish testaceous, smooth, shining. Elytra as wide as long, dorsal series of few punctures, sutural and lateral series nearly obsolete, color yellowish testaceous, smooth shining, a long triangular spot at the scutellum, one at each outer angle of the elytra not attaining the apical margin. Abdomen piceo-testaceous varying to rufous, very sparsely punctured. Body beneath piceous, abdomen paler and moderately punctured. Legs and anterior coxse pale testaceous. Length .14 — .16 inch ; 3,5 — 4 mm. Male. — Sixth ventral segment with au obtuse tubercle behind which the segment is slightly impressed. Female. — Abdomen simple. Specimens are from the Gulf States, and one from British Columbia. B. lriiiOngiccp!>i, Lee. — Pitchy black, shining, elytra, basal margin of thorax and legs rufo-testaceous. Head black, shining, twice as long as wide. Antennae longer than head and thorax, piceous, basal joint paler. Thorax scarcely wider than long, narrower at base than tlie elytra, hind angles obtuse, color black, base narrowly, sides at basal half more widely margined with rufo-testaceous. AMERICAN COLEOPTERA. 119 Elytra rufous shining, as long as wide, dorsal series of five or six rather deeply impressed punctures, sutural and lateral series more feebly impressed. Epl- pleurre black. Abdomen pitchy black, apices of segments paler, surface smooth, sparsely punctured. Body beneath black, abdomen coarsely punctured, more densely on the last two segments. Legs testaceous, anterior coxae piceous at base. Length (including head), .34 inch; 8.5 mm. T can find no sexual differences in three specimens. This species and the next have the head distinctly widest at base. There is in some specimens a darker cloud along the discal series of punctures. Occurs in Canada. B. quiesitor, (rosiraius || Lee.) — Black shining, elytra with rufous stripe extending from humerus to apex broader behind. Head more than twice as wide as long, broadest at base. Antennae black, basal half of first joint paler, also the tip of the last joint. Thorax distinctly wider than long, narrower than the elytra at base, hind angles obtuse. Elytra as broad as long, moderately convex, humeral umbone moderately prominent, discal series of five rather deep punctures, sutural and lateral series much finer j color black with a rufous vitta on each, narrow at the humerus rapidly becoming broader to apical margin attaining the suture. Abdomen black, shining, sparsely punctured. Body be- neath black, shining, abdomen coarsely but sparsely punctured. Legs pitchy black. Length (including the head), .28 — .40 inch; 7 — 10 mm. No sexual characters apparent in two specimens. The very great length of head is certainly a most remarkable character. Two specimens, New York and Illinois. B. biseriutus, 3Iann,, from Alaska, is unknown to us. BRYOPOKUS Kraatz. This genus has been united with Mycetnporus by Fauvel, (Bull. Soc. Linn, de Norm. X, p. 247), but in this I cannot coincide. A careful study of all the specimens which have come before me of both genera has shown that the maxillary palpi have the last joint distinctly conical, as broad nearly at its base as the apex of the preceding joint, and consequently not capable of retraction. In Mj/cetoporus on the con- trary the last joint is distinctly subulate, much more slender than the preceding and very plainly capable of retraction to a greater or less extent. Should there be any union at all, this would rather become JSofitohius than Mijcctoporus, from which however the numerous rows of punctures and the structure of the tibiae at tip readily dis- tinguish it. As in two species of Mijcctoporu^ the middle and posterior tibiae are fimbriate with closely phiced equal spitiules. I am unable to separate the series now before me into any greater number than two species. 120 GEO. n. HORN, M. D. Color piceoas, elytra with slightly paler humeri, legs pale yellowish testaceous. flavipes. Rufo-piceous, thorax and elytra rufous. Legs rufous ruA^scens. B. flavipCN, Lee. — Pieeous, elongate, shining, legs yellowish testaceous. Heail and tjjorax smooth and shining. Thorax with the marginal punctures of Mycetoforus, the apical more distant from the margin. Elytra slightly longer than wide, pieeous, humeral prominence somewhat paler, disc with about seven rows of moderately impressed punctures bearing very short hairs. Abdomen pieeous, apices of segments paler, sparsely punctured each puncture bearing a hair. Body beneath pieeous, abdomen punctured as above. Anterior and middle coxae and legs testaceous. Length .16 — .18 inch; 4 — 4.5 mm. Occurs in Louisiana. B. rnfescens, Lee. — Head pieeous, smooth, shining. Thorax rufons, smooth, shining, punctured as the preceding. Elytra rufous. Abdomen piee- ous, apices of segments rufous. Body beneath pieeous, abdomen rufo-piceous. Legs, anterior and middle coxse rufo-testaceous. Length .14 — .18 inch; 3.5 — 4.5 mm. I am entirely unable to separate the types of rufescenn and ruhidus ; testaceus is rather smaller and in some specimens the elytral punctures are almost entirely obliterated, but this is a gradual variation from the punctured forms and not a constant character. Occurs from Michigan to Florida, and from Pennsylvania to California. The investigation of the two species of Bryoporus by means of a still larger series may produce a still further suppression, as I am by no means satisfied that the feeble characters separating them are of that value which should cause them to be retained as distinct. The sexual characters are extremely feeble and are as in Mi/ceto- ponis. MYCETOPORIIS Mann. The species of this genus have certain characters in common. The elytra are smooth and shining and with three rows of punctures, usually very distinct sometimes very feeble, placed, one in the sutural channel the second from the humerus to the tip, the other along the lateral margin, the punctures bear fine setae. The thorax has around its circumference certain constant punctures, four are placed along the apical margin, two basal, three along the lateral margin and two, one behind the other, between the middle and lateral margin. Two species have in addition two discal punctures which are constantly present and wanting in all the other species. The tips of the middle and hind tibiae in two species are fimbriate with short, equal, closely placed spinules, while the other species have the spinules coarser and very AMERICAN COLEOPTERA. 121 unequal. The third joint of the maxillary palpi of one species is much more dilated, in fact ovoid truncate at tip, even stouter than in Tarlti/porns hnmnexis. Color is not to be depended upon in the separation of species except in one instance, fiavi'collis, where the style of coloration is so remarkably different, resembling a BoUtohius. By an arrangement of the above characters the following table is produced. Middle and posterior tibiae fimbriate at tip with coarse uuequal spinules. Thorax without discal punctures. Third joint of maxillary palpi slender, similar to the second lopidiis. Third joint much stouter, ovoid, truncate. Species very slender. ..tenuis. Thorax with two discal punctures slightly behind the middle. Elytra with one discal row of punctures liK'idiilus. Elytra with two rows of discal punctures c*oiiM<>rs. Middle and posterior tibiae fimbriate with equal spinules. Elytra uniform in color piceo- or rufo-testaceous; abdomen rufo-testaceous, each segment paler at tip anicricaiius. Elytra piceous black, apical third red; abdomen rufous, last two segments black fistvicollis. Elj'tra more narrowly rufous at tip and a humeral spot var. /ncilu.s, m. Icpiiliis, Er. — Color and size variable. Head black. Thorax smooth, shining, without discal punctures but with the others as previously enumerated, slightly broader than the base of the elytra. Elytra as long as wide, slightly broader at apex than base, surface shining with the three series of punctures feebly impressed. Abdomen very sparsely punctured and sparsely pubescent, beneath more coarsely punctured. Length .12 — .18 inch; 3 — 4.5 mm. The color of this species varies so greatly that nothing can be said in a general way. Several marked variations occur as follows : I. Color above castaneous, elytra darker at the sides and alono- the suture, abdomen piceo-rufous, tips of segments paler. Lake Superior. il. Color above rufo-testaceous, abdomen piceo-rufous. These forms imitate Taclujporus jocosiis. Michigan, Schwarz. in. Elytra entirely piceous, a narrow pale stripe adjacent and ex- ternal to the discal row of punctures. Florida, Schwarz. IV. I have also a specimen from California which for the present I refer to this species. It appears to be of more slender form but this results from the extension of the last two abdominal segments. Its color is as in the Florida specimen. The color of the legs also varies with that of the upper surface being either rufous or testaceous. Occurs from Michigan southward to Florida and westward to California. TKASS. ASIEK. EST. SOC. VI. (17) JUNE, 1877. 122 GEO. H. HORN, M. D. M. tennis, n. sp. — Piceous, slender, shining. Head dark rufo-piceous, smooth shining. Antennae piceous, three basal joints paler. Thorax as broad as the elytra, smooth, shining, rufous, no discal punctures. Elytra piceo-rufous, as broad as long, strise of punctures moderately distinct. Abdomen piceous, apices of segments paler, shining, very sparsely punctate and slightly pubes- cent. Body beneath piceous, abdomen more distinctly punctured, legs and coxse testaceous. Length .10 inch; 2.5 mm. This species is very much smaller and more slender than /epidus and differs more especially in the stouter third joint of the maxillary palpi. Collected by Dr. Schwarz, in the Lake Superior region. M. lucidulns. Lee. — Piceous shining, elytra often rufous. Head almost black, smooth sliining. Antennae rufous, basal joints paler. Thorax piceo- rufous, smooth shining, with the usual marginal and two discal punctures behind the middle. Elytra piceo-rufous or rufous, with the usual rows of punctures, and a single, sometimes several punctures in the space between the sutural and humeral rows, form as long as wide. Abdomen piceous, apical margins of segments paler, coarsely but sparsely punctured and sparsely pubescent. Body beneath piceous. Legs testaceous, anterior coxae always darker. Length .10 — .12 inch- 2.5 — 3 mm. This species is readily known by the presence of the discal punc- tures of the thorax and from the next by the elytral sculpture. Occurs in Pennsylvania and Illinois. 91. censors, Lee. This species resembles the preceding but is somewhat more robust in form and has an additional row of five or six punctures within the normal humeral row. In every other respect the two species agree and future collections may add this (represented by an unique), to the preceding. Length .14 inch ; .3.5 mm. One specimen, Michigan. M. americanns, Er. — Rufo-piceous, shining. Head rufo-testaoeous, shin- ing. Antennae testaceous, middle five joints darker. Thorax rufo-testaceous, smooth shining, no discal punctures, slightly broader than the elytra. Elytra distinctly longer than wide, rufo-testaceous, sutural row of punctures distinctly impressed, humeral row obsolete. Abdomen rufo-piceous or rufous, coarsely but sparsely punctured, sparsely pubescent. Body beneath as above, abdo- men more distinctly punctured. Legs testaceous. Middle and hind tibiae obliquely truncate, fimbriate with short equal spinulos. Length .12 — .14 inch ; 3 — 3.5 mm. By the structure of the four posterior tibi.c this species may be known from every other except the next species, from this the cha- racters of the table are amply sutlicient to distinguish it. Occurs rather abundantly in the Lake Superior region and British Columbia, Crotch. AMERICAN COLEOPTERA. 123 yi. flavic>olli!>>, Lee. — Head piceous, antennae rufous, basal and apical joints paler. Thorax reddish-yellow, smooth, shining, no discal punctures, slightly wider at base than the thorax. Elytra slightly wider than long, smooth black, shining, apical third red, disc with the usual rows of punctures. Abdomen rufous, last two segments piceous, the apex of the penultimate seg- ment however paler, coarsely punctured, sparsely pubescent. Body beneath black, abdomen rufous, legs testaceous. Length .16 inch ; 4 ram. This species lias also the structure of middle and posterior tibia) of the preceding species, iroiu which its color will readily dis- tinguish it. Occurs in Michigan, Florida and Georgia. The variety ? pictiis, Fauvel niss., is of somewhat more slender form and has also a rufo-testaceous humeral spot. These characters are so exactly in accord with the variations of lepu.'us that I think it better to consider this a variety and not a distinct species. The sexual characters of the species are not very striking, and consist in the slightly stouter antennae of the male and the sixth ventral segment much less rounded than in the female. The following are unknown to me. M. iu»»igiiis, Miikl., Bull. Mosc. 185.3, III, p. 186. — Oblongus, niger, nitidus; thorace disco Isevissimo, paulo ante marginem basaleni punctis quatuor trans- versim positis impresso segmentorum marginibus, abdominis, elytrisque rufis; his thorace sesqui longioribus in medio macula magna discum totum fere occu- pante margineque lateral! nigris, prope seriem dorsualem punctis duobus im- pressis; anlennis capite cum thorace paullo brevioribus, apicem versus leviter incrassatis pedibusque rufo-testaceis; femoribus posticis infuscatis. Longit. 2^ lin, Latit. 1 lin. In insula Afognak. The length of this species as given is so much greater than any other in our fauna that there seems to be some error in the generic determination, otherwise it is a remarkably fine species. III. nigrans, Miikl., loc. cit. p. 187. — Subelongatus, niger, nitidus, antenna- rum basi, thoracis margine basali,elytrorum limbo apicali, pedibusque testaceis; antennis apicem versus modice incrassatis articulis penultimis transversis; thorace punctis quatuor multo intra apicem transversim positis et eodem numero paullo ante marginem basalem impresso j elytris serie punctorum dorsuali simplici. Longit. li lin. Latit. vix ultra i lin. This species seems to be merely one of the varieties of hpiiJus. The description fits very well certain forms of that species before me. lIAItKOC 1:KUS Erichs. This genus is especially distinguished by the form of the hind coxae which are broadly triangular, concealing the insertion of the femora as well as part of the femur itself in repose. The head is dellexed the antennae slender, capillary, and very fragile. The abdomen is 124 GEO. H. HORN, M. D, margined. Elytra slightly longer than the pectus. Tarsi five-jointed. Mesosternura feebly carinate. II. Scliwarzi, n. sp. — Pitchy black, sub-depressed, shining, elytra pale luteous, legs and coxae testaceous. Head and thorax pitchy black, smooth, shining. Thorax twice as wide as long, sides moderately arcuate and narrow- ing to the front; apical margin with six punctures arranged equidistantly, base ■with four, sides one a£ middle. Elytra luteous, shining, very sparsely and finely punctate, and under high power finely transversely alutaceous, a setiger- ous puncture near the humeri, another at the outer apical angle; form broader than long, slightly wider at apex than at base. Abdomen piceous, sparsely punctulate and pubescent. Body beneath piceous, abdomen as above. Legs and coxse testaceous. Antennae piceous. Length .08 inch; 2 mm. This species is closely related to the European II. capillaricornis, but is smaller in size, less robust, more slender, the elytra are always luteous, the transverse strigae more distinctly marked and the sutural angle less prominent. I have had the opportunity of making com- parisons through the kindness of M. Aug. Salle. The sexes differ in the males having the sixth ventral feebly eraarginate at middle. The last dorsals have not been satisfactorily observed. The specimens before me were collected by Dr. E. A. Schwarz, (to whom it gives me great pleasure to dedicate it), at Detroit, Michigan. Through some unaccountable error of observation I have attributed (p. 81), but ten joints to the antennae of our species. I am very glad to be able to correct the error in the same paper in which it occurs, the antenna3 are eleven jointed. NOTES. 1. — Hi/pocijptus Zieghri^ Lee. From specimens sent me by M. Sall6, I feel constrained to unite this species with longicornis, Payk. The unique of the former is somewhat smaller than the specimen sent by Salle and darker in color, but does not otherwise differ. H. Crotchii is however much more distinctly punctured. 2. — On p. 8o I have associated Trichophi/us and Ilahrorerua, fol- lowing the course of preceding authors. I have lately had an oppor- tunity of examining the former genus and from the insertion of the antennae am convinced that it is rather a member of the group Quedii of the tribe Staphyliuini, allied to AcijJophorus and Ileterothops. It is however rather anomalous in such alliance but no more so than is Ilabrocerus with the Tachyporini. 3. — Types of all the Alaskan species of Tachinus, except apterus^ Makl., as well as several of the Bolitohius have been examined, specimens having been sent to Dr. Leconte by Chaudoir and Man- ncrheira. AMERICAN COLEOPTERA. 125 Bibliography and Synonymy. HYPOCYPTUS Mann. Brachelytra, 1830, p. 58. H. longicornis, Payk., (Scapkidium), Fauna Suec. III., p. 340 ; Mann. Brachel., J). 58; Erichs. Gen. Staph., p 215; Duval Gen. Col. Eur., pi. 9, fig. 42. Zicgkri, Lee, New Species, 1SG3, p. 30. H. Ctotchii, n. sp. ANACYPTUS, n. g. A. testaceus, Lee, {Hypocyptus), New Species, 1863, p. 30. TRICHOPSENIUS, n. g. T. depressus, Lee, {Ut/pocyptus ?), New Species, 1863, p. 30. TACHINTJS Grav. Micr. L, 1802, p. 135. T. macnlicoUis, Miikl., Bull. Mosc, 1852, II., p. 311. T. semirufus, n. sp. T. memnonius, Grav., Micr., p. 192; Erichs., Gen. Staph., p. 258. batychrous, Grav., loe. cit., p. 191. riifus, Saclise, Stettin Zeitschr., 1852, p. 121. T. tachyporoides, n. sp. T. agilis, n. sp. T. angustatus, n. sp. T. debilis, n. sp. T. repandus, n. sp. T. scrutator, Horn. .* discoideus i] Mels., Proc. Acad., 1844, p. 32. Leucoparyphus disc. Lee, List, p. 22. T, mimus, n. sp. T. addendus, n. sp. T. parallelus, «. sp. T. nigricornis, Mann., Bull. Mose, 1843, II., p. 325. T. luridus, Erichs., loe cit., p. 920. Placed erroneously in Coproporus in Munich Catalogue, p. 557, as is also limbatus. flavij)ennis, Dej. Cat. T. canadenBis, n. sp. uslidatus, Fauv. mss. T. fimbriatus, Grav., p. 191; Erichs., p. 258. T. picipes, Erichs., p. 257. T. Schwarzi, n. sp. T. limbatus, Mels., Proc. Acad. II., p. 32. See note under luridvcs. T. fumipennis, Say, Trans. \m. Phil. Soe IV., p. 466. ajrillaris. Erichs., p. 261. colonics, Sachse, Stettin Zeitschr., 1852, p. 121. T. frigidus, Erichs., p. 256. propinquKS, Mann., loe cit., p. 226. T. Crotchii, n. sp. T. instabilis, Makl., Bull. Mose, 1853, III., p. 185. apfcfus, Miikl., loe cit., p. 186. T. circumcinctus, Makl., Bull. Mose, 1852, II., p. 310. T. nitiduloides, n. sp. 126 GEO. H. HORN, M. D. TACHYPORUS Grav. Monogr., 1800, p. 1. T. maculipennis, Lcc, Proc. Acad., 1866, p. 374. T. elegans, u- sp. T. jocosus, Say, Trans. Am. Phil. Soc. IV., p. 466. ardnus, Er., Gen. Staph., p. 237. T. chrysomelinus, Linn., Fauna Suecc. nr. 855; Erichs., Gen. Staph., p. 235. var. acaudus, Say, Trans. Am. Phil. Soc. IV., p. 467. var. maculicolHs, Lee, Proc. Acad., 1866, p. 374. T. californicus, n. sp. {angusticollis, Fauv. mss.) T. nanus, Erichs., Gen. Stai)h., p. 240. T. ? scitulus, Erichs., Kiifer Mark Brand. I., p. 395 j Gen. Staph., p. 240. T. brunneus, Fab., ( Oxyporus), Ent. Syst. I., 2, p. 535 ; Erichs., Gen. Staph., p. 241. faher, Say, Trans. Am. Philos. Soc. IV., p. 468, (European Synon. omitted). CILEA Duval. Gen. Col. Eur. Staph., p. 25. C. silphoides, Linn., (Staphyl), Syst. Nat. I., 2, j). 684; Erichs. Stajib., p. 245; Duval, loc. cit., pi. 10, fig. 46. marginalis, Grav., Micr., p. 192. geminatus, Rand., Bost Journ. II., p. 39. Synonymy not pertinent to our fauna omitted. PHYSETOPORTJS, n. g. P. grossuluB, Lee, {Coproporus), New Species, Col. 1863, p. 31. ERCHOMUS Motsch. Bull. Mosc, 1858, III., p. 218. E. inflatus, n sp. (idem Fauvel. mss.) £. punctipennis, Lee, {Coproporus), New Species, Col. 1863, p. 31. E. ventriculus, Say, {Tachyp.), Trans. Am. Phil. Soc. IV., p. 466. gibbulus, Er., Gen. Staph., p. 252. acuductus, Kby., Fauna Bor. Am., p. 90. affinis, Kby., loc. cit., p. 91. punctulatus, Mels., Proc. Acad. II., p. 32. E. laevis, Lee, {Coproporus), New Species, Col. 1863, p. 31. CONOSOMA Kraatz. Insecten Deutschl. II., p. 431. C. littorenm, Linn., {Staph.), Fauna Suee nr. 852; Erichs., Gen. Staph., p. 219, C. Knoxi, Lee, Proc. Acad., 1866, p. 374. C. crassum, Grav., {Tachyp.), Mierop., p. 190; Erichs., loc. cit., p. 222. muistus, Say, Trans. Am. Philos. Soc. IV., p. 466. C. bisignatum, n. sp. C. castaneum, n. sp., {acutanqulum Fauvel, mss.) C. pubescens, Payk., Mon. Carab. App. 1790, p. 138; Erichs., loc. cit., p. 221 ; (adcps, Zimm., mss.; angustuluin, Fauvel, mss.) C. parvulum, n. sp. C. basale, Frichs., Gen. Staph., p. 225. ■jiu/ir.arius, Sachse, Stettin Zeitsch., 1852, p. 120. C. opicum, Say, {Tachyp.), Trans. Am. Philos. Soc. IV., p. 467. cinctulus, Erichs., Gen. Staph., p. 226. C Bcriptam, n. sp., (Fauvel, mss.) AMEHICAX COLEOPTERA. 127 BOLITOBIUS Steph. Illust. Brit. Ent. V., 1832, p. 171. B. niger, Grav., (Tachhius), Micr. 193, 5; Erichs., (Bolit), Gen. Staph., p. 275. B. axillaris, Grav., (Tachinus), Mon. 29, 11 ; Erichs,, loc. cit., p. 274. B. dimidiatus, Erichs., loc. cit., p. 276. B. cingulatus, Mann., Brachel, 64, 2; Erichs., loc. cit., p. 270. B. intrusus, u. sp. B. cincticollis, Say, {Tachinus), Trans. Am. Phil. Soc. n. s. IV., 465; Erichs., {Bold.), loc. cit., p. 922. bimaculatus, Couper. B. anticus, n. sp. B. pygmaeus, Fah„ {Oxyporus), Spec. Ins. 339; Mann., {Bolit.), loc. cit., 65, 10; Erichs., loc. cii., p. 280. irimaculatiLS, Say, loc. cit., p. 464. venustus, Mels., binotatus, Mels., Proc. Acad. II., p. 33. ay\gularis, Sachse, Stettin Zeitschr., 1852, p. 122. B. trinotatus, Erichs., loc. cit., p. 279. pacilus, Mann., Bull. Mosc, 1852, II., p. 312. B. obsoletas, Say, {Tachinus), loc. cit., p. 464. sellatus, Sachse, loc. cit., p. 122. B, cinctas, Grav., (Tachinus), Micr. 193, 6; Erichs., {Bolit.), ioc. cit., p. 278. atricaudatus, Say, Journ. Acad. III., p. 158. var. fjentili-s, Lee, New Species, 1863, p. 31. B. longiceps, Lee, New Species, 1863, p. 32. B. quaesitor, Horn, rostratus, 1| Lee, New Species, 1863, p. 32. B. biseriatus, Mann., Bull. Mosc, 1846, II., p. 508. Alaska. Unknown. From specimens which I take to be this species collected by Mr. Crotch ia British Columbia, it appears to be merely cincticollis, Say. BRYOPORUS Kr. Nat. Ins. II., 1857, p. 452. B. flavipes, Lee, New Species, 1863, p. 32. B. rufescens, Lee, loc. cit., p. 33. rubidus, Lee, testaceus, Lee, ibid. MYCETOPORUS Mann. Brachelytra, 1S30, p. 62. H. lepidas, Grav., {Tachinus), Mon. 26, p. 4; Mann., {Mycet.), Brachel. p. 63 ; Erichs., Gen. Staph., p. 284. European synonymy omitted. humidus, Say, Trans. Am. Phil. Soc. IV., p. 465. K. tennis, n. sp. M. lucidulus, Lee, New Species, 1863, p. 33. M. consors, Lee, loc. cit., p. 34. M. americanus, Erichs., Gen. Staph., p. 285. M. flavicollis, Lee, loe cit., p. 33. var. pictus Fauvel, mss. M. insignis, Miikl., Bull. Mosc, 1853, III., p. 186 M. nigrans, Miikl., loc. cit., p. I.s7. H. Schwarzi, n. sp. HABROCERUS Er. Kiifer Mark Brand. I., 1837, p. 400. 128 GEO. H. HORN, M. D. EXPLANATION OF PLATE I. Fig. 1. — Trichopsenius depressus, (Lee.) Fig. 2. — Trichopsenius depressus, underside. Fig. 3. — Anaci/ptus testaceus, {hec.) ; 3 a, underside; 3 6, antenna, elytral sculp- ture magnified. Fig. 4. — JL/pocyptus longtcornis, (Payk.); underside and antenna. Fig. 5. — Tachiiius maculicollis, Miikl. ; a, last two veutrals % ; 6, dorsals % ; c, laat ventral 9 > (^> l J^st ventral 9 • Fig. 18. — T. fimbriatus, Grav., a, last two ventrals %; b, last ventral %; c, last dorsal 9 • Fig. 19. — T. picipes, Er., a, last dorsal % ; b, last dorsal 9 • Fig. 20. — T. Schwarzi, Horn, a, last two ventrals %,; b, last dorsal 9 • Fig. 21. — T. canadensis, Horn, last dorsal 9- Fig. 22. — T. limbatus, Mels., last dorsal 9 >and variations of middle lobe. Fig. 23.— T.frigidus, Erichs., last dorsal 9- Fig. 24. — T. Crotchii, Horn, last dorsal 9 • Fig. 25. — T. instabilis, Miikl., last dorsal 9- Fig. 26.— T. circumcinctus, Makl., a, last ventral 9 > ^> '^st dorsal 9 • Fig. 27. — Cilca silphoides, (Linn.), a, last two ventrals % ; b, last dorsal % ; c, last ventral 9- Fig. 28. — Erchomus punctipennis, (Lee.), last two ventrals %. Fig. 2'.>. — E. ventriculus, (Say), last two ventrals % . Fig. 30. — Mabrocerus Schwarzi, Horn, posterior coxae ; a, antenna (after Erichson). Fig. 31. — Underside of head of Bolitobius niger, showing the margin beneath the eyes; a, antenna. Fig. 32. — Head and thorax of Bolit. quctsitor. Fig. 33. — Middle femur and tibia of Conosoma crassum. Fig. 34. — Middle femur and tibia of C castaneum and others. Fig. 35. — Maxillary j)al])i ; a, Bolitobius, (filiform); b, Bryoporus, (conical); c, Mi/cetoporus, (subulate) ; d, Ilabrocerus, (last joint long, slender and acute). AMERICAN HYMENOrTERA. 129 Notes on the species belonging to the snbl'uniily ICHNEUIVIONIDES, found in America north of Mexico. BY E. T. CRESSON. In the first volume of these Transactious Cp. 289), I began the publication of a list of the Ichneuuionidfe of North America, intend- ing to continue it from time to time until completed ; but after the printing of the second part (vol. ii, p. 89), the acquisation of new and more abundant material made it necessary that the work should be gone over again, and suggested many important changes, which render the lists given in the two parts of but little value. I have not since attempted a revision of the subject, prefering to wait for larger collections, and further knowledge of the economy and habits of the species. The great dissimilarity in color between the sexes in many cases — as shown in the European species — renders it extremely diffi- cult and unsafe to corelate them; this, however, can only be deter- mined upon by actual observation and by breeding, and will require years of patient labor, chiefly in the field. In the present paper, which is intended merely to assist the student in separating the species, I have included only those known to me as having been found north of Mexico, which are of themselves very numerous, prefering to make at some future time a separate list of the subtropical species, which exhibit a still greater variation in form. A list of the Mexican species has already been given in the Proceed- ings of the Academy of Natural Sciences, 1873, p. 104, etc. In lieu of a more satisfactory division of the subfamily, I have for the present adopted that given by Holmgren in his Ichncumonologia Suecica, which is as follows : — Metathoracic spiracles linear or oval. Petiole of abdomen not depressed, not broader than high. Abdoii.en 9 acute at tip, last ventral segment retracted ; % ventral seg- ments 2— 4 with longitudinal fold Ichneumonides oxypygi. Abdomen 9 obtuse at tip, last ventral segment slightly or not at all re- tracted ; % ventral segments 3 — 8 or 4 — 8 flat, smuoih, witliout longitudi- nal fold Ichneumonides amblypygi. Petiole of abdomen depressed, broader than high. ...Ichneumonides platyuri. Metathoracic spiracles circular Ichneumonides pneustici. TRANS. AMER. ENT, SOC. VI. (18) JILY, 1877. 130 E. T. CRESSON. Ichneumonides oxypygi. Scutellum more or less flat, or convex and then gradually sloping to apex; nietathorax rarely bispinose ICHNEUMON. Scutellum strongly elevated or gibbous, abruptly declivous behind; nietatho- rax always bispinose H0PH8MENUS. ICHNEUMON, Linn. Under this subgenus, there are at present over two hundred species to record, many of which, on future study and observation, will doubt- less prove to be varieties or sexes of other species already described. In the somewhat difficult task of tabulating such a large number of species it has been found more convenient, and in fact necessary, to separate the sexes ; and color, although quite variable at times, has been found more constant and satisfactory for the principal divisions than form or sculpture. In the females of many species there will be observed on the posterior coxfc beneath, (generally situate near the tip and seen more readily from a lateral view), a scopa or patch of short, more or less dense, brush-like pubescence ; this, while constant in some species, is variable in others, being sometimes distinct or entirely wanting in specimens of the same species. The sculpture of the thorax has little or no significance, while that of the first and second abdominal segments is of some specific value. The sculpture of the postpetiole, or apex of first segment, which is either rugose, aciculated, punctured or smooth, and the shape and depth of the gastrocceli, or basal foveae or depression on each side of second segment, when present, are gene- rally of considerable importance in separating the species. These characters when found to be constant, have been used to advantage in making up the following tables. FEMALES. Abdomen black or blue, without pale bands or spots except sometimes on apex of first or last segments Section I. Abdomen black, marked with white or yellow spots or bands, and sometimes varied with ferruginous Section II. Abdomen ferruginous, apex black Section III. Abdomen ferruginous or fulvous; the first and base or apex of two or three following segments sometimes more or less black Section IV. AMERICAN HYMENOPTERA. 131 Section I. — Abdomcji black or blue, without pale bands or spots exceptt sometimes on apex of first or last segments. Posterior legs black, their tibiise immaculate. Coxal scopa distinct. Apex of abdomen immaculate. Wings fuliginous. Postpetiole scabrous. Coxal scopa rather large, flat ?>. iiiaiiriis. Coxal scopa small, tuberculiform 7. ciiK'f i<*oi'iiis. Postpetiole finely aciculated; coxal scopa small 4. goniiaiius. Postpetiole punctured; coxal scopa large, flat 5. viola. Wings hyaline. Scutellum white; abdomen blaclv tinged with blue 29. a$;iiitus. Scutellum white only at sides; abdomen steel-blue 23. CH^rillcUS. Apex of abdomen with one or more white spots. Posterior trochanters black. Wings fuliginous 2G. SC'Clcstns. Wings hyaline 1>?. Ka^viiS. Posterior trochanters white 41. extreiiiatatis. Coxal scopa wanting. Apex of abdomen immaculate. Wings fuliginous. Scutellum black. Head large subquadrate; posterior angles of metathorax rounded. Pale orbital lines distinct in front above the antennse; gastrocoeli large 1. Ori>hoii««. Pale orbital lines wanting; gastrocoeli small 2. Ka>it*iiis. Head of usual size; posterior angles of metathorax spiniforin. Abdomen deep black; gastrocoeli small, shallow 6. iiialacii!^. Abdomen tinged with blue; gastrocoeli small, deep...i;>. Kolitll!^. Scutellum more or less white. Head large, buccate 1. OrplnMis, var. Head of usual size, not buccate 27. caligiiio.siis. Wings hyaline. Scutellum black. Abdomen steel-blue 22. clialybciis. Abdomen black, sometimes faintly tinged with blue. Postpetiole aciculated I'J. a(or. Postpetiole punctured 20. apcrtus. Scutellum more or less white. Postpetiole broadly dilated. Gastrocoeli small, moderately deep; anterior orbits indistinctly pale 34. subcyaiiciis. Gastrocoeli very large and deep; pale orbital lines entire and distinct 3G. vitalifei. Postpetiole narrower, gradually dilated. Head large, buccate; postpetiole punctured 20. aportlis, var. Head of usual size; postpetiole finely aciculated.. ..37. Ilioiidax. Apex of abdomen with one or more pale spots; scutellum white. Three apical segments each with a pale spot; pale orbital lines distinct in front above the auteuuse 39. truciilcnius. 132 E. T. CRESSON. Two apical segments each with a pale spot; no pale orbital lines. Postpetiole broadly dilated ; thorax, except scutellum, entirely black ; wings smoky 38. biinoiiibris. Postpetiole narrow; collar above, line in front and beneath tegnlse white; wings clear 40. brcviciiictor. Posterior legs black or blue, their tibise marked with white or yellow. Mesothorax brown-ferruginous 11. ccntrator. Mesothorax black. Coxal scopa distinct. Apex of abdomen immaculate. Scutellutn entirely black 16. corviniis. Scutellum black, white only at sides 25. navus. Scutellum white. Coxal scopa very large, covering nearly their entire under surface ; posterior tibise with white line behind near base 46. sagllS. Coxal scopa narrow, linear; posterior tibife with an entire white au- nulus near base 47. proniptus. Apex of abdomen with a white spot 43. stygicttS. Coxal scopa wanting. Apex of abdomen immaculate. Scutellum black. Femora incrassate; pale orbital lines distinct in front above the antennte 4;-,. pravu!^. Femora slender; pale orbital lines wanting 44. pilosulus. Scutellum pale. Metathorax with round white spot on each flank 57. otioi^us. Metathorax immaculate 56. uiiilasciiitoriiis. Apex of abdomen with one or more pale spots 42. atrox. Posterior legs black; coxse, femora and tibise marked and banded with white; abdomen steel-blue '. 24. piilclier. Posterior legs black; base of tibise and the tarsi ferruginous; apex of abdomen with two pale spots 62. gcstuosus. Posterior legs black, their femora ferruginous 65. seinilaivis. Posterior legs ferruginous. Apex of abdomen immaculate 67. pcdalis. Apex of abdomen more or less white 69. Itclvipes. Section II. — Abdomen black, marked with white or r/elloio spots or bands, and some- times varied with ferruginous. Second segment only with two white spots 70. biot'iilatus. Second segment only with white or yellowish band. Coxal scopa distinct 71. unciiiattis. Coxal scopa wanting 72. f oralis. Second and third segments each with a yellowish band. Coxal scopa distinct; two white spots at tip of abdomen.. ..76. calitergns. Coxal scopa wanting. Apex of abdomen immaculate 7.3. bixoiiatiis. Apex of abdomen with white spots 72. feraliM. var. Second, and often third segments with a yellowish band at tip, apical segments ferruginous, also mesothorax and generally the metathorax; fe- mora black 101. subdolus. AMERICAN HYMENOPTERA. 133 Second segment fulvous, a whitish band at tip of segments three, four and six; legs fulvous or ferruginous 102. juciindiis. All the segments with a yellow band at tip. Coxal seopa distinct; face yellow 90. zcbratll!r. Posterior legs black, their tibiae dull-ferruginous 140. liviiatoria9. Metathorax with two white spots behind 5.". siiUIsiliiM, var. Apex of abdomen marked with white.. Ambly. improvisus. Antennte entirely black. Postpetiole entirely black. Scutellum entirely black Ij. iiiaoiloiif lis. Scutellura pale. Apex of abdomen black. Metathorax immaculate. Posterior tibife white or yellow, black at tips. Wings fuscous 5S. Broiifeiis. "Wings subhyaline. Posterior tarsi whitish; all the coxse black 59. aiKlax. Posterior tarsi white, annulate with blat^k; four anterior coxas white 60. ciiicf ilai'Ki*^. Posterior tarsi entirely black, all the coxse white... Ambly. ultus. Posterior tibiae black, with white line above. Face entirely black Ambly. expunctus. Face white laterally, centrally black. Postpetiole coarsely aciculated. Abdomen black, second segment uniformly sculptured ; pos- terior coxse marked with white Ambly. ultus, var. Abdomen blue-black, second segment coarsely and longitudi- nally rugose on basal middle; posterior coxae entirely black Ambly. stadaconensis. Postpetiole smooth or punctured. Sides of face narrowly white 51. COrdatas. Sides of face broadly white. White line on posterior tibise entire. Wings smoky, sometimes clear at base. ..49. viltirrous. Wings hyaline, narrowly dusky at tips 50. recens. White line on posterior tibife not reaching the tip; wings hyaline 34. siibcyaneiis. Face entirely white; wings hyaline 52. jejunilS. Metathorax with two white spots behind 53. s<«iil»latus. Apex of abdomen fulvous, venter and narrow lateral margins of dorsal segments yellowish 63. Ten trails. Postpetiole with white spot or band at tip. Scutellum white only on lateral margins; abdomen blue. ..23. CDCrillciIS. Scutellum white; abdomen black. Metathorax immaculate 54. Azotus. Metathorax with lateral white spot 55. infidclis. Posterior legs black, their coxfe, femora and tibise marked with white. Scutellum white only on lateral margins; abdomen blue; metathorax marked with white 24. piiloltcr. Scutellum white; abdomen black; metathorax immaculate. ..61. oruatipcs. Posterior legs ferruginous. Posterior coxse ferruginous, tips of their femora, tibiae and tarsi entirely black; form slender. Face pale 68. itiierilis. Face black Ambly. illaetabilis. TBANS. AMEn. ENT. SOC. VI. (19) JULY, 1877. 138 E. T. CRESSON. Posterior coxae black. Apical segments of abdomen black, immaculate. Scutellurn black. Face yellow; abdomen robust, opaque 66. siinilaris. Face black; abdomen rather slender and smooth beyond second seg- ment; wings fuscous 07. petlalis. Scutellurn yellow Ambly. luctus. Apical segment of abdomen fulvous; face yellow 64. sipiciilis. Apical segment of abdomen white; face black with sides narrowly pale; scutellurn white posteriorly 69. lielvipes. Section II. — Abdomen black spotted or banded with white beyond first segment and before apex. Second segment only with two white spots 70. bioculatus. Second and third segments each with a spot on each side, and narrow apical margins of third and following segments, white 77. ConsignatilS. All the segments narrowly margined at apex with white. Metathorax and pleura black, with pale markings; posterior femora black; antennae without pale annulus 7S. albomarginatiis. Metathorax and pleura ferruginous, with pale markings; posterior femora ferruginous; antennae with pale annulus 79. ISlandii. Section III. — Abdomen black and yellow, sometimes varied with ferruginous. Apex of abdomen black, with a white spot on last segment 74. texanus. Apex of abdomen black, immaculate. Antennse with pale annulus 75. suadiis. Anteunse without pale annulus. Third segment with indistinct yellowish band at base; wings fuliginous; metathorax entirely black 58. Bronteiis, var. Third segment with broad yellow band shading into fulvous at apex; wings hyaline; metathorax white at tip SO. Dakota. Second and third segments entirely yellow 81. pictif'roilS. Second and third segments yellow tinged with fulvous, third segment with large blackish mark at base 82. bipiinctatus. Second and third segments yellow, varied at base and apex, and some- times centrally, with ferruginous or fuscous 84. Tersabilis. Second and third segments yellow, more or less black at apex. Abdomen shining, postpetiole smooth and polished, gastrocoeli linear; metathorax entirely black 83. Wilsoni. Abdomen opaque, postpetiole aciculated, gastrocceli transverse ; meta- thorax generally more or less yellow 85. COIlies. Second and third segments yellow, more or less black at base. Gastrocceli deep. Size medium, .60 inch 86. trizoiiatns. Size small, .35 inch 91. parvus. Gastrocosli shallow, subobsolete 92. vcscns. Second and third segments yellow, narrowly black at apex, fourth segment ferruginous, postpetiole fulvous 100. salvns. Second to fourth segments more or less yellow, sometimes also postj)etiole. Base of segments 2 — 4 yellow, apex black, first segment entirely black. Gastrocceli deep, the yellow band on fourth segment interrupted medially; size rather large 85. coiues, var. AMERICAN IlYMEN'Ol'TERA. 139 Gastrocoeli subobsolete; the yellow band on fourth segment entire; size small '.»?.. poinilius. Base of segments 2 — 4 black, apex yellow, tips of lirst segment yellow. Large; pale orbital lines entire 87. Iliuiiifieiis. Medium; pale orbital lines interrupted posteriorly 88. Isctiii^. Small; pale orbital lines interrupted posteriorly 'Jl. parvus, var. Apex of abdomen black margined with white or yellow. Mesothorax black, immaculate ; abdomen broad, black with yellow or whitish bands 94. iliirizouutus. Mesothorax black, with median yellow s]wt; abdomen narrow, black, with yellow bands 'JO. zebrafiis. Mesothorax black, with two longitudinal yellow lines; abdomen narrow, slender at base, yellow with black bands itfi. <'<>inptii$$. Mesothorax fulvous, with two longitudinal yellow lines 9:>. iUS. Apex of abdomen fulvous, sometimes marked with white or yellow. Antennae without pale annulus. Postpetiole aciculated. Segments 6 and 6 black, 7 fulvous. First segment entirely black 98. iii<>oii««fans. First segment black, yellow at tip 99. iuC'ucutus. Segments 5 — 7 more or less fulvous or ferruginous. Posterior femora black. Abdominal segments one to three black, with yellow band at apex of each UY.i. xclotypiis. Abdominal segments two to five yellow or fulvous, narrowly black at base 104. creperus. Abdominal segments varied with yellow, ferruginous and black, seg- ments 2 and 3 more or less yellow at base 105. varicgatus. Posterior femora fulvous. Mesothorax black or ferruginous 106. fiirotci* Mesothorax black, with two yellow stripes 107. dclicatus. Postpetiole j)uncturod 89. miiuicus. Antennte with pale annulus. Post])etiole aciculated; ajjical segment fulvous 104. creperns, var? Postpetiole punctured ; ajdcal segment white 110. Ileiligbrodti. Postpetiole smooth and polished; apical segments fulvous. Posterior femora black 108. parattlS. Posterior femora fulvous 109. viiiuulus. Section IV. — Abdomen fulvo-ferruginous, apical margins of sef/mcnts 1 — 4, arid terminal scijment, yellow 11 1. IiOllCStu!^. Section V. — Abdomen bright mffron-ycllow , the three or four apical segments black ; legs entirely yellow 112. niilvus. Section VI. — Abdomen more or less ferruginous, apex alionys black. Segment 3 ferruginous at base, remaining segments black; wihljs subhyaline; face, scutellum and legs yellow Ambly. Quebecensis, var. Segments 2 — 4 more or less ferruginous. Wings fuliginous. Posterior legs black. Scutellum black; the second and third segments of abdomen pale fer- ruginous Ambly. magnus. 140 E. T. CEESSON. Scutcllum white; the second, third and base of fourth segments of abdomen yellowish ferruginous 116. BelTragei. Posterior legs and the second, third and fourth segments of abdomen ferruginous 137. rufiveutris, var? Wings hyaline or subhyaline. Antennae without pale annulus. Scutellum black. Posterior femora black, tibiae yellow, black at tips ; four apical segments of abdomen and the head entirely black 122. cervtllns. Posterior femora and tibise ferruginous, tipped with black: four apical segments of abdomen black; face with pale lateral mar- gins 12.3. decoratus. Posterior femora and tibise ferruginous ; two apical segments of abdomen black; face with pale lateral margins.... 126. limbirrons. Scutellum more or less pale. Posterior coxse black, or black and white. Postpetiole coarsely granulated, not longitudinally rugose; posterior coxae black and white Ambly. electug. Postpetiole very coarsely longitudinally rugose, also the three fol- lowing segments; posterior coxae black 117. procas* Postjietiole finely, distinctly aciculated. Scutellum flat. Posterior femora black; abdominal segments 2 and 3 entirely ferruginous; scutellum entirely white 115. restricttlS. Posterior femora ferruginous; abdominal segments 2 and 3 fer- ruginous varied with fuscous or black; scutellum white only at apex. Face black, clypeus yellow 82. bipnnctatus, var. Face entirely yellow Ambly. Quebecensis. Scutellum convex 160. iii^itabilis. Postpetiole very finely and indistinctly sculptured ; abdominal seg- ments 2 and 3 ferruginous 124. laclirynians. Posterior coxse ferruginous 125. citrifrous. Antennae with pale annulus. Apical segments of abdomen entirely black. Posterior coxae, trochanters and femora black 118. leviculns. Posterior coxse, trochanters and femora ferruginous. ..121. liospitiis. Apical segments of abdomen marked with white 120. tiuitiiuus. Section VII. — Abdomen ferruginous or fulvous, the first and base or apex of two or three following segments more or less black, apex never black. Wings dark fuliginous or black. Antennae without pale annulus. Abdomen ferruginous, segments 1 — 4 more or less black at base; scutellum yellow 142. sncciuctus. Abdomen ferruginous, first segment only black. Posterior legs entirely black. Head large, subquadrate, cheeks convex 135. graudis. Head small, subtriangular, cheeks flattened. Scutellum black; postpetiole aciculated 137. riifiventris. Scutellum with white spot; postpetiole coarsely rugose ; four anterior coxaj white beneath 138. placidus. AMERICAN HYMENOPTERA. 141 Posterior legs black, their tibi£B with white line or spot laterally towards base; seutclhim wliite; scape entirely black 139. deviiictor. Posterior legs black, their femora and tibiae ferruginous; scutellum black. Abdomen brown-ferruginous 137. rufiveutriM, var. Abdomen and legs entirely ferruginous. Thorax black, mesothorax, scutellum and disc of metathorax ferruc;i- nous US. criidus. Thorax entirely ferruginous 146. ciipitu.s. Antenure with pale annulus. Head and thorax black ; abdomen narrow, subcylindrical, segments not constricted at base 141. injSoIeil»i. Head and thorax ferruginous, metathorax and pleura sometimes blackish ; abdominal segments constricted at base 149. trogiroriiiis. Wings hyaline or subhyaline, sometimes pale ferruginous. Antennae without pale annulus. Abdomen ferruginous, basal margin of segments more or less black. Head and thorax black. Posterior legs black, their tibiae yellow, black at tips. First abdominal segment entirely black 151. niiiniOHUS. First abdominal segment black, yellow at apex 104. crcpcfUS. Posterior legs ferruginous; mesothorax more or less dull ferruginous. First and base of second segments of abdomen black; metathorax entirely black 152. (la!«cns. First and second segments of abdomen entirely ferruginous; meta- thorax more or less marked with ferruginous 150. diflicilis. Head and thorax ferruginous, pleura generally black beneath. Gastrocoeli deep, fovei form; postpetiole acieulated 185. loilgiilus. Gastrocoeli linear; postpetiole smooth and polished. ..186. volcns, var. Abdomen ferruginous, first segment only black. Scutellum black. Sides of face white 158. Saiiudersi. Face entirely yellow Ambly. fraternus. Scutellum pale at apex; face entirely whitish 157. vultus. Scutellum entirely white or yellow. Posterior femora black. All the coxae black. Posterior trochanters white 154. TillllleiltllS. Posterior trochanters black Ambly. nubivagus. Four anterior coxae white 153. jillapMiiM. Posterior femora ferruginous 155. nuuciiis. Abdomen entirely ferruginous. Posterior femora black; thorax black Ambly. nubivagus, var. Posterior femora ferruginous; thorax mostly ferruginous. Head black and yellow. Mesothorax black 176. libeilS. Mesothorax ferruginous 199. ulili^i. Head ferruginous, face yellow 191. !>i€*il>iliM. Head entirely ferruginous 195. rilbivuudUH. Antennae with pale annulus. Posterior coxae black, or black and white. Gastrocojli foveiform, transverse or oblique, distinct. Abdomen immaculate, first segment except apex black 166. Tafer. 142 E. T, CRESSON. Abdomen with two basal segments black, apical corners of segments 1 — 4 with white spot 167. lasciTUS. Gastrocoeli elongate, linear, subobsolete or wanting. Clypeus broadly concave; abdomen fulvous, generally with fuscous spots on segments 2 — 4 170. w-albiiui. Clypeus with a more or less distinct medial impression or fovea; abdo- men fulvous or ferruginous, second and following segments not marked with fuscous 171. duplicatus. Clypeus flat or subconvex, not excavate medially; abdomen fulvous, generally more or less marked with fuscous 175. scitulus. Posterior coxse ferruginous. Abdomen with a more or less distinct blackish band. Segments 2 — 4 or 5 narrowly black at base 186. Tolens. Segments 2 and 3 narrowly black at apex 187. propitius. Abdomen without blackish bands. Posterior tibise black, with white annulus; tips of their femora and tibiae entirely blackish 172. annnlatus. Posterior legs entirely honey-yellow; their tibise and tarsi sometimes dusky, but never with pale annulus. Pleura ferruginous; metathorax with two acute spines; head fer- ruginous, face pale, no orbital lines; posterior femora long and slender 192. iiiiicrouatus. Pleura whitish; metathorax with two short subacute spines; head with face and broad orbital lines white; posterior femora short and subrobust 197. facetusi. 1. Orpheus, Cress. Proc. Ent. Soc. Phil, iii, p. 13G, 9 . Ilah. — Mass., Pa. A large, somewhat shining, black species with no pale markings, except a white annulus on antenna3, and ia one specimen a subobsolete spot on tip of scutellum; wings smoky. Length 9 .75 inch. The large, subquadrate head and subsinuate anterior margin of clypeus refer this and the next species to Chasmodes, Wesmael. 2. saucius, Cress. Proc. Ent. Soc. Phil, iii, p. 137, $; Trans. Am. Ent. Soc. i, p. 293. Ilab. — Pa., N. C. A shining black, immaculate species, with a large subquadrate head ; antennae with a broad white annulus; wings fuligi- nous; anterior margin of clypeus sinuate. Length 9 .GO inch. 3. maurus, Cress. Proc. Ent. Soc. Phil, iii, p. 135, 9 . Uab. — Va., N. C, Ga. A large dull black species with blackish violaceous wings, and scabrous postpetiole; antennae with a broad white annulus. A specimen from N. C. has a short white line in front of tcgulae wanting in other specimens. Length 9 .70 inch. AMERICAN HYMENOPTERA. 143 4. germanus, n. sp, 9- — I'till black, mesothorax, scutellum and apex of abdomen shining; a short line on upper anterior orbits, spot at summit of eyes, broad annulus on antennae, interrupted beneath and dot beneath tegulas white; the four or five basal joints of fiagellum subequal and about twice longer than broad; scutellura slightly convex, sparsely and rather strongly punctured, sometimes with two pale spots at tip; central area of metathorax subtriangular with anterior angle rounded; wings uniformly blackish-fuliginous; posterior coxse with a small patch of dense black pubescence at tip beneath; abdomen fusiform, densely and rather strongly punctured on second and third segments, gradually less strongly soon remaining segments; first segment finely longitudinally acicu- lated at tip; gastrocceli large and deep. Length .65 inch. Hah. — Mass., W. Ya., (Ridings), Closely allied to maurus which however has the apex of first abdominal segment scabrous and basal middle of second segment longitudinally striated. 5. viola, Cress. Proc. Eut. Soc. Phil, iii, p. 137, 9 ; Trans. Am. Ent. Soc. i, p. 21)2. Hah. — Can., Pa., Va., Til., Ga., Tex. This is a shining black, immaculate species with dark fusco-violaceous wings, and readily distinguished by the punctured postpetiole; antennae with rather broad white annulus. Length 9 .55 — .05 inch. 6. malacus, Say, Contrib. Macl. Lye. i, p. 72. a/er, Cress. Proc. Ent. Soc. Phil, iii, p. 138, 9 . Hah.— Can., N. Y., N. J., Pa., III. A dull black, immaculate species, with fuliginous wings and broadly fusiform abdomen; pale annulus on antennae rather broad. The gastrocoeli are shallow and rugose. Length 9 .50 — .00 inch. 7. cincticornis, Cress. Proc. Ent. Soc. Phil, iii, p. 139, 9 . Hah. — Can., Mass., Pa., 111., N. C. A slender dull black, immacu- late, dark winged species of which galenus is probably the male; antennae with a broad white annulus. The tuberculiform pubescent patch on posterior coxse will readily distinguish this species. Length 9 .50— .00 inch. 8. galenus, Cre.-^s. Trans. Am. Ent. Soc. Phil, i, p. 292, % . Hah. — Can., Mass., Pa., Ya., 111. A narrow, elongate, dull black, immaculate species, with broad yellowish annulus on antennae and fuliginous wings. Length % .00 — .07 inch. Probably the S of cinctkornis. 144 E. T. CRESSON. 9. torvinus, Cress. Trans. Am. Ent. Soc. i, p. 292, % . Ildb. — Illinois. A rather large dull black immaculate species with narrow pale anuulus ou antennae and fuliginous wings. Length % .70 inch. This and citimus may be sexes of the same species. 10. citimus, n. sp. %■ — Deep black ; sides of face, dot on each side of clypeus, labrum, spot on mandibles, palpi except base, scape beneath, narrow interrupted annulus on middle of antennse and line on four anterior tibiae in front, white; antennae long, slender at tips; thorax rather shining; disc of mesothorax sparsely punc- tured; scutellum convex and strongly punctured; metathorax coarsely rugose, excavated posteriorly, central area semicircular; wings blackish-fuliginous, paler in middle of costal cells and at apex; legs slender; abdomen opaque, rather shining at tip; apex of first segment moderately broad and coarsely longitudinally aciculated, second and following segments confluently punc- tured, gradually less strongly so towards apex, base of second longitudinally rugose, gastrocoeli large and very deep. Length .TO inch. Hah. — White Mts., N. H., (Austin). Allied to torvinus, which has much shorter antennae and the four anterior tibiae annulated at base with white. 11. centrator, Say, Am. Ent. pi. 22, 9. fortis, Prov. Nat. Can. vii, p. 79, $ . Hah. — Can., Pa., N. C. A large dull black species, with dark fus- cous wings and at once recognized by the reddish-brown head, meso- thorax and scutellum; annulus on antennae very broad and yellowish. Length 9 .70 inch. This is probably the 9 oi flavicornis. 12. flavicomis, Cress. Proc. Ent. Soc. Phil, iii, p. 140, S . Hah. — Can., N. Y., Pa. A large dull black immaculate species, with fulvous-yellow antennae and fuliginous wings. Length S .70 inch. Probably the % of centrator. 13. solitus, Cress. Proc. Cal. Acad. Nat. Sci. 1877, 9 . Ilah. — Colorado; Brit. Columbia. A small immaculate black species with purplish-blue abdomen and smoky wings; pale annulus on an- tennae rather narrow. The postpetiole is punctured, and gastrocoeli small, punctiform. Length 9 .30 — .43 inch. 14. scriptifrons, n. sp. S-— I^ull black; face more or less white, sometimes with only upper margin irregularly white; clypeus sometimes with two oblique white marks ; antennae with a white annulus; a short white line before tegulse; tegulte subconvex, punctured; metathorax obliquely truncate behind, lateral angles spiniform, central area small, semicircular or subquadrate; wings tinged with fuscous; AMERICAN HYMENOPTERA. 145 legs slender, four anterior knees and their tibite in front white; abdomen opaque, first segment subopaque, not broad at tip and finely rougliened or aciculate, second and tiiird segments densely j)unctured, fourth less densely so and remaining segments smooth and shining; base of second segment depressed, rugose, gastrocoeli large, shallow, coarsely rugose; apical margin of second and third segments narrowly and subobsoletely dull ferruginous. Length .60 inch. Ilab. — Canada, (Pettit, Saunders). 15. macilentus, Cress. Proc. Ent. Soc. Phil, iv, p. 240, S . Hab. — Colorado. A long, narrow species, with the body dull opaque black, except the niesothorax, thorax beneath and scutellunj, which are shining, the latter polished and iuipunctured ; head small; face, anterior orbits, clypeus, except a brown spot on its anterior middle, mandibles and palpi, lemon-yellow; the antenna) are very long, slender, tapering to a fine point at tip, dull black, basal joint beneath spotted with yellowish ; wings yellowish-hyaline; legs black, coxa3 more or less yellow beneath, anterior and intermediate legs mostly yellow, posterior tibiae with a yellow band at base beneath, and their tarsi yellowish-fuscous; abdomen long and narrow, im- maculate. Length % .GO inch. 16. corvinus, n. sp. 5. — Small, black, shining, feebly punctured; antennre robust, thickened at tip, a narrow white annulus at about the middle, joints three and four short, Bubequal, not twice longer than broad; scutellum flat, broad at tip, sparsely punctured; metathorax with upper face flattened, truncate behind and ex- cavated medially, upper angles prominent, tuberculiform, central area large elongate-truncate, extending the entire length of upper face; wings subhyaline; legs robust, femora swollen, four anterior tibiae and all the tarsi more or less tinf;ed with rufous, all the tibise with a large white spot on outer side rather above the middle, posterior coxte with a small brown pubescent patch at tip beneath ; abdomen broadly fusiform, seiond segment sparsely and more strongly punctured than the third, gastrocoeli small, subobsolete; first segment gradu- ally and rather broadly dilated at tip which is shining and indistinctly acicu- lated. Length .35 inch. 7/a6.— White iMts., N. H., (Morrison). 17. odiosus, Cress. Proc. Cal. Acad. Nat. Sci. 1877, S . llab. — California. A subrobust rather shining black species with entirely black antenna) and a pale spot on each side before the wings; the wings are slightly smoky, and the abdomen is faintly tinged with blue. Length % .GO inch. 18. saevus, Cress. Trans. Am. Ent. Soc. i, p. 290, 9 . Hab. — Illinois. The body is entirely black, except a faint pale line at tip of scutellum and two conspicuous white spots at tip of abdomen. The antenna) have a broad white annulus and the wings TBANS. AMER. E.NT. SOC. VI. (20) JULY, 1877. 146 E. T. CRESSON. are clear; postpetiole smooth and shining with apex punctured. Length 9 .47 inch. 19. ater, Cress. Proc. Eat. See. Phil, iii, p. 138, $ . Hah. — New York. A medium size black species, immaculate ex- cept pale line on anterior orbits and dot before tegulae; antennae with rather broad white annulus and wings faintly smoky; scutellum quite flat and deeply punctured; postpetiole narrow and minutely aciculated ; second and third segments of abdomen densely punctured, the former coarsely aciculated between the gastrocoeli, which are large and deep. Length 9 .57 inch. 20. apertus, Cress. Trans. Am. Ent. Soe. i, p. 293, 9 . Hah. — Can., Ct., N. Y., 111. Closely resembles ater, but rather smaller, with longer antennae and larger head, and easily separated by the punctured postpetiole and less strongly sculptured abdomen. One specimen from Illinois has the apical margin of scutellum pale. Length 9 .50 inch. 21. acerbus, Cress. Trans. Am. Ent. Soc. i, p. 293, % . Hah. — Can., N. H., Mass., 111. A rather small, slender, immacu- late black species with narrow pale annulus on antennae, and hyaline wings. Length % .35 — .50 inch. 22. chalybeus, n. sp. 9 — .Black, shining; metathorax and abdomen steel-blue; upper anterior orbits, interrupted on each side of ocelli, annulus on antennae and anterior tibise in front, white; antennse conspicuously flattened towards apex, third joint twice longer than broad and longer than the fourth; scutellum flat and sparsely punctured ; metathorax opaque, strongly punctured, nearly smooth at base, deeply excavated behind, central area small, quadrate, anterior margin indistinct; wings slightly tinged with brown, areolet smaller than usual, nearly triangular; posterior coxse and femora tinged with blue, their coxse nude be- neath and strongly punctured ; abdomen brilliant steel-blue, smooth and pol- ished at apex, segments two to four with small deep punctures becoming con- fluent on disc; first segment broadly dilated at apex and coarsely punctured; basal middle of second segment longitudinally striated, gastrocoeli large and deep. Length .65 inch. Hah. — Massachusetts, (Ridings). Closely allied to cseruleus which, however, has a distinct pubescent patch on underside of posterior coxae. 23. caeruleus, Cress. Proc. Ent. Soc. Phil, iii, p. 149, 9 . Hah.— Can., Mass., Pa., N. J., Md., Va., 111., Ga., Tex. Easily known by the beautiful steel-blue color of the abdomen, and some- times of the whole body. The % has the abdomen much more coarsely sculptured and more or less opaque and consequently of a less brilliant AMERICAN HYMENOPTERA. 147 blue color; the face and clypeus are entirely white, as well as the scape beneath, and in two specimens from Ga., the posterior femora have a broad white stripe on outer side. The postpetiole has a white spot on each side at tip, sometimes subobsolete or wanting. A single 9 from Va., has the body entirely of a brilliant steel-blue color, with no pale markings excepting narrow, interrupted orbital lines and a dot on each side of scutellum. Length % 9 .45 — .70 inch. 24. pulcher, Brull6, Hym. p. 304. Hab. — Can., N. Y., La. This handsome species is closely allied to cseruleua, but is more robust, the thorax and legs much more elabor- ately ornamented with white, and the posterior coxse of 9 are destitute of the pubescent scopa seen in cseruleus. Length % 9 -^^^ inch. 25. navus, Say, Bost. Jour. Nat. Hist, i, p. 229. cinctipes, Prov. Nat. Can. vii, p. 51, 9 . ITab. — Can., Pa., Md., 111. A rather small species, with a more or less bluish tinge on the abdomen ; the orbits, spot on each side of clypeus, palpi, annulus on antennae, collar, sutural line in front of wings, a line on each side of scutellum, spot on four anterior coxae beneath, all the trochanters, an annulus on the tibiae at base and another on base of tarsi, all white; coxal scopa distinct; wings hya- line. The male has the face, clypeus and all the coxae entirely white ; flagellum entirely black. Length % 9 .40 — .45 inch. 26. scelestus, Cress. Proc. Ent. Soc. Phil, iii, p. 148, 9 . Ilab. — Illinois. Only a single specimen of this distinct species has been observed. It is easily distinguished by the short antennae, uniform dark fuscous wings and smooth finely punctured abdomen. The antennae have a white annulus; a spot on scutellum and. two spots at tip of abdomen are the only pale markings of the body. The post- petiole is smooth on the disc and punctured on the sides j coxal scopa distinct. Length 9 .50 inch. 27. caliginosus, Cress. Proc. Ent. Soc. Phil, iii, p. 144, 9 . Hub. — Col., 111. A dull black species, with white scutellum, broad white annulus on antennae and fuliginous wings. The head is nar- rowed towards the mouth. Length 9 .55 inch. 28. histricus, Cress. Trans. Am. Ent. Soc. i, p. 294. S . ffab. — West Virginia. A large dull black species, with fuligi- nous wings. Sides of face and of clypeus, annulus on antennae, scape beneath, line before wings and scutellum whitish. Length % .75 inch. 148 E. T. CRESSON. 29. agnitus, Cress. Proc. Eut. Soc. Phil, iii, p. 151, 9 . ILib. — Del., 111., Tex. The abdomen of this species has a faint bluish tinge; the orbits, two dots on clypeus, a broad white aunulus on antennae, line before wings, spot on scutellutn and spot or line at tip of postpetiole are all white ; postpetiole punctured ; wings sub- hyaline ; coxal scopa distinct, whitish. Length 9 .56 inch. 30. pepticus, n. sp. %. — Large, black, rather shining, face, except black central stripe dilated on clypeus, orbits, interrupted behind summit of eyes, sides of clypeus, base of mandibles, palpi, scape beneath, upper margin of prothorax, spot on tegulse, line beneath, spot on scutellum, sometimes a dot behind, si)ot on four anterior coxae beneath, line on four anterior femora and their tarsi beneath, and some- times a spot at tip of first abdominal segment, all white or yellowish-white; wings subhyaline, smoky on apical half; postpetiole longitudinally rugose; gastrocoeli large and deep. Length .75 — .80 inch. Hah. — N. J., III. This may prove to be the % of Orpheus. It differs from vitti'frons chiefly by the immaculate posterior tibiae. 31. pervagus, n. sp. %. — Black, subopaque, abdomen tinged with blue; face entirely, clypeus ex- cept central black spot, base of mandibles, orbits, palpi, scape beneath, collar, upper margin of prothorax, tegulse, short line beneath, spot on scutellum, four anterior coxse more or less beneath and their femora and tibiae beneath, white; wings faintly tinged with fuscous; abdomen densely punctured, smooth at tip, postpetiole and base of second segment longitudinally rugose, gastrocoeli large and deep. Length .63 inch. ^a6.— Canada, (Pettit). 32. citatus, Prov. Nat. Can. ix, p. 8, S . Hah. — Can., N. H. A slender black species, with sides of face, annulus on antennje, scutellum and spot at tip of abdomen white; wings hyaline, faintly clouded at apex; postpetiole smooth and pol- ished ; gastrocoeli large and deep. Length %, .52 inch. 33. merus, n. sp. %. — Black, subopaque; orbits broad on face and interrupted behind summit of eyes, sides of clypeus, spot on base of mandibles, scape beneath, broad annu- lus on antennae, collar, up{)er margin of prothorax, spot on tegulae, short line beneath, scutellum, sometimes spot behind, round spot on flanks of metathorax, spot on anterior coxse, line on their femora beneath, four anterior tibiae beneath, apical margin of first abdominal segment, sometimes a small s})ot on each side of second segment at tip and apical margin of sixth or seventh segments more or. less, white : wings hyaline, faintly dusky at apex ; postpetiole narrow, smooth and shining, second and third segments densely punctured, roughly so on base of second, gastrocoeli large and deep. Length .52 inch. Hah. — Mass., Va., (Ridings). It is probable that specimens of this species will occur with apical margins of all the abdominal segments more or less white. AMERICAN IIYMENOPTERA. 149 34. subcyaneus, Cress. Proc. Ent. Soc. Phil, iii, p. 148, 9 . j>)ii/(ifHs^ Cress. Proc. Eat. Soc. Phil, iii, p. 14G, % . I[„b.— Can., Me., Mass., N. Y., N. J., Pa., Del., Ga., 111., Col., Tex. The abdouien of this species is more or less strongly tinged with blue or purple, and is finely punctured and shining, the postpetiole broad and punctured and the gastrocoeli small and moderately deep. Annu- lus on antennaj and scutellum white; wings subhyaliae. The % has the sides of the face and clypeus, orbits, tegulae, line before, scutellum, dot behind, tips of four anterior femora and line on all the tibiae, white ; the flagellum is entirely black ; the abdomen longer and narrower. Length % 9 .35 — .GO inch. 35. neutralis, Cress. Proc. Cal. Acad. Nat. Sci. 1877, S . Ilab. — California. This has much the appearance of a large speci- men of siihrj/aneiis % , but the scape beneath and the posterior legs are entirely black. Length S .05 inch. 36. vitalis, n. .sp. 9- — Black, abdomen tinged with blue and shining at tip; orbits of eyes, dilated towards mouth, lateral angles of clypeus, palpi, annulus on antennae, interrupted beneath, collar, upper margin of prothorax, short line beneath tegulse, two short lines on disc of mesolhorax, large square spot on scutellum, spot on four anterior co.xae and trochanters beneath, extreme tips of their femora and anterior tibiae in front, all white; antennse flattened towards apex, third joint more than twice longer than broad and slightly longer than fourth; scutellum flat, sparsely punctured and' broadly truncate at tip; central area of metathorax transversely semicircular, not well defined; wings clear hyaline; femora robust, posterior coxae beneath nude and finely punctured, tibial spurs whitish; abdomen fusiform, slightly tinged with blue, finely punctured, apical segments smooth and shining; first segment broadly dilated at tip, longitudi- nally aciculate and sparsely punctured; basal middle of segments two and three longitudinally striated; gastrocoeli very large and deep. Length .43 inch. Hob. — New York. Allied to subcyaneus but very distinct by the ornamentation of the head and the stronger sculpturing of the abdomen. 37. mendax, n. sp. 9. — Black, subopaque, finely punctured; rather broad anterior orbits ex- tending from summit of eyes to a little below antennae, palpi, narrow annulus on antennae, collar, upper margin of prothorax, short line beneath tegulae, square spot on scutellum, tips of anterior femora and their tibiae in front, white; antennae rather stout, with third joint more than twice longer than broad and distinctly longer than fnurtli; scutellum flat, polished, feebly punc- tured, broadly truncate at tip; metathorax coarsely punctured, central area large subquadrate with sides rounded, jiosterior face broadly, not very deeply excavated: wings hyaline; femora rather stout, posterior coxae nude beneath, finely and closely punctured, tibial spurs pale; abdomen fusiform, segments two and three closely and finely punctured, remaining segments indistinctly 150 E. T. CRESSON. punctured and shining; first segment gradually, not broadly dilated at tip which is finely longitudinally aciculated; gastrocoeli snaall and deep. Length .40 inch. Hah. — Can., Mass. DiiFers from suhcyanevs by the more slender form, by the black and more closely and finely punctured abdomen, and by the narrower and finely aciculated postpetiole. 38. bimembris, Prov. Nat. Can. ix, p. 8, 9 . Hah. — Canada. A medium sized, robust, dull black species, with no pale markings on body except the scutellum and two spots at apex of abdomen ; the antennae have each a brotid yellowish-white annulus, and the wings are uniformly pale yellowish-fuscous. Length 9 .50 inch. 39. truculentus, n. sp. 9. — Opaque black, strongly and confluently punctured; upper anterior orbits, annulus on antennse, short line before and one beneath tegulse, scu- tellum entirely and large spot on disc of three apical segments of abdomen, white; antennse robust, strongly involute, third joint scarcely twice longer than broad, and longer than the fourth which is nearly square; cheeks con- fluently punctured and flattened; scutellum broad, flat, sparsely punctured, rapidly narrowed to tip which is truncate; metathorax deeply excavated be- hind, central area long, subquadrate; wings uniformly yellowish-fuliginous; legs robust, tarsi rufo- fuscous, four anterior tibise tinged with brown, the an- terior pair and tips of femora pale rufo-fuscous in front, posterior coxse nude beneath and strongly punctured; abdomen closely and strongly punctured on segments two and three, confluently soon middle and base of third segment, apical segments gradually less strongly punctured ; first segment broadly dilated at tip and longitudinally aciculated; gastrocoeli rather large and very deep. Length .45 inch. Hah. — White Mts., N. H., (Austin). Stouter and more coarsely sculptured than brevicinctor which it somewhat resembles. 40. brevicinctor, Say, Am. Ent. pi. 22. Hah. — Can., iMass., N. J., Del., Md., Col. A small, slender, dull black species with pale annulus on antennae, white scutellum and two white spots at apex of abdomen ; wings subhyaline. Closely allied to extrematatis which has the basal joint of posterior trochanters white; in this species it is black. Length .35 — .50 inch. 41. extrematatis, Cress. Proc. Ent. Soc. Phil, iii, p. 149, 9 . PhyyaJeuon niger, Prov. Nat. Can. vi, p. 280, 9 . Hah. — Can., N. H., Mass., 111., La. A small dull black species, with annulus on antennas, scutellum, hasal joint of posterior trochan- ters, and spot at tip of abdomen, white ; wings smoky ; coxal scopa 9 distinct. Length % 9 .38 — .48 inch. AMERICAN HYMENOPTERA. 151 42. atrox, n. sp. 9. — Robust, black, opaque, mesothorax, scutellum and apex of abdomen shining; annulus on antennre, scutellum, anterior tibise, intermediate pair except tip, broad anuulus on posterior pair, and spot on middle of two apical segments of abdomen, white; antennae short, stout, strongly involute, third joint not twice longer than broad and longer than fourth which is nearly quadrate, apical joints attenuated; upper anterior orbits narrowly reddish; mesothorax confluently punctured; scutellum broad, flat, polished, impunc- tured, apex truncate; metathorax opaque, rugose, posterior face rather deeply excavated, lateral carina prominent, central area large, quadrate; wings uni- formly brown, stigma yellowish-brown, nervures black; legs rather robust, four anterior tarsi more or less brown, posterior coxae pubescent beneath, but without a distinct scopa; abdomen clougate-ovate or broadly fusiform; first segment rather broadly dilated at tip and longitudinally aciculated; second and third segments closely punctured, strongly so at base of second and more feebly on third and following segments; gastrocoeli moderately large and deep. Length .70 inch. Hub. — Canada. A very distinct species. 43. stygicus. siffuafipes, Prov. (nee Cress.), Nat. Can. vii, p. 52, 9 . Hab. — Can.. Mass. This is a robust black species with smoky hya- line wings; annulus on antennae, scutellum, annulus at base of all the tibiae, and spot at apex of abdomen, white ; the coxal scopa distinct. Length 9 .50 inch. 44. pilosulus, Prov. Nat. Can. vii, p. 25, 9 . Hub. — Can., Mass. A subrob'ust black species, with no other markings except a white annulus on flagellum and a white spot near base of all the tibiaj; wings clear; postpetiole narrow, punctured; gastrocoeli subobsolete, feebly indicated, second and base of third segments closely punctured, remainder impunctured, shining. Length 9 .45 inch. 45. pravus, n. sp. 9. — Dull black, mesothorax, scutellum and apex of abdomen shining; upper anterior orbits, palpi, narrow annulus on antennre, narrow upper margin of pro- thorax, sometimes interrupted spot beneath tegulse, sometimes apex of scutellum and elongate spot on outer side of all the tibire, white; clypeus and mandibles more or less tinged with ferruginous; antenna; short, stout, with short robust joints, third and fourth joints equal in length and each about one and a half times longer than wide; mesothorax and scutellum si)arsely punctured and polished, the latter flat and broadly rounded behind ; metathorax opaque, scabrous, posterior face deeply excavated, lateral angles prominent, central area elongate subquadrate, rounded anteriorly; wings faintly tinged with brown; legs short, robust, femora swollen, tips of anterior femora, their tibife and tarsi tinged with ferruginous, posterior coxte beneath nude, sparsely punc- tured ; abdomen oblong-ovate; first segment rather broadly dilated at apex, with the surface even and finely roughened; second segment closely and finely 152 E. T. CRESSON. punctured more sparsely so toward apex, gastrocoeli shallow and longitudi- nally striated; third and following segments sparsely punctured or smooth and shining. Length .40 — .45 inch. Hah. — Can., (Pettit); Mass., (Ridings). Closely allied to sngus and pilosuhis ; from the former it differs by the posterior coxae be- neath being destitute of the pubescent patch, and from pilosulits by the much stouter legs, and from both by the shorter and stouter basal joints of the flagellum. 46. sagus, Cress. Trans. Am. Ent. Soc. i, p. 294, 9 . Hub. — Illinois. A shining black species, with annulus on an- tennae, line on posterior orbits 9 j ^'^ beneath antennae, orbits and scape beneath % , dot or line before tegulce, spot on scutellura, and line on all the tibiae, white j wings clear or faintly dusky; coxal scopa 9 very large, covering nearly the entire under surface. Length S 9 .45 — .55 inch. The % described with 9 of this species, proves to belong to a new species next described (prompfus), and differs from the true % of sacjus principally by the scape being entirely black and the posterior tibiae having an entire white annulus. 47. promptus, n. sp. 9- — Black, iiiesolhorax, scutelluni and apex of abdomen shining; annulus on antennse, scutellum and rather broad annulus on all the tibiis interrupted on two anterior pairs, white ; upper anterior orbits sometimes narrowly reddish ; cheeks swollen ; antennte short, robust, with short, thick joints, third joint about one and a half times longer than broad and subequal with the fourth, the joints beyond annulus thickened; mesothorax sparsely punctured; scutellum broad, flat, with a few scattered punctures, broadly truncate at tip, metathorax strongly punctured, posterior face broadly not deeply excavated, lateral angles promi- nent, central area nearly quadrate; wings tinged with fuscous, rather darker at tips; legs robust, femora short, swollen, tips of anterior tibiaj and their tarsi brown, apex of {)osterior coxjb beneath with a patch of short dense brown pubes- cence; abdomen oblong ovate, second segment closely an(i finely punctured, sparsely so at tip, third indistinctly punctured and remaining segments smooth and shining; first segment broadly dilated at apex and sparsely punctured; gastrocoeli subobsolete. Length .46 inch. ^. — Face entirely, clypeus, spot on mandibles, palpi, orbits interrupted anteriorly below ocelli and more or less on the cheeks, a narrow annulus on antennfe, collar, upper margin of prothorax, short line beneath tegulte, scu- tellum, four anterior tibiae more or less and a broad annulus on posterior tibise, all white; scutellum rather convex; elevated lines on metathorax sharply defined, the central area rounded anteriorly; wings darker at apex than in female; abdomen more densely punctured, apex of first segment narrow, base of second rugose, the gastrocoeli large, not deep but coarsely rugose; body, antennae and legs much more slender than in female. Length .55 inch. Hab. — Mass., (Ridings); White Mts., N. H., (Morrison)- Sepa- rated at once from sar/us by the white annulus on posterior tibiae AMERICAN HYMEXOPTERA. 153 being entire and not interrupted behind ; the basal joints of the flagellum are shorter and stouter. In sagus $ the pubescent patch on posterior coxae covers nearly the entire under surface. In sar/ns % the scape beneath is white, while in promptus it is black. 48. vagans, Prov. Nat. Can. vii, p. 51, % . Hah. — Canada. Slender, black, shining; face, clypeus, mandibles, palpi, orbits, slightly interrupted, annulus on flagellum, scape beneath, margins of prothorax, line beneath wings, tegula?, scutellums, four an- terior coxce and trochanters and legs in front, all white ; posterior tibiae pale, black at tips, tarsi dusky, pale at base of joints ; wings hyaline ; postpetiole flattened, indistinctly sculptured ; gastrocoeli indicated by a rugosity, not deep. Length % .-40 — Ah inch. 49. vittifrons, Cress. Proc. Ent. Soc. Phil, iii, p. 143, % , Hah. — Del., Va., Ga. A beautiful species, of rather large size, shining black, with the orbits, face except a broad black stripe down the middle, spot on each side of clypeus, mandibles, palpi, scape be- neath, tegulaj, a line before and a short one beneath, scutellum more or less, a small spot behind, four anterior coxae beneath, most of their tibiae and tarsi, a line on their femora at tips within, tips of all the femora and a line on the posterior tibiae exteriorly, all white; antennae long, slender at tips, the flagellum entirely black ; wings fuliginous, with a brilliant purplish reflection, sometimes conspicuously hyaline or subhyaline at base ; abdomen slightly tinged with blue, shining, rather closely and uniformly punctured, postpetiole punctured. Length % .70 — .75 inch. 50. recens, n. sp. %. — Slender, black, rathei" shining ; orbits, slightly interrupted at summit of eyes, face except a black spot on middle forming a stripe and extending to tip of clypeus, sides of clypeus, spot on mandibles, palpi, scape beneath, upper margin of prothorax, two short lines on disc of mesothorax, tegulse, short line beneath, scutellum, dot behind, a dot on each side before, spot on four anterior coxse beneath, stripe on their femora, their tibife and tarsi in front, tips of pos- terior femora, a line on entire length of their tibise behind and a stripe on basal joint of their tarsi, all white; wings hyaline, fuliginous on apical margin; abdo- men tinged with purple, closely punctured, especially ut base of segments, post- petiole sparsely punctured, gastrocoeli large and deep. Length .62 inch. n, % . var. Jschitiis proximiis, Cress, id. p. 187, % . Hah. — Can., N. H., Mass., Pa., Va., 111. This is a slender rather shining, black species, with the face, orbits, clypeus, mandibles, palpi, scape bem^ath, upper margin of prttthorax. teguke, line beneath, some- times a .spot on disc of mesothorax, .scutellum. spot behind, two spots on metathorax behind, four anterior coxtc, their femora within, their tibiae and tarsi entirely, sometimes a spot at tip of posterior coxae beneath, basal half of their tibiae, and base of their tarsi, all white; antenna? very long and slender; wings hyaline; abdomen narrow, cylindrical, postpetiole narrow, smooth and shining; gastrocoeli shal- low. Length % .50 — .60 inch. The ww'xGiy pro.iinins has a whitish annulus on flagelluiM a little beyond the middle, the hind coxae are black beneath, but almost entirely white above, and the postpetiole has two white s{>ots <»r a band at tip. 54. Azotus, Cress. Proc. Ent. Soc. Phil, iii, p. 150, S . Jlah. — Mass., ^Del., Va. This very pi'etty species has a slender form, and rather largo head. It is of a dull black color, the abdomen which is cylindrical, having a decided bluish tinge; the wings clear, slightly clouded at tips; the face, broad orbits, clypeus, mandibles, palpi, scape beneath, upper margin of ]»rothorax, two short lines on dise of mesothorax. teguUe, line beneath, scutellum, spi>t behind, four AMERICAN HYMENOI'TKRA. 155 anterior coxae, and trochanters, their feinora at tips aud beneath, their tibiae and tarsi in front, a line on posterior tibia? and tarsi exteriorly, and a trilohetl hand at tip of pttstpetiole, all white ; "the scutelluiu is flat; the postpetiole sparsely punctured, shining, second, third aud iburth segments densely punctured ; gastrocoeli large and very deep. Length % .55 — .65 inch. 55. infidelis, Cress. Trans. Am. Ent. Sec. i, p. 296, I . Hah. — Mass., Ot. A rather large subrobust black species, with abdomen tinged with blue towards apex which is smooth and shining, while the second, third and fourth segments are longitudinally striated on the middle; the head and thorax are marked as in Azotna, except that the clypeus has a central black spot, the pleura has two white spots beneath wings, the anterior one transverse, the posterior one round, and the flanks of metathorax have a large rounded white spot; wings clear; anteunsE long, entirely black ; postpetiole broadly white at tip. and the third segment is stained with dull yellow on apical margin ; the legs are considerably ornamented with white, the pos- terior femora having a white stripe above, which is unusual. Length % .t;0 inch. 56. unifasciatorius, Say, Am. Ent. pi. 22. iiiyrr. lirulle, llvm. p. 302. Jfab. — Can., Mass., Pa., Md., Ga., 111. This common species is of a deep dull black color, the abdomen of 9 often slightly tinged with blue; anterior orbits, aiinulus on anteun*, tegulse, a line before and short one beneath, scutellum and sometimes a spot behind, a stripe on all the tibi^e exteriorly and tip of postpetiole, all white; the % has the face white, generally more or less marked with black, and the clypeus is white, markeosterior tibise and base of their tarsi yellowish ; otherwise marked as in 9- JIab. — Can., White >lts., N. H, Specimens may be found with the two pale spots on second abdominal segment confluent and form- int; a band. AMERICAN HYMENOPTERA. 159 Tl. uncinatus, n. sp. 9- — Robust, (lull black; broad ahnulus on antennae, scutelUini, anterior knees in front, their tibiae, intermediate tibiiB except tips, broad aunulii3 on posterior pair, a dot on each side of apex of 6rst abdominal segment, a band on a|>ex of second and a spot on middle of three apical segments, all white; anteunre short, robust, strongly involute, joints short, the third not twice longer than broad and subeciual with the fourth; scutellum broad, very slightly con- vex, smooth, polished, and impunctured. apex truncate; metathorax oblit«d medially and dilated laterally; tlagellum slender, entirely black; scutellum convex ; wings clear; abdomen finely punctured, postpetiole punctured, gastrocoeli rather deep. Length .37 inch. Hub. — Texas, (Belfrage). A pretty little species. 160 E. T. .CRESSON. 75. suadus, n. sp. ^ . — Small, slender, black ; orbits, face, clypeus, mandibles, palj)i, scape beneath, annulus on flagellum, line on collar, tegulse, line before, short one beneath, scutellums, spot behind posterior wings, a zigzag mark on posterior face of metathorax, four anterior coxse, all the trochanters, four anterior legs in front, basal half of posterior tibiae, their tarsi, and apical margin of first and second abdominal segments, extending up on sides of second segment, all yellowish- white; antennse nearly as long as the body, slender; abdomen deli- cately punctured, postpetiole narrow, nearly smooth, gasthoeoeli subobsolete, indicated by a pale spot; apex of abdomen piceous. Length .40 inch. Hah. — Canada. This species has remarkably long antennae. 76. calitergus. Cress. Trans. Am. Ent. Soc. i, p. 299, 9 . Hah. — Maine. A robust dull black species, with stout antennae and fusco-hyaline wings; annulus on flagellum, scutellum, band on tibiae, band on three basal segments of abdomen and two spots on apical segments yellowish-white ; coxal scopa distinct. Length 9 .50 inch. 77. consignatus, Cress. Trans. Am. Ent. Soc. i, p. 298, % . Hah. — Mass., VV. Va. A dull black species, easily recognized by the white markings of the abdomen which are as follows : a longi- tudinal spot on each side of second and third segments and apical margins of fourth and following segments except the last, broad on the seventh; the apical margin of the third segment is sometimes nar- rowly white ; wings clear, dusky at tips. Length %, .57 inch. 78. albomarginatus, Cress. Trans. Am. Ent. Soc. i, p. 297, % . Hah. — Mississippi. A black species with clear wings, and apical margin of all the segments more or less, white; the band on post- petiole is broad, that on second segment narrow but entire, on the three following segments the bands are still narrower and abbreviated laterally, while on the two apical segments they are dilated into spots ; face, clypeus, mouth, orbits, scape beneath, upper and anterior margins of prothorax, tegulse, line beneath, stripe on pleura anteriorly, spot on disc of mesothorax, scutellums, two spots on metathorax, four anterior legs in front and band at base of posterior tibiae, all whitish. Length % .50 inch. 79. Blandii, Cress. Proc. Ent. Soc. Phil, iii, p. 188, % . Hah. — Pennsylvania. This pretty species is black, with the pleura, metathorax and legs fulvous; the antennae are nearly as long as the body, with a broad white annulus; the face, orbits, two short lines on disc of mesothorax, a sutural line on each side, the tegulae and a line beneath, anterior margin of the collar, a spot on each side of the meso- AMFRICAN nVMENOT'TERA. Kil thorax behind the tepruUe, lateral and apical margins of the seutellum, postscutelluui, a large mark on each side of pleura, four anterior coxae and trochanters, the tarsi, the apical margins of the abdominal seg- ments, and the apical segment entirely, all white; posterior tibiie and base of tarsi blackish ; the wing.s are clear ; the base of the metathorax above is blackish. Length % A'2 inch. 80. Dakota, Cress. Trans. Am. Ent. Soc. i. p. 302, % . Hab. — Dakota Territory. A dull black species with clear wings and a single yellow band on abdomen, (third segment), shading into pale ferruginous po.steriorly ; the face, scutellums. posterior foce of metathorax aud most of legs are yellow; antennae black above, pale beneath. Length % .50 inch. 81. pictifrons, Cress. Proc. Ent. Soc. Phil. iii. p. KJO, % . 1^(76.— Colorado. A small slender species, with the second and third abdominal segments entirely yellowish-ferruginous; the face is whitish marked with black, and the scutellum aud most of tibiae yel- lowish ; wings subhyaline. liCngth % .42 inch. 82. bipunctatus, Cress. Proc. Ent. Soc Phil. iv. p. 253, S . VAT. /estus, Cress, id. p. 257, % . ■ Hah. — Colorado. In the type the head is entirely black with two yellow spots on clypeus ; the thorax entirely black except a yellow dot on teguhi% another beneath and one on tip of scutellum; legs yellow, coxae and trochanters black, and femora and tips of posterior tibiae fulvous; second and third segments of abdomen yellowish-ferruginous, the former pale at base and the latter with a large fuscous stain at base. The \auety /e.sfux differs by the clypeus being yellow except a black spot at tip, and the second and third abdominal segments being dull ferruginous, stained with fuscous; wings subhyaline. Length % .55 inch. 83. Wilsoni. Jscltnus Wilsoni, Cress. Proc. Vjat. Soc. Phil, iii, p. 188, % . Hab. — N. J., Del., Va. A small, elongate, slender, shining black species; the abdomen convex and cylindrical with the se<*ond and third segments entirely yellow except narrow black apical margin; the an- tennae are black above, pale beneath ; face, scutellum aud most of legs yellow; wiugs yellowish-hyaline. Length % .40 — .50 inch. 84. versabilis, n. sp. %. — Dull black; line on anterior orbits, face, clypeu.s, mandibles, labrum, palpi, scape beneath, anterior margin of tegulse, line before, another beneath, Ecutellutn, sometimes a spot or line behind, dot on four anterior coxa and TBASS. AMER. ENT. SOC. VI. (22) JILY, 1877. 162 E. T. CRESSON. trochanters beneath, their knees, tibiae and tarsi, anterior femora in front, pos- terior tibise and tarsi except tips, sometimes two dots or a line at tip of first abdominal segment, and the second and third more or less, all bright yellow ; occasionally the base of second and third segments is margined with dull ferruginous, and the apical middle more or less varied with black, sometimes interrupting the yellow on third segment into two spots and in one specimen these are reduced to mere dots and the yellow on second segment interrupted medially by a black line; wings subhyaline; postpetiole aciculated ; gastrocoeli large and deep; antennfe more or less pale beneath; posterior femora some- times pale at base. Length .45 — .55 inch. Hah. — Can., Me., N. Y., Va. This is quite a variable species, closely allied to comes which however has a more finely sculptured abdomen. 85. comes, Cress. Proc. Ent. Soc. Phil, iii, p. 158, % ; Trans. Am. f^nt. Sec. i, p. 301. Hab.— Can., Me., N. H., Mass., N. Y., Pa., Va., 111. This is au extremely variable species but easily recdgnized by the yellow second and third abdominal segments, which are more or less black at apex ; in some specimens the third segment is entirely yellow, and the black band on second segment very broad ; the postpetiole is always black, rarely with a yellow dot on each side at tip ; in the variety aleatorius the fourth segment has an interrupted yellow band at base. The metathorax varies from almost entirely yellow to entirely black; the scutellum is calways yellow and the legs quite constant in coloration ; the mesothorax has sometimes a spot or two short yellow lines on the disc and in one specimen two entire stripes. Some specimens have fuscous wings, these will probably prove to be varieties of Bronteus, and a large series of specimens is required to decide whether or not they are both one and the same species. Lengths .50 — .65 inch. * 86. trizonatus, Prov. Nat. Can. ix, p. 8, % . Hah. — Canada. This species has a broad yellow band at apex of the three basal segments of the abdomen. It closely resembles comes, but the postpetiole is broader, the gastrocoeli are larger and deeper, and the colors on second and third segments are reversed, i. e., black at base and yellow at apex. Length S .55 inch. 87. munificus, Cress. nohilis, Cress, (nee Wesm.), Proc. Ent. Soc. Phil, iii, p. 155, S . Hah. — N. Y., 111. This fine species has the appearance of a large fat specimen of Ixtus which it resembles in color and markings. Length % ,65 — .75 inch. AMERICAN HYMENOPTERA. 163 88. laetus, BrulU', Hym. p. 303; Cress. Trans. Am. Ent. Soc. i. p. 300. pnratus, Say, Eost. Jour. Nat. Hist, i, p. 228, S . //a6.— Can., N. H., Mass., N. Y., N. J., Pa., Del., Md., Ya. Thi.s is our commonest species. The second, third and fourth segments of abdomen are yellow, more or less broadly banded at base with black ; the postpctiole is always yellow at tip -occasionally the yellow on fourth segment is interrupted so as to form two spots sometimes reduced to dots, or entirely wanting; the mesothorax has often two short lines or a spot on the disc, and the metathorax varies from almost entirely yellow to entirely black. Length % .GO — .65 inch. 89. mimicus, Cress. Trans. Am. Ent. Soc. i, p. 300, % . Hah. — Can., Mass., N. Y., Ct. This is smaller than laetus, with the abdomen more convex, the postpetiole broader and nearly smooth and the apical segments more or less distinctly fulvous at tip ; otherwise it is colored much the same. Length % .45 inch. 90. zebratus, Cress. Trans. Am. Ent. Soc. i, p. 299, $ ; iv, p. 156, % . Hah. — 111., Ga., Tex. This pretty little species has a broad yellow band at apex of all the abdominal segments; face, orbits, line before, wings, spot on disc of mesothorax, scutellums, large mark on sides of pleura, posterior half of metathorax except median black spot behind and most of coxa), also yellow ; legs fulvo-ferruginous; wings tinged with yellowish; the flagellum of antennae 9 has a white aunulus, that of S is entirely black; coxal scopa $ distinct. Length S 9.35 — .-10 inch. 91. parvus, Cress. Proc. Ent. Soc. Phil, iii, p. 159, % . Hah. — Mass., N, Y., Va., 111. This little species is about one-half the size of Isttus, and is colored almost exactly like that species and seems to be subject to the same variation in color. The mesothorax has sometimes two short lines or a spot on its disc ; the metathorax is often more or less varied with yellow and the fourth abdominal segment is sometimes entirely black ; the gastrocoeli are deep and well marked. Length % .30 — .40 inch. 92. vescus, Prov., Nat. Can. ix, p. 9, S . Huh. — Can., N. H., N. Y. This is the same size as parvus and resembles that species very much in color, but is at once distinguished by the subobsolete gastrocoeli. It much resembles some well marked specimens of paratus, Say. Length % .30 — .40 inch. 164 E. T. CRESSON. 93. pomilius, Prov. Nat. Can. ix. p. 9, S . Hah. — Can., Mass., B. Col. A loug, narrow black species with the second, third and fourth segments of abdomen yellow, more or less tinged with fulvous, a broad black band at apex of second and narrow apical margins of third and fourth segments, black ; antennae blackish above, pale beneath ; face, tegulae, scutellura, four anterior coxse and all the trochanters, yellow; four anterior legs except femora behind, base of posterior tibiae and of their tibiae fulvous-yellow; wings clear; a variety from .Mass. has the middle of third and fourth .segments varied with black. Length % .35 — .40 inch. 94. flavizonatus, Cress. Proc. Knt. Soc. J*hil. iii, p. 150. nvdior, Cress. Trans. Am. Ent. Soc. i, p. 299. % . Hab. — Can., N. Y.. Del., Va. This is a dull black species, with the face, tegulae, line before and another beneath, scutellura, two spots on metathorax, legs and apical mwards the apex ; basal two-thirds of the first segment above, the basal one-half or one-third of the second, third and fourth segments, and the remaining segments except their apical margins, black ; some- times the basal black band on the third segment is ij[uite narrow, while all the others are broad. Length % .50 — .55 inch. This may be the % of atrifrons. 97. atrifrons. Cress. Proc. Ent. Soc. Phil, iii, p. 157, 9 ; Trans. Am. Kn(. Hoc. i. p. 298. Hah, — Pa.. 111. This species has much the same graceful form as compiits. of which it may be the 9 , the abdomen being narrowed and very slender at bsuse ; the face is entirely black, the anteuuaj slender, with a white aonulus on flagellum ; anterior orbits, two slender stripes on loesothorax, scutellum, two large spots on metatborax, coxae, and band at tip of all the abdominal segments, yellow; legs fulvo-ferrugi- Dous; wings yellowish-hyaline. Length 9 .50 inch. 98. inconstans. Cress. Proc. Ent Soc, Phil, iii, p. 153, S . Hith. — C«Worado. An elongate rather narrow black species with the face, clypeus, scutellum, most of legs, and the second, third and fourth abdominal segmetiLs, yellow; the second and third segments more or less varied with fulvous at tip, and the yellow on fourth seg- ment contracted and interrupted medially; the two apical segments are fulvous; wings yellowish-hyaline; po.sterior cox?e. their femora, and tips of their tibiae black. J^ength % .55 inch. 166 E. T. CRESSON. 1)1). infucatus, Cress. Proc. Ent. Soc. Phil, iv, p. 252, % . Hub. — Col., Cal., Vancouver's Island. This is a black species, with the face, clypeus, scape beneath, tegulge, spot before and beneath, scutellum, legs (except coxae, posterior femora and tips of their tibias) tips of first abdominal segment and the three, following segments more or less, yellow ; ope specimen has two yellow spots on metathorax pos- teriorly; the basal margin of fourth abdominal segment is generally more or less black, occasionally also the base of third and rarely that of second ; one specimen has the second and third segments and sides of the face of a beautiful rosy-fulvous, color, another specimen has the second, third and fourth segments entirely yellpw; apex of abdomen always fulvous; wings smoky-hyaline. Length % ^45— r.55 inch. This and incoiistuns may prove to be varieties of (he same species. 100. salvus, Cress. Proc. Cal. Acad'. Nat. Sci. 1877. HaU. — Vancouver's Island. This rather large species is black with the face, clypeus, scape beneath, tegula3, line in front, scutoUumj spot behind, four anterior coxae and legs, posterior tibias and tarsi and sec- ond and third abdominal segments yellow; posterior coxae and femora and third abdominal segment fulvous ; posterior margin of second, third and Iburth segments narrowly blackish; apex of postpetiole fulvous, yellow laterally ; mesothorax has tWo indistinct dull ferruginous longi- tudinal lines; wings yellow-hyaline. Length % .65 inch. 101. subdolus, Cress. Trans. Am. Ent. Soc. i, p. 298, $. Hub. — Can., Me., Mass. A very robust species, with short, stout antennae, the joints of which are short and thick. The vertex, meso- thorax, metathorax except flanks, tibiae, tarsi, postpetiole and apex of abdomen are ferruginous; annulus on flagellum, scutellum and band at apex of Second and third segments of abdomen are yellowish, some- times the postpetiole has a yellow dot on each side ; wings fusco-hyaline, with a golden gloss. Length $ .55 inch. 102. jucundus, BruUe, Hym. p. 305. Hub. — Can., Me., N. Y., Pa. This handsome species is shaped like subdolus^ and is easily recognized by the fulvous second abdominal seg- ment, while the third, fourth and sixth are black with a yellow band at tip ; the antennae are short, thick and tricolored — fulvous-yellow and black, and the legs are fulvous ; wings fusco-hyaline. Length 9 .45 — .55 inch. This may be the 9 o^ Jlavizonatus. AMERICAN HYMENOPTERA. 1G7 103. zelotypus, Cress. Trans. Am. Ent. Soc. i, p. 299, % . Ilab. — West Virginia. A rather large dull black species with a yellow band on tips of the three basal segments of abdomen, the re- maining segments are ferruginous, with a blackish band at base of the fourth, very narrow in one specimen; wings yellow-hyaline. Length % .55 — .70 inch. 104. creperus, Cress. Trans. Am. Ent. Soc. i, p. 298, % . Ilab. — Can., W. Yd. This pretty species has the abdomen fulvous with a narrow black band at base of the segments, the postpetiole is always yellow; in all the specimens the metathorax is yellow above, and the po,«teiior coxa;, femora except extreme base and tips of their tibiae are black; one specimen has the abdomen yellow-fulvous. Length % .55 — .GO inch. A specimen from Virginia, and probably a variety of this species, has a narrow dull yellow annulus on flagellum, the posterior femora fulvous, and the tips of second and third abdominal segments yellow ; the postpetiole fulvous and yellow, and the cheeks are bi'oadly yellow. Length % .62 inch, 105. variegatus, Cress. Proc. Ent. Soc. Phil, iii, p. 153; iv, p. 25L, I. Hah. — Col., N. Mex., Cal., Van. A rather slender and extremely variable species, black, with the face, scutellum, metathorax more or less and mostX)f the legs yellow; wings clear; abdomen varied with yellow, ferruginous and black, scarcely any two specimens being colored alike. Length % .45 — .60 inch. For remarks on the variation of this species see Proc. Eut. Soc. Phil, iv, p. 251. 106. Grotei, Cress. Proc. Ent. Soc. Phil, iii, p. 154, S . ITdh. — Col., 111. A long, rather narrow species, with the abdomen of three colors — black, fulvous and yellow, the base being black, the middle fulvous, shadidg into yellow to the tip of the segment; the apical segments lose the bright yellow color and are fulvous and black; the thorax is more or less varied with fulvous both above and beneath; the face- and scutellum yellow, and the metathorax almost entirely yel- lowish-fulvous; the wings are yellowish hyaline and the legs fulvous and yellow. Three specimens from Illinois are of a duller color than those from Colorado. Length % .55 — .60 inch. 107. delicatus, Cress. Proc. Ent. Soc. Phil, iv, p. 253, % . Hah. — Colorado. A delicate. looking species both in shape and color. It is lemon-yellow, with the vertex, occiput, antennoc, spot 168 E. T. CRKSSOX. on each side of pectus, mesotborax, except two dorsal lioes, sides of scutelluna, broad BUtares of pleura, and the basal middle of abdominal segments four to »ix, black ; the femora and delicate stains on the abdomen fulvous; wings yellowish hyaline, with the nervures pale fulvous. Length % .50 inch. This may be a very pale variety of Grotei. 108. paratus, Say. Tontrib. Macl. Lye. i, p. (58, % \ Cress, (hckitus), Vroe. Ent. Soc. Phil, iii, p. 156, % . nab. — Can., N. Y.. Pa., Del., Va. A pretty little species, slender in form and exceedingly variable in its markings. The head is yellowish-whit* ; with the vertex and occiput black; antennae long, slender, black above, fulvous beneath, with a more or le^s broad whitish annulus beyond the middle and with the basal joint beneath yellow ; thorax black, shining, with the upper and lower margins of prothorax, a spot on disc of mesotborax, sometimes wanting, tegulae and a line beneath, scutellum, postscutellum, posterior portion of metathorax and a large spot on the thorax beneath between the four anterior legs ar>d extending more or less upon the sides, all yellowish- white; wioga clear; four anterior legs, including their eoxai, yellowish- white, posterior coxse varied with yellowish beneath, their trochanters, base of femora, basal two-thirds of their tibiae and the apical joints of their tarsi, yellowish-white ; abdomen yellowish-white, apical half more or less fulvous, first segment smooth and polished, slender, black above before apex, remaining segments with a black, oft^eu irregular, stain on the middle, s»>metimes forming a regular band, sometimes two spots; these stains become less distinct on the apical segments, which are sometime.s entirely fulvous; beneath yellowish, fulvous at tip. Length S .'M) — .40 inch. 109. vinnulus. hthnux vinnulus, Cress. Proc. Ent. Soc. Phil, iii, p. 189, %, . Hdh. — F*a., Va. This may po.ssibly be nothing but a variety of paratus ; the markings are very similar, but the posterior femora are fulvous and not black, the first .segment of the abdomen is black except its tip, and the basal two-thirds of the second aud third seg- ments are also black. Length S .40 — .45 inch. 110. Heiligbrodtii, n. -sp. %. — SiiiaJl, bliick; lace, cl_vj)en3, orbits, spot on maiirliblen, scape beneath, anniiluH on dagelluin, line on collar, upper margin of prothorax, spot on tegulse, short Jine above, another beneath, two slender linea on disc of inesothora.x, scutellum, spot behind, jiosterior face of metathorax, spot on flanks, spot above middle cox», tipa of fwir anterior coxse, spot on posterior pair above, apical AMERICAN HYMENOPTERA. 1G9 margin of abdominal segments one to four, that on second deeply emarginate on anterior middle and that on fourth very narrow and interrupted, line on apex of sixth and the seventh entirely, all white; posterior margin of cheeks, sides of prothorax, pleura, sides of metathorax, legs and abdomen, except base of second and third segments, ferruginous; wings hyaline; postpetiole punc- tured ; gastrocoeli rather deep. Length .35 inch. Hab. — Bastrop, Texas, (L. Heiligbrodt). Allied to Jionestus. 111. honestus, Cress. Trans. Am. Ent. Soc. i, p. 310, S . Hab. — W. Va., Ga. A very pretty species easily recognized by the fulvous abdomen, with the first four segments margined at tip with yellowish, and the apical segment entirely yellowish; legs ful- vous; head and abdomen black and white; antenna3 black above, pale beneath, with broad whitish annulus above; wings hyaline. Length I .42 inch. 112. milvus, Cress. Trans. Am. Ent. Soc. i, p. 305, % . C/opini; l^rov. Nat. Can. vii. p. 250, S . Hab. — Can., N. H., Mass. A long, narrow black species with honey-yellow antennae, scutellum, legs and abdomen, except last three segments which are black; the face and coxae are pale-yellow and the wings yellowish-hyaline. Length S .05 inch. 113. volesus, Cress. Trans. Am. Ent. Soc. i, p. 30-4, $ . Hab. — Massachusetts. A robust black species, with the second and third segments of abdomen entirely ferruginous, and the two apical segments each with a white spot; coxal scopa distinct. Length 9 .45 inch. 114. involutus, Cress. Proc. Ent. Soc. Phil, iii, p. 183, 9 . Hab.. — Colorado. A small shining black species, with the mandi- bles, scape beneath, legs, scutellum obscurely, and second and third abdominal segments ferruginous ; antennae short and strongly invo- lute; postpetiole punctured on disc; gastrocoeli obsolete; wings sub- hyaline. Length 9 .85 inch. 115. restrictus, n. sp. % .—Black, rather slender, subopaque ; face, clypcus, mandibles, palpi, scape beneath, tegulse, short line before, another beneath, scutellum, spot on four anterior coxse beneath, four anterior legs, posterior tibite except tips, and their tarsi, yellow; four anterior femora fulvous behind, posterior femora sometimes fulvous within ; wings subhyaline; second and third segments of abdomen fer- ruginous, densely punctured; postpetiole narrow, aciculated; gastrocoeli small and deep. Length .60 inch. Hab — New York. This may prove to be an extreme variety of instabilis. TBASS. AMER. ENT. SOC. VI. (2.3) JULY, 1877. 170 E. T. CRESSON. 116. Belfragei, Cress. Trans. Am. Ent. Soc. iv. p. 15G, % . Ilab. — Texas, (coll. Belfrage). Black ; sides of face and of elypeus, dot on tegula3 anteriorly, short line beneath and scutellum, white ; wings uniformly pale fuliginous ; anterior tibiae pale in front ; abdo- men shining, second, third and base of fourth segments yellowish- ferruginous. Length .50 inch. 117. procax, n. sp. %. — Rather large, opaque deep black, roughly sculptured,- face except mid- dle, elypeus, spot on mandibles, spot on scape beneath, tegulje, spot in front, another beneath, scutellum, dot on outer side of four anterior coxae, spot on their trochanters, their knees, and tibise and tarsi entirely, posterior tibi'sa except tips and their tarsi except extreme tips of joints, white or yellowish- white; scutellum gibbous, subangular in profile, the basal excavation very deep ; mesothorax coarsely not closely punctured ; metathorax roughly sculptured, with coarse elevated lines; wings subhyaline, tinged with yellowish; legs slender; abdomen long, rather narrow, coarsely and longitudinally rugose, second, third and fourth segments dull ferruginous, yellowish beneath, gas- trocoeli large and deep. Length .65 inch. //a6.— Canada. 118. leviculus, n. sp. %. — Black; abdomen except the first and last one or two segments, fer- ruginous; sides of face and elypeus broadly, spot on mandibles, palpr, orbits, spot on scape beneath, broad annulus on antennse, upper margins of prothorax, dot on tegulse, line beneath, scutellum, dot behind, two spots or dots on meta- thorax behind, four anterior coxae beneath, spot at tips of posterior pair and narrow posterior margin of postpetiole, white; wings hyaline, slightly dusky at tips; four anterior legs except femora behind pale, base of posterior tibise more or less ferruginous; abdomen narrow, finely punctured, postpetiole punc- tured, gastrocceli deep. Length .40 inch. Hub. — N. Y., Va. Resembles some of the dark varieties of dupli- cutus. 119. terminalis, Cress. Proc. Ent. Soc. Phil, iii, p. 184, 9. JIab. — Delaware. A small robust ferruginous species, with head, pro- and mesothorax, most of pleura, tips of posterior femora and of their tibiae and apex of abdomen, black ; annulus on antennae, scu- tellum and two spots on apex of abdomen yellowish-white. Length 9 .80 inch. This is probably the 9 of Jinitimtis. 120. finitimus, Cress. Trans. Am. Ent. Soc. i, p. 304, % , (not 9 ). var. 31esostemcs cqyicah's, Prov. Nat. Can. vii, p. 2G0, % . Ilab. — Can., N. H., N. Y., Pa., 111. A small, long, slender species, with black antennae, head, thorax and tip of abdomen ; legs and three or four basal segments of abdomen, and occasionally the metathorax AMERICAN HYMENOPTERA. 171 ferruginous; annulus on flagellum, anterior orbits, clypeus, scutelluni, four anterior coxaj and spot at tip of abdomen, white. Length S .30— .37 inch. This may be the % of terminalis. 121. hospitus, Cress. Trans. Am. Ent. Soc. i, p. .30G, % 9. Hah. — Can., 111. A small black species with legs and three basal segments of abdomen ferruginous, the latter finely punctured and shining; annulus on antennae, scutellum and face of % yellowish; antenna3 9 thickened towards tips, base ferruginous, middle whitish, apex black, third joint about twice longer than broad and longer than fourth ; antennae % long, black above, fulvous beneath ; tips of pos- terior femora, and of their tibiae more or less black ; wings subhyaline. Length % 9 .30 inch. 122. cervulus, Prov. Nat. Can. vii, p. 83, % . Hah. — Canada. A small black species with second and third ab- dominal segments pale ferruginous, and the tibiae and tarsi more or less yellowish ; wings subhyaline ; head and antennae entirely black, the latter short and sometimes pale at tips beneath. Length % .30 — .35 inch. 123. decoratus, Prov. Nat. Can. vii, p. 83, S . Ilalj. — Cau., Mass. Same size and general appearance of cervulus, but has ferruginous legs, and the sides of face and clypeus are white. Length % .30 inch. 124. lachrymans, Prov. Nat. Can. vii, p. 78, % . Bab. — Can., N. H. Closely re.sen)bles cervulus but has the face, clypeus and scutellum yellow ; same size. 12.5. citrifrons, Cress. Trans. Am. Ent. Soc. i, p. 307, S . J/ab. — Ct., Pa. A small black species, with face, scutellum, and the four anterior coxae and trochanters pale yellow ; the legs including posterior coxa; and second and third abdominal segments yellow fer- ruginous ; apical half of posterior femora and tips of their tibiae black ; antennae long and fulvous, darker above; wings clear. Length % .20 inch. 126. limbifrons, Cress. Proc. Ent. Soc. Phil, iii, p. 182, % . Hah. — Colorado. A small slender black species, with the legs except base, and abdomen except apex, ferruginous; lateral margins of face and dot on each side of clypeus, white; wings clear; post- petiole narrow, punctured, gastrocoeli small, deep, punctiform. Length I .30 inch. 172 E. T. CRESSON. 127. vecors (yentralis, Cress. Trans. Am. Ent. Soc. i, p. 308, 9 .) Hah. — Hudson's Bay Territory. A small robust black species, with anterior orbits, mouth, scutelluni and three basal segments of abdomen, ferruginous; antennae yellowish ferruginous, black at base and apex, the joints very short and thick-set; legs varied with black and yel- lowish; wings clear; abdomen convex, base of first and third and lateral basal margin of second segment black. Length 9 .3.3 inch. 128. nigrovariegatus. Phygadeuon iugi-ovariegatus, Prov., Nat. Can. vii, p. 182. 9- — Small, robust, ferruginous ; face, cheeks, thorax especially laterally, and apex of abdomen, varied with black; antennae short, ferruginous, with short, Bubmoniliform joints, three to five subquadrate, subequal, middle joints paler, apical ones black; scutellum flat; metathorax with indistinct elevated lines; wings tinged with dusky, the areolet broad five-angular; legs short, robust, especially the femora which are swollen, coxae, four anterior femora behind, posterior pair entirely and tips of their tibiae, black ; abdomen shining, sparsely punctured, postpetiole broad, smooth ; gastrocoeli small, shallow. Length .25 inch. Ilah. — Canada, (coll. Provancher). 129. humilis, Prov. Nat. Can. vii, p. 82, 9 . var. Phygadevon dorsalis, Prov. Nat. Can. vi, p. 285, 9 . Hah. — Canada, (coll. Provancher). This is probably nothing more than a variety of yiigrovariegatus with less black markings. 130. tumidifrons, Cress. Trans. Am. Ent. Soc. i, p. 311, 9. Hab. — Illinois. A very small ferruginous species with short pro- tuberant face ; head, apex of antennfe, metathorax, tips of posterior femora and tibiae, and apex of abdomen black; annulus on flagellum, scutellum and spot on tip of abdomen white. Length 9 .20 inch. 131. seditiosus, n. sp. 9. — Subrobust, black; antennae except apex and scape beneath, mandibles, mesothorax, scutellum, tegulae, legs except coxae and trochanters, and three basal segments of abdomen, ferruginous; wings fusco-hyaline; an tennre robust ; legs slender; abdomen broadly fusiform, densely punctured, postpetiole broad, aciculated, gastrocoeli large and deep, apical segments smooth and shining. Length .50 inch. //ai.— Colorado, (B. H. Smith). 132. indemnis, Cress. Proc. Cal. Acad. Nat. Sci. 1877. Hub. — British Columbia. A ferruginous species with the thoracic sutures, tips of posterior femora and of their tibiae, apical margins of abdominal segments two to four, and the remaining segments entirely, black. Length % .40 inch. AMERICAN HYMENOPTERA. 173 133. caudatus, Prov., Nat. Can. vii, p. 82 9 . Phi/ijad<:uon tcnninalis, Prov. Nat. Can. vi, p. 284, 9 . Ilab. — Can., Mass. A subrobust ferruginous species, with posterior femora, tips of their tibia;, and fourth and following segments of ab- domen black; scutellum and two spots on tip of abdomen whitish j antennae long and slender. Length 5 .43 inch. 134. putus, n. sp. $. — Small, pale ferruginous, finely punctured, rather shining; antennae slender, apical third fuscous, third and fourth joints subequal in length, the third being little the longer; posterior femora except base, tips of their tibiae and the fifth and following segments of abdomen black; wings hyaline; legs slender; abdomen depressed, second and third segments closely and uniformly punctured, postpetiole and apical segments smooth and shining, gastrocoeli small and deep; apical margins of two apical segments whitish. Length .35 inch. Ilab. — Connecticut. 135. grandis, Brulle, Hym. p. 300. ri.gnatrix, Cress. Proc. Ent. Soc. Phil, iii, p. 178, 9 • amhifjuus, Cress. Proc. Ent. Soc. Phil, iii, p. 161, % . Hab.— Can., Mass., N. Y., Pa., Del., Ga., Col., Van. This is our largest species ; it is of a deep black color, with the abdomen except first segment ferruginous, and the wings dark fuliginous and violaceous. The scutellum has sometimes a white spot, and the postpetiole is occa- sionally ferruginous. The % has the face, clypeus, spot on mandibles, scape beneath, short line before tegulae, dot beneath, generally a spot on scutellum and the anterior legs in front, white. The 9 has a white annulus on flagcllum, and the coxal scopa is distinct. Length S 9 .70—1 inch. 136. inurbanus, Cress. Trans. Am. Ent. Soc. i, p. 302, 9 . Hdh. — W. Va., Col. A miniature of grandis, but more shining and less strongly sculptured ; the postpetiole is finely aciculated ; the gastrocoeli rather small and the second segment evenly and not con- fluently punctured; the posterior coxae are nude beneath. Length 9 .55 inch. 137. rufiventris, Brulle, Hym. p. 301. var. inccrtus, Cress. Proc. Ent. Soc. Phil, iii, p. 180, 9 • semicoccineus. Cress. Proc. Ent. Soc. Phil, iii, p. 179, % . var. rah'fornicus, Cress. Proc. Ent. Soc. Phil, iii, p. ISO, % . Hub.— Can., Mass., Pa., N. J., Del., Md., Va., 111., Cal. Much smaller than (jrandU, the 9 with slender antennae, broadly fusiform abdomen and posterior coxa) nude beneath. A 9 specimen from 111. 174 E. T. CRESSON. has a pale spot on the scutellum, and a % from Can. has the last two segments of abdomen black. The 9 var. incertus has the legs, except coxse and trochanters, ferruginous. The % var. californicus has dark brown abdomen and ferruginous legs. Length % 9 .50 — .70 inch. This species has been found to be parasitic on Vanessa Hunteri. 138. placidus, Prov. Nat. Can. vii, p. 76, % . Hah. — Canada, (coll. Provancher). Size and appearance of rnfi- ventris, % . Black; abdomen dark ferruginous beyond first segment; face, clypeus, scape beneath, short line before tegulas, dot beneath, spot on disc of scutellum, four anterior coxae and trochanters beneath more or less, anterior tibijB and femora before, and tips of middle femora before, white ; wings violaceous-black ; metathorax rugose, with sharply elevated lines, central area subreniform, large; postpetiole large, broad, coarsely rugose ; gastroeoeli large and deep, black. Length .65 inch. 139. devinctor, Say, Am. Ent. pi. 22. tibialis, Brulle, Hym. p. 300. montivagus, Cress. Proc. Eut. Soc. Phil, iv, p. 255, % . Hab. — Can., Pa., Del., Md., Ga., 111., Col. A rather large species with red abdomen, pale scutellum, and white annulus on tibiae and antennae 9 . The % closely resembles that of grandis, but separated at once by the scape being entirely black and by the white spot 00 posterior tibiae near base. Length % 9 .55 — .80 inch. 140. lividulus, Prov. Nat. Can. ix, p. 10, 9 . Hub. — Canada. A robust species near rufiventris, but differs from that species by the conspicuous whitish scutellum, shorter and stouter antennae, paler wings, and ferruginous tibiae and tarsi. Length 9 .65 inch. 141. insolens, Cress. Trans. Am. Ent. Soc. i, p. 302, % 9 . Joppa canadensis, Prov. Nat. Can. vi, p. 336, % . Hab. — Can., N. C, Ga., Fla., La., Tex. A narrow, subcylindrical black species, with posterior femora and abdomen dark ferruginous, blackish wings and white annulus on antennae. Length % 9 -^5 — .65 inch. This may be the Joppa maurator, Brull*i, Ilym. p. 287. 142. succinctus, Brulle, Hym. p. 301. Hah. — Can., N. Y., Pa., Md., 111., La. This species is easily recog- nized by the ferruginous abdomen banded with black, pale scutellum, yellow tibial and tarsi and blackish wings ; the black bands on abdo- men vary much in width. Length % .60 — .65 inch. AMERICAN HYMENOPTERA. 175 143. dorsalis, Cress. Proc. PiQt. Soc. Phil, iii, p. 177, 9 . Hdb. — Colorado. A robust black species with clypeus, mesothorax, scutellum and abdomen ferruginous ; wings fuscous ; postpetiole broad and aciculated; gastrocoeli moderately large and deep. Length 9 .55 inch. 144. Le\visii, Cress. Proc. Ent. Soc. Phil, iii, p. 177, 9 ; Trans. Am. Ent. Soc. i, p. 307. var. sandix, Cress. Proc. Ent. Soc. Phil, iii, p. 174, 9 . Hub — N. Y., Va., Ga., 111. A dark winged ferruginous species, with the pleura, metathorax, coxse, and generally a band at base of third abdominal segment, black ; the antennae are slender and tri- colored — ferruginous at base, broadly yellow medially and black at tip ; sometimes the thorax is entirely black except two stripes on mesothorax and scutellum; the var. sandix has the thorax above and abdomen entirely ferruginous. Length 9 .55 inch. 145. purpuripennis, Cress. Proc. Cal. Acad. 1877. Hab. — California. A rather stout ferruginous species with fusco- violaceous wings ; antenna) short, stout, with apical half or two-thirds black; the basal margin of abdominal segments three and four are sometimes narrowly black. Length 9 .50 inch. 146. cupitus, Cress. Proc. Cal. Acad. 1877. JFTab. — California. This is probably the % 0^ purpuripennis ; color entirely ferruginous with antennae except scape beneath, and sutures of thorax more or les.s, black; wings fuscous; face yellowish. Length % .55 inch. 147. compar, Cress. Proc. Cal. Acad. 1877. Hab. — Vancouver's Island. An elongate robust ferruginous species, with fuscous wings : antennae stout ferruginous, paler medially and black at tips; closely allied to purpziripe^mis, but more elongate and differently shaped. Length 9 .52 inch. 148. crudosus, Cress. Proc. Cal. Acad. 1877. Ilab. — California. An elongate ferruginous species, witli blackish wings, black head and thorax beneath; face yellow; legs entirely fer- ruginous. Length S .(35 inch. 140. trogiformis, Cress. Proc. Eat. Soc. Phil, iii, p. 175, % ; Trans. Am. Ent. Soc. i, p. 307, 9 . Hub. — N. J., Ga., Fla., La., Tex. Easily recognized by the fer- ruginous body, broad blackish wings, unusually large head and strongly constricted abdominal segments; the metathorax, pleura and posterior 176 . E. T. CRESSON. legs are sometimes more or less varied with black ; the antenn£B have a yellowish annulus in both sexes, sometimes indistinct; coxal scopa 9 distinct. Length S 9 .40 — .50 inch. This may be the Joppa ferrugator (Fabr.) Brulle, Hym. p. 295. 150. difficilis, Cress. Proc. Cal. Acad. 1877. Ilab. — Van., Cal. A ferruginous species, with head, antennae, thorax more or less, coxae, tips of posterior tibiae and basal margin of abdominal segments three to five, black; face yellow; wings dusky; mesothorax, scutellum and metathorax more or less ferruginous ; first segment of abdomen entirely ferruginous. Length % .60 inch. 151. animosus, Cress. Proc. Ent. Soc. Phil, iii, p. 164, % . var. rubellus, Cress. Proc. Eut. Soc. Phil, iv, p. 254, S . Hab. — Col., N. Mex. A slender black species, with face, clypeus, scape beneath, tegulae, scutellum, four anterior legs, basal half of pos- terior tibiae and their tarsi yellow; wings clear; abdomen ferruginous, with first segment entirely and base of remaining segments more or less black. The var. rubellus has paler abdomen and the metathorax is more or less yellow behind. Length % .50 inch. 152. discus, Cress. Proc. Ent. Soc. Phil, iii, p. 168, S . Ilab. — Colorado. Closely allied to animosus^ but the legs, except coxae and trochanters, are entirely yellowish-ferruginous; the meso- thorax is more or less dull ferruginous; the second and following ab- dominal segments are narrowly black at base. Length % .50 inch. 153. allapsus, Cress. Proc. Ent. Soc. Phil, iv, p. 256, S . Ilab. — Colorado. A black species, with the abdomen entirely dull ferruginous, except the first segment which is black; wings clear; face, clypeus, scape beneath, tegulae, scutellum, sometimes two spots on metathorax behind, four anterior legs, posterior tibia) except tips, their tarsi and ventral fold, bright lemon-yellow. Length S .55 — .60 inch. 154. vinulentus, Cress. Proc. Ent. Soc. Phil, iii, p. 162, S . Ilab. — Colorado. Larger than allapsus which it closely resembles, but differs principally by the pule markings being white instead of lemon-yellow, and by all the coxa; being black. Length % .65 — .70 inch. 155. nuncius, Cress. Proc. Cal. Acad. 1877. Hab. — California. Resembles allapsus, but the abdomen is paler in color; the posterior femora and tibiae except tips and apex of postpetiole, are ferruginous; apex of metathorax, scutellum, face, and AMERICAN HYMENOrTERA. 177 four anterior coxae and trochanters are lemon-yellow j wings clear. Length S .55 inch. 156. virginicus, Cress. Proc. Ent. Soc. Phil, iii, p. 181, 9 . Hah. — West Virginia. A medium sized, robust black species, with short ferruginous abdomen and clear wings; antennae short, stout, with white anuulus; legs robust, short, posterior tibiae reddish at base; head and thorax immaculate. Length 9 .50 inch. 157. vultus, Cress. Proc. Ent. Soc. Phil, iii, p. 1G5, % . ILib. — Colorado. A small slender black species, with ferruginous abdomen and legs ; face and apex of scutellum yellow ; wings clear. Length % .35 inch. 158. Saundersii, n. sp. %. — Black; anterior orbits broad on face, and sides of clypeus, white; autennse black above with a narrow indistinct pale annulus, beneath fulvous black at extreme base and apex; thorax immaculate, shining; most of tegulte, dot in front and short line beneath whitish; wings hyaline, iridescent; spot on four anterior coxae beneath and their knees, tibiae and tarsi more or less yellow, base of posterior tibiae and of their tarsal joints dull ferruginous; ab- domen ferruginous, finely punctured, first segment except postpetiole black, the latter punctured; gastrocoeli moderately large and deep. Length .35 inch. Hah. — Canada. (Mr. William Saunders). 151*. canadensis, Cress. Trans. Am. Ent. Soc. i, p. 308, 9 . JIah. — Canada. A robust black species, with ferruginous abdomen, the third and fourth segments of which are black at base ; the tibije are yellowish-white, black at tips, also scutellum and annulus on an- tennas; wings subhyaline; antennae with short stout joints. Length 9 .43 inch. 160. instabilis, Cress. Trans. Am. Ent. Soc. i, p. .303, ^9. IJah.—Can., iMe., Mass., Ct., N. Y., N. J., Va., Ga., Col. A very variable species with the thorax, except scutellum, sometimes entirely black, sometimes with the mesothorax, and metathorax more or less ferruginous; the abdomen is often entirely ferruginous, sometimes more or less black at tip; the antennae are slender, that of 9 with a broad pale annulus. Length % 9 .50 inch. For notes on variation, see original description. 161. fuscifrons, Cress, Proc. Ent. Soc. Phil, iii, p. 1(56, 9; Trans. Am. Ent. Soc. i, p. 307. IJab. — N. Y., 111. Form slender, ferruginous, head and thorax more or less black or fuscous; scutellum pale yellowish; antennie slender, with pale annulus; wings clear; a spot at tip of abdomen, TUANS. AMKK. E.NT. SOC. VI. (24) JULY, 1677. 178 E. T. CRESSON. sometimes a dot on each side of postpetiole and occasionally a spot on each side of third segment yellow ; legs ferruginous. Length $ .50 inch. 162. confirmatus, n. sp. 9. — Slender, fulvo-ferruginous; head, antennse, pro- and mesothorax and lateral regions of scutelluin, black; face, orbits, margins of prothorax, and scutellum, whitish ; wings hyaline; antennae slender, basal joints of flagellum elongate; legs slender; abdomen narrowly fusiform, gastrocoeli large, oblique. Length .37 — .45 inch. Eab.—Cau., Mass., N. Y. 163. velox, Cress. Proc. Ent. Soc. Phil, iii, p. 185, $ . Phi/gadeuon apicafus, Prov. Nat. Can. vii, p. 180, $ . P1ii/(jadeuon Cressoni, Prov. Nat. Can. viii, p. 318, 9 • ffah. — Can., Pa., N. J., 111. A ferruginous species, with pleura and metathorax black; wings clear; apex of abdomen with yellowish spot, gastrocoeli very transverse, nearly meetiug on the disc ; antennae black, with broad pale annulus; posterior femora more or less black. Length 9 .30 — .40 inch. 164. ultimus, n. sp. 9 . — Small, black, shining; face short; anterior orbits, spot on middle of face, clypeus and scape beneath dull ferruginous; antennee with moderately short basal joints, a broad yellowish annulus on flagellum ; mesothorax sparsely punc- tured ; scutellum flat, yellow; wings subhyaline; legs robust, especially the femora, black, basal half of tibife yellow, tarsi ferruginous; abdomen except base of first segment ferruginous, a yellow spot on apical segment, postpetiole broad, smooth. Length .35 — .40 inch. iTai.— White Mts., N. H. (Morrison). 165. vivax, n. sp. 9- — Small, rather robust, head and thorax, except scutellum, black immacu- late; antennre slender, black, with a broad yellowish annulus; scutellum pale yellow; wings subhyaline; legs subrobust, black, four anterior knees, tibise, posterior tibifB excejjt tips, and all the tarsi ferruginous; abdomen robust, fer- ruginous, first segment black, a whitish spot on two apical segments. Length .30 inch. Hub.— ^Yh\te Mts., N. H. (Morrison). 166. vafer, n. sp. %. — Small, black; anterior orbits broader on face, spot on each side of clypeus, mandibles, narrow annulus on antennae, spot on tegulsa, line before, short one beneath, scutellum and sj)ot on anterior coxse beneath, white ; femora and abdomen except base of first segment, ferruginous; wings hyaline; an- tennae about as long as the body, slender; base of first abdominal segment rugose, gastrocoeli large, deep. Length .30 inch. IIab.--\\\nlG xAlts., N. H. (Morrison). AMERICAN HYMENOPTERA. 179 167. lascivus, Cress. Trans. Am. Ent. Soc. i, p. 309, S . Ilah. — Illinois. A very distinct and prettily marked species; black with head and thorax elaborately ornamented with white; legs and abdomen ferruginous, the latter with first and second segments black and a white spot on each apical corner of four basal segments; coxae mostly white; antennae long and slender with white annulus; mesothorax with two white stripes; wings clear, etc. Length S ,38 inch. 1G8. funestus, Cress. Proc. Ent. Soc. Phil, iii, p. IGG, 9 . hoesitans, Prov. Nat. Can. vii, p. 80, 9 • Hah. — Can., N. H., IMass., Pa., Va., 111. A robust, medium sized species, with head and thorax more or less black, abdomen ferruginous, scutellum yellowish, whitish annulus on antennae, clear or subhyaline wings, black legs with tibiae except tips and tarsi ferruginous; an- tennEe stout, with thick-set joints. One specimen from 111. has a small yellow spot on each side of second abdominal segment. The head is sometimes entirely ferruginous, but generally, the occiput is black ; the mesothorax is often varied with ferruginous. Length 9 .37 — .47 inch. 1G9. maius, Cress. Trans. Am. Eut. Soc. i, p. 307, 9 . Hah. — Mass., N. C. Very near yimes/i;ikota Territory. Black, immaculate; wings yellow, with apex broadly pale fuliginous; first abdominal segment not elevated before apex. Length S .72 inch. AMERICAN IIYMENOPTERA. 197 10. atrox, Cress. Trans. Am. Ent. Soc. ii, p. 9.3, 9 . Ilah. — Dakota Territory. Black, second abdominal segment with a broad transverse ferruginous spot; wings fuscous, stigma fulvous; first abdominal segment not elevated before apes. Length $ .02 inch. 11. apicalis, n. sp. 9. — Deep black; a yellow spot on each side of face; third and following segments of abdomen fulvo-ferruginous; wings violaceous-black; four anterior tibiae and tarsi obscure fulvous; anterior margin of clypeus straight; scutellum obtusely elevated; abdomen subconvex, postpetiole coarsely punctured, disc not elevated. Length .75 inch. Hah. — Georgia. (Morrison). 12. austrinus, Cress. Trans. Am. Ent. Soc. ii, p. 92, % 9 . Hah. — Ga , Fla. Black; head, pro- and mesothorax, occasionally the scutellum and disc of metathorax, anterior legs and intermediate tibiae and tarsi, fulvous; antennte orange-yellow, sometimes dusky at tips; wings blackish-fuliginous, with a strong aeneous reflection; first abdominal segment not elevated before apex. Length % 9 .85 inch. 13. nubilipennis, Hald. Proc. Acad. Nat. Sci. Phil, iii, p. 127. Hah. — Can., Pa., Va., Ga. Fulvo-ferruginous, third and following abdominal segments black; 9 antennae black with broad yellowish annulus ; % antennae black, slightly tinged with yellowish beneath toward tips ; face and scape beneath of % , and the tibiae except tips, and tarsi yellow; wings dark fuscous, with a strong aeneous reflection, stigma fulvous; first abdominal segment elevated and subpyramidal before apex. Length % 9 .85 inch. 14. occidentalis, Cress. Trans. Am. Ent. Soc. ii, p. 93, S . Ilab. — Dakota Territory. Fulvous; stripe on each side of pro- thorax, stripe on anterior middle of mesothorax, most of pleura, base and flanks of metathorax, coxae, base of third abdominal segment and the following segments except sides of fourth and narrow apical margin of fourth and fifth, all black ; wings fuscous, the base irregu- larly and streak in marginal cell yellow, stigma and costal vein ful- vous; first abdominal segment strongly elevated and subpyramidal before apex. Length % .85 inch. 15. quebecensis, Prov. Nat. Can. vi, p. 335, 9 . Hub. — Cauiida, (coll. Provancher). Large, pale fulvous; tips of antennae, three broad stripes on mesothorax, sides of thorax and beneath, metathorax and fuurth and following abdominal segments 198 E. T. CRESSON. except lateral margin of fourth, black ; wings yellow, apical margins fuliginous ; scutellum gibbous, convex ; prominent disc of metathorax polished and fulvous ; apex of posterior femora within blackish ; first abdominal segment strongly elevated and subpyramidal before apex. Length 1 inch. 16. Bolteri, Cress. Trans. Am. Ent. ii, p. 94, % . Hub. — Lake Superior, (coll. Bolter). Black ; face, orbits, clypeus, mandibles and palpi lemon-yellow ; tegulse, spot before, and scutellum, fulvous; wings yellow, slightly dusky at tips; legs yellow, varied with fulvous, posterior coxae at base and their femora behind black, extreme tips of their tibias within and basal joint of their tarsi dusky; first segment of abdomen except base, second entirely, third except base and ventral segments two to five, yellowish-fulvous; basal segment gibbous before apex. Length S .85 inch. 17. Copei, Cress. Trans. Am. Ent. Soc. ii, p. 94, % . Hah. — West Virginia. Black; white spot on each side of face; abdomen, except petiole, entirely fulvo-ferruginous ; wings blackish- violaceous. Length S .82 inch. 18. canadensis, Prov. Nat. Can. ix, p. 2. Copei, Prov. {not Cress.), Nat. Can. vi, p. 335, S 9 . Hah. — Canada. Black ; tibiae, tarsi and abdomen except petiole, fulvous ; wings uniformly dark fuliginous, with a strong aeneous reflection; antennae sometimes varied with fulvous; first abdominal segment elevated and subpyramidal before apex. Length % 9 -90 — .95 inch. Quite distinct from Copei. 19. Rileyi, Cress. Trans. Am. Ent. Soc. ii, p. 95, 9 . Ilah. — Illinois, (coll. Riley). Large, ferruginous; tips of mandi- bles and of antennae, black; wings fuscous, with a golden gloss, stigma fulvous, nervures black ; basal third of marginal cell, base of both wings and a costal streak on posterior pair yellow ; legs and thorax beneath golden-sericeous; first segment of abdomen elevated and sub- pyramidal before apex. Length 9 1.08 inch. 20. mellosus, Cress. Rep. Wheeler Exp. p. 708, 9 . llah. — New Mexico. Large, fulvous; head, antennae except tips, and tibiae and tarsi yellow; tips of antennae and narrow basal margin of third abdominal segment black ; a fuscous stripe over tegulae ; wings yellow, apical margins fuliginous; scutellum elevated, convex; first abdominal segment elevated and subpyramidal before apex. Length 9 1 inch. AMERICAN HYMENOPTERA. 199 21. buccatus, Cress. Proc. Cal. Acad. Nat. Sci. 1877. Ilab. — Vaucouver's Lsland. Rather small, robust, uniformly fulvo- ferrug;inous ; antennae black, fulvous at base; wings blackish-violace- ous ; head quadrate, cheeks swollen ; postpetiole not elevated. Length 9 .()(> inch. 22. elegans, Cress. Trans. Am. Ent. Soc. ii, p. 94, 9 . Hub. — Maine. Honey-yellow, with a fine golden sericeous pile especially on legs and abdomen ; the face, tarsi and tip of abdomen paler; base and tips of antenna tinged with fuscous; wings yel- lowish, with a brilliant golden gloss, a triangular mark at tip of externo-medial cell and a large irregular cloud at tip of anterior wing, black ; stigma yellow ; abdomen darker colored at base. Length 9 .75 inch. Ichneumonides platyuri. Scutellura carinate laterally PLATYLABU8. Scutellum not cariuate laterally EURYLABUS. PI.ATYIiABUS, Wesm. Body steel-blue 1. clarus. Body black and ferruginous. Abdomen black, second segment only ferruginous 2. SCiitellatus. Abdomen entirely ferruginous or black at extreme base and apex. Antennae without pale annulus; head and thorax black 3. COllSOrs. Antennfe with pale annulus. Metathorax black. Basal joints of fiagellum ferruginous; soutcllum with white spot at tip 4. canadensis. Basal joints of flagellura black; scutellura white 5. uioutauus. Metathorax ferruginous. Scutellum white. Abdomen ferruginous, black at tip 6. signatus. Abdomen entirely ferruginous 7. ornatns. Scutellum ferruginous or black. Abdomen ferruginous, black at tip , 8. thoracicns. Abdomen entirely ferruginous 9. 4-cariuatus. Body entirely ferruginous. Antennae witiiout pale annulus 10. calirornicus. Antennae with pale annulus 11. liueolatus. 1. clarus. Ichneumon clarus, Cress. Trans. Am. Ent. Soc. i, p. 297, 9 . Ilab. — N. H., Mass. A beautiful steel-blue species, with clear wings, white annulus on antennae, and generally a white spot on scu- tellum ; sometimes the thorax is tinged with green. The % is less shining, narrower, with face, clypeus and four anterior coxae beneath white; flagellum entirely black. Length % 9 .40 — .55 inch. 200 E. T. CRESSON. 2. scutellatus. Ischnus scufeUatus, Prov. Nat. Can. vii, p. Ill, S . Ilab. — Canada, (coll. Provancher). This is black, with narrow line on sides of face, scutellum and spots on tip of abdomen, white ; four anterior legs and base of femora varied with ferruginous; second abdominal segment dull ferruginous. Length % .28 inch. 3. consors, Cress. Proc. Cal. Acad. Nat. Sci. 1877. Hah. — California. Black, with sides of face white ; femora and ab- domen ferruginous; wings hyaline; flagellum entirely black. Length % .33 inch. 4. canadensis, n. sp. 9- — Black; most of legs and abdomen, except base and apex ferruginous; autennse longer than body, very slender, four basal joints of flagellum fer- ruginous, joints nine to thirteen white; transverse spot above base of mandi- bles and one at tip of scutellum white; wings hyaline; coxse, trochanters, tips of posterior femora and of their tibise, first segment of abdomen except tip, and the two or three apical segments, black. Length .35 inch, Hab. — Canada. 5. montanus, n. sp. 9- — Black; short line on anterior orbits, narrow annulus on antennae, dot or line before tegulae, one beneath, and large spot on scutellum, white; wings hyaline; femora and abdomen ferruginous, base of first segment and some- times two apical segments black. Length .30 — .32 inch. Bab.— White Mts., N. H. (Morrison). 6. signatus. Phijgadeuon signatus, Prov. Nat. Can. vi, p. 282, 9 . Hab. — Canada. Black ; anterior orbits, interrupted on each side of antennae, spot on each side of clypeus, annulus on antennae, line before tegulae, short one beneath, and scutellum, white; spot on sides of pleura, metathorax, legs and abdomen ferruginous; tips of pos- terior femora and of their tibiae, and apex of abdomen black, apical margin of last two segments white ; wings clear j antennae much shorter than usual. Length 9 -32 inch, 7. ornatus. Phi/gadeiinn ornatus, Prov. Nat. Can. vii, p. 181, 9. Hah. — Canada. Ferruginous; head, antennae, prothorax and stains on mesothorax, black; antennae long; orbits, broadest on face, spot on mandibles, narrow annulus beyond middle of flagellum, anterior margin of prothorax, spot on tegulae, line before, short one beneath, scutellum and spot on anterior coxae, white; wings clear. Length 9 .32 inch. AMERICAN HYMENOPTERA. 201 8. thoracicus. Iloplisinenus thoracicus^ Cress. Proc. Ent. Soc. Phil, iii, p. 288, % . Phi/ga(fcaon impressus, Prov. Nat. Can. vi, p. 281, 9. var. Ichneumon eryfhopijgus, Prov. Nat. Can. vii, p. 79, S . Hah. — Can., N. H., N. Y., Pa. Ferruj^inous ; head, antennae, pro- and mesothorax, sometimes the scutcllum and pleura, tips of posterior femora and of their tibiae, and apex of abdomen, black; annulus on antennae, sometimes line on each side of face S , and spots or lines on apex of abdomen, white; wings slightly dusky; the mesothorax ia varied with ferruginous and the basal segment is broader and more rugose in erijthopt/gus ; the sculpturing of the basal segment of ab- domen in a good series of specimens, however, varies consideratly, as does also the coloration of the thorax. Length % 9 .30 — .35 inch. 9. 4-carinatus. Phij(/(t(h.unn 4-carinatm, Prov. Nat. Can. vii, p. 180, % . Hah. — Canada. A small ferruginous species, with head, antennae, prothorax, three marks on mesothorax, sutures of thorax and beneath, and trochanters, black; sides of face, two spots on clypeus and annu- lus on antennae white; wings strongly iridescent; base of abdomen coarsely rugose, the postpetiole having four strongly elevated carinae. Length S .25 inch. 10. californicus, Cress. Proc. Cal. Acad. Nat. Sci. 1877. Hah. — California. Ferruginous, shining, especially the abdomen ; mesothorax sometimes stained with blackish; antennae very slender, apical half black, wings hyaline. Length $ .35 inch. 11. lineolatus. Jchiuumon lineohitus, Prov. Nat. Can. vii, p. 82, 9 . Phygadeuon rujipes, Prov. Nat. Can. vii, p. 181, 9 • Ilah. — Canada. Very much like the preceding, but distinguished at once by the white annulus beyond middle of flagellum. Length 9 .35 inch. EURYI.ABUS, Wesm. agilis, n. sp. 9- — Black; dot on each side of vertex, annulus on flagellum, dot beneath tegul£e,scutelluin and postscutelluni, white; wings hyaline; four anterior tibice and tarsi more or less pale. Length ..32 inch. %. — More slender; sides of face, two spots on clypeus, labrum, palpi, spot on scape beneath, spot on tegulse and lino before, white; extreme base of femora reddish; otherwise as in 9- Length .33 inch. JIab. — Can., Mass., N. Y. TEANS. AMEU. ENT. SOC. VI. (27) JULY, 1877. 202 E. T. CRESSON. Ichneumones pneustici. With the very limited amount of material before me belonging to this division, I have thought it best for the present to refer the species so far known to me to PII.COGENES, Wesm.' Black species 1. Black and ferruginous species, (the head and thorax being black). Abdomen black at apex. Antennae with pale annulus 2 — 5. Antennae without pale annulus 6. Abdomen ferruginous, first segment only black 7. Abdomen entirely ferruginous 8. Ferruginous species. Head and apex of abdomen black 9. Head ferruginous. Abdomen black at apex 10 — 12. Abdomen entirely ferruginous. Antennae with pale annulus 13 — 14. Antennae without pale annulus 15 — 16. 1. ater, n. sp. 9. — Deep black, shining; head large, transversely subquadrate, cheeks swollen, punctured; face short, transversely sculptured; clypeus sliort, broad, anterior margin broadly rounded; mandibles narrowed to tip whicli has two subequal teeth; antennae short, with whitish annulus on flagellum; thorax finely, not closely punctured; scutellum large, flattened, broadly rounded behind; metathorax coarsely and confluently punctured, with well-defined elevated lines, posterior face oblique, longitudinally sulcate, transversely sculptured; wings narrow, hyaline, areolet five-angular; legs slender, four anterior knees, tibiae and tarsi dull testaceous, coxae simple; abdomen long, narrow, subfusiform, sparsely punctured, polished ; postpetiole smooth, nar- row; base of second segment longitudinally aciculated and with a broad rather shallow depression, deeper at sides. Length .10 inch. ZTai.— Missouri. (C. V. Riley). 2. hariolus. Ichneumon Jmriolus, Cress. Trans. Am. Ent. Soc. i, p. 305, 9 • Hah. — N. H., Mass. Black, shining; head not unusually large, cheeks swollen; broad anterior orbits, mandibles and sometimes the cheeks yellowish-ferruginous; clypeus transversely depressed before anterior margin which is bi'oadly rounded; antennae rather long and slender, brown at base, black at tips, a whitish annulus on flagellum ; thorax finely and closely punctured ; scutellum flattened, sparsely punc- tured ; metathorax coarsely sculptured, with well-defined elevated lines, posterior lace b.oadly excavated and transversely wrinkled; tegulse whitish; wings subhyaline; legs ferruginous, subrobust, posterior AMERICAN HYMENOPTERA. 203 femora swollen, brownish, their coxae beneath with a large sub- obtuse tooth at tip ; abdomen subdepressed, fusiform, indistinctly punctured ; second, third and fourth segments ferruginous, some- times also apex of postpctiole; gastrocoeli very transverse, deep. Length 9 .35 inch. 3. hebrus. Ichneumon hebrus, Cress. Trans. Am. Ent. Soc. i, p. 305, % 9 . Phi/gnJmon insignis, Prov. Nat. Can. vii, p. 179. Hab. — Can., N. Y., 111. Same form as the preceding, but with larger head ; black, with legs except tips of posterior femora and of their tibiae, and the abdomen except three apical segments, ferrugin- ous: flagellum with a broad whitish annulus, and three basal joints reddish ; head and thorax closely and strongly punctured ; wings faintly dusky ; posterior coxae; with a short obtuse tooth beneath near tip ; abdomen strongly punctured on second and third segments, postpetiole and apical segments smooth ; gastrocoeli very transverse nearly meet- ing on disc; the % is more slender, with longer antennse, which are entirely black except white annulus on flagellum ; the femora and posterior tibiie are black. Length % 9 .36 — .40 inch. 4. Hebe. Ji hneujuoH Ilebe, Cress. Trans. Am. Ent. Soc. i, p. 30G, 9 . JIdb. — Ct., N. Y., 111. Much smaller than hebrus and more slender in form ; black, shining; mandibles except tips, and base of flagellum yellowish; flagellum with a narrow whitish annulus; tegula; whitish; legs except posterior knees and tips of their tarsi, and segments two to four of abdomen, yellowish-ferruginous ; wings hyaline; legs sub- robust, posterior coxae beneath with a large acute tooth at tip ; gastro- coeli very transverse. Length 9 -23 — .25 inch. 5. decoloratus, n. sp. 9. — Hlaek; face, clypeus, posterior orbits, antennte at base and beneatli, disc of mesothorax, spot on scutellum, sides of thorax, legs, and segments one to four of abdomen, ferruginous; a white annulus on flagellum ; antennae long and slender; head broad, cheeks swollen: metathorax obliquely truncate be- hind; wings subhyaline; legs slender, simple, posterior femora and tips of their tibiae blackish; abdomen narrow, subfusiforin, shining, impunctured, base of second segment broadly transversely depressed. Length ,30 inch. //a/..— White Mts., N. H. (Morrison). 6. discus, n. sp. %. — Slender, shining, black; fane, clypeus, mandibles, scape beneath, some- times a spot beneath eyes, and on tip of scutellum, tegulse, four anterior coxse, and trochanters, yellow; flagellum beneath pale testaceous; legs and abdomi- 204 E. T. CRESSON, nal segments two to four, ferruginous; base of posterior coxse and spot on disc of abdominal segments two to four above, blackish; wings subhyaline; legs Blender, simple ; abdomen narrow, second segment transversely depressed at base. Length .30 inch. Hah.— White Mts., N. H. (Morrison). Y. exiguus. Ichneumon exiguus, Cress. Proc. Ent. Soc. Phil, iii, p. 182, 9 • Hah. — Colorado. Very robust, black, shining; scape, mandibles, legs and abdomen except first segment, ferruginous; head subrotund, face short, subprotuberant ; antennae short, robust, with submoniliform joints, scape large, swollen ; thorax polished, impunctured; metathorax deeply excavated behind, with well-defined elevated lines; wings hya- line ; legs short and robust, coxae simple, femora swollen ; abdomen broadly fusiform, polished, impunctured, postpetiole broad, petiole un- usually robust, gastrocoeli obsolete. Length $ .23 inch. 8. fungor. Ichneumon fun gov, Norton, Trans. Am. Ent. Soc. i, p. 306, % . Hah. — Ct., N. Y., Pa., Del., 111. Long, slender, black; clypeus, antennae, legs and abdomen, pale ferruginous; mandibles and tegulae yellow; head large, transversely subquadrate, strongly punctured, ch'peus nearly as long as broad ; thorax strongly punctured ; wings subhyaline; legs slender, simple, posterior tibiae and tarsi dusky; abdomen long, slender, subcylindrical, shining, postpetiole narrow, gastrocoeli obsolete. Length % .35 — .40 inch. 9. quadriceps. Ichneumon quadriceps., Cress. Trans. Am. Ent. Soc. i, p. 312, % 9 . Hah. — Can., Ct. This is a very long narrow species with quadrate head, and short, robust legs; ferruginous, with head, posterior femora and tibiae and two terminal segments of abdomen, black; antennae short; wings narrow, subhyaline; abdomen much longer than head and thorax, narrow and cylindrical, gastrocoeli obsolete. Length .40 inch. 10. vincibilis. Ichneumon vincihilis, Cress. Trans. Am. Ent. Soc. i, p. 312, 9 • Hah — Illinois. Form of i/efte ; entirely ferruginous except three apical segments of abdomen which are black, the antennae are some- times more or less black above and at tips with a whitish annulus on flagellum ; head large and broad; wings hyaline; legs slender and simple ; gastrocoeli very transverse. Length 9 .27 inch. AMERICAN HYMENOPTERA. 205 11. tuberculifrons. rhi/, n. sp. Excavation small, shallow 7. jacobinus, n. sp. 1. B. gnlaris.— Yellow-brown, not shining; head, mandibles, suture, diago- nal tip of elytra, and last two abdominal segments blackish; .apical part of mandibles slender, tooth very long; epistoma with a prominent subapical tubercle, or short horn, which is emargiuate at tip; occiput with a deep trans- verse short impression, which is met by the short deep impressed line of the vertex; supra-antennal ridges prominent; submental suture angulated; sub- mentum flat, strongly declivous; gula with a very deep triangular excavation. Length 7.5 mm; .30 inch. %. — Seventh ventral segment slightly sinuous at tip, eighth with two im- pressed lines converging in front, intermediate space corneous; 9> eighth seg- ment feebly impressed. One S , Middle States; precise locality unknown ; 5, Illinois; Dr. Horn. The sculpture is exactly as in B. maiidibularis, from which it differs only by the punctures of the prothorax and back part of the head being stronger, and by the characters above mentioned. 2. B. pallipennis, Er. Staph., 779 ; Oxytelus pall.. Say, Journ. Ac, Nat. Sc. iii, 155; ed. Lee. ii, 100. — Yellow-brown, not. shining; head and mandibles blackish, suture and tip of elytra fuscous; apical part of mandibles slender. AMERICAN COLEOPTERA. 219 tooth very long; epistoma slightly elevated near the tip, with two small distant cusps, supra-antennal ridges prominent ; vertex convex at the' middle, with a short deep impressed line, transverse impression of the occiput obsolete; sub- mental suture angulated; submentum slightly declivous, with a granulated space at the middle; gula with a shallow but sharply defined triangular im- pression. Length 9 mm ; .35 inch. %. — Seventh ventral' segment slightly sinuous at tip; eighth with two con- verging lines, which soon become parallel; intermediate space corneous; 9> eighth ventral very feebly impressed. Oue ^ , Nebraska; collected by Dr. F. V. Hayden ; 9, Illinois; Dr. Horn. The head and prothorax are punctured as in B, gularis^ that is, more strongly than in B. mandibularis. 3. B, Tortii^, n. sp. — Blackish-brown, not shining, elytra reddish-brown; mandibles long and stout, apical portion broad, compressed, obliquely and strongly narrowed towards the tip; tooth broad and strong; epistoma truncate slightly convex, with a few small punctures each side ; supra-antennal ridges strongly elevated; vertex feebly transversely concave, impressed line longer than in the other species, punctures very sparse and small. Prothorax sparsely finely punctured, dorsal line deep. Submental suture straight; submentum with a very deep excavation, which is almost divided by a narrow elevated ridge. Length 10 mm; .40 inch. 'J,. — Seventh ventral segment slightly sinuous at tip; eighth with a deep triangular incision, not closed by membrane. 9- — Submentum less deeply impressed; eighth ventral not incised. One S , Galveston, Texas ; 9 , Dr. Horn. The tooth of the mandi- bles of the 9 is shorter and less prominent, and the body less robust ; the elevation in the cavity of tne submentum is broader, almost as in B. Tnandibularis S . 4. B. mandibularis. Er. Staph. 765. — Yellow-brown, not shining; head and mandibles blackish; apical part of mandibles compressed, suddenly nar- rowed near the tip, tooth very long ; epistoma flat, supra-antennal ridges moder- ate; vertex broadly concave, with a short longitudinal impressed line, sparsely obsoletely punctured behind ; prothorax broader than long, sparsely irregularly and feebly punctured, dorsal line deep, entire; elytra finely not deeply punctu- late, dusky along the suture; dorsal segments smooth, shining, tip sometimes darker; ventral segments sparsely punctulate; submental suture straight; sub- mentum with a deep and broad excavation, the middle part of which is filled by a broad flat elevation. Length 7.5 — 10 mm; .30 — .40 inch. 'J,. — Seventh ventral segment slightly sinuate at tip; eighth with a deep acute triangular incision, the bottom of which is closed by membrane. Abundant at New York, and other points on the Atlantic coast of the Middle States. 5. B. brevidens, n. sp, — This species is precisely similar in color and sculpture to B. mandibularis, but is less robust in form, and the tooth of the mandibles is short and oblique in both sexes. The cavity of th5 submentum is broad and flat, without any central elevation. Length 10 mm ; .40 inch. %. — Eighth ventral segment with two distant slightly converging impressed Jines ; tip slightly emarginate, or rather, triangularly impressed. 220 J. L. LECONTE, M. D. Now York, collections of Dr. Horn and myself. The differences are so obvious and the other characters so similar that a longer de- scription is not needed. The tip of the abdomen is not darker in any of the specimens I have seen, nor is the suture dusky. 6. B. flBrrattiS, n. sp. — Brown, not shining, antennte, legs and elytra paler: mandibles with the apical j>art compressed, gradually narrowed from the tooth to the tip; tooth compressed, short, acute; epistoma slightly convex; frontal suture feebly angulated, %vith an obsolete cusp at the middle; supra-antennal ridges short, broad ; back part of head rather strongly but sparsely punctured, line of vertex short. Prothorax rather strongly punctured, dorsal line deep. Elytra finely but more distinctly punctured than in the preceding four species, ventral segments more densely punctulate than in them; dorsal segments sparsely punctulate. Submentura excavated, with a small median elevation; submental suture straight, gula very deeply longitudinally impressed. Length 7.5 mm ; .30 inch. %. — Eighth ventral segment with a deep narrow incision, closed by mem- brane. 9. — Eighth segment rounded at tip. San Diego, Gala, ; three specimens, collected by Mr. G. R. Crotch ; varies uniform yellowish-brown. 7. B. jacobinilS, n. sp. — Brown, not shining, antennte, legs and elytra paler; mandibles with the apical part compressed, gradually narrowed from the tooth to the tip; tooth not large, acute; head as in the preceding, except that the frontal suture is straight; prothorax strongly punctured, dorsal line entire. Elytra finely but more strongly punctured than in B. ferratus ; dorsal and ventral segments as in that species; submentum with a small circular impression; submental suture straight, gula deeply impressed longitudinally. Length 4,8—7 mm ; .19— .27 inch. -^ . — Seventh ventral segment broadly emarginate. 9- — Seventh ventral truncate; eighth segment rounded in both sexes. San Diego, Gala. ; five specimens, Messrs. Grotch and Hardy. Group 2. — nrmatus. In this group the side margin of the prothorax is distinct, and the prosternal sutures are obliterated; the fissure of the anterior coxal cavities is always closed. The submentum is flat, never excavated, and the longitudinal gular line is well-impressed. The mandibles are stout, not very long, with one or two broad teeth on the inner side; the apical part is rather short and not slender. The front and middle tibiae are compressed, fringed with long spines arranged in widely separated rows. The sides of the prothorax are nearly parallel for three-fourths the length, then strongly rounded to the base, without any hind angles. The sculpture of the prothorax is coarse, and the elytra are usually strongly punctured. The dorsal surfiice of the abdomen is nearly smooth, the ventral is densely but finely punc- tured. AMERICAN COLEOPTERA. 221 So far as T know, these species are not found in salt marslies, but frequent the borders of streams and ponds. Flanks of protliorax concave along the side margin 2. Flanks of protliorax convex ....8. arinatiis. 2. — Under surface of protliorax with an impressed lino parallel with the margin 3. Under surface of prothorax without impressed line 9. cribi'i(*ollis. 3.— Elj'tra densely punctured 10. ciispiditf iiM. Eh'tra sparsely punctured 11. poIitiiN. Elytra finely punctured; punctures and dorsal line of prothorax indis- tinct.. 12. flavipeiiuis. 8. B. ariiiatus, Er. Staph. 779; Oxyfelus arm., Say, Journ. Ac. Xat. So. Phila. iii, 155; ed. Lee. ii, 100. — Dark chestnut-brown, sometimes blackish- brown, somewhat shining. Head finely granulate, with an impressed line from the frontal suture to the vertex. Antennae with the sixth and seventh joints gradually larger. Mandibles with a strong tooth near the tip. Prothorax not wider than long, front angles rounded, sides parallel, then rounded into the base, without angles; disc coarsely and sparsely punctured, very finely granu- late, dorsal line deep. Elj'tra convex, usually less dark, rather shining, deeply rather densely punctured, sutural angle rounded. Dorsal segments feebly and sparsely punctulate; ventral segments finely rather densely punctured. Side margin of prothorax fine, but distinct, flanks not concave. Length 5 — 7.5 mm ; .20— .25 inch. %. — Supra-antennal ridges strong and acute; anterior angles of epistoma elevated into acute cusps; vertex with a tubercle which is divided by the longitudinal line. 9. — Supra-antennal ridges broader and smaller; epistomal cusps obsolete; vertical tubercle very feeble. There are no differences in the last ventral segments. Kansas, Arizona, Nevada, California. The specimens collected by Say were evidently immature, since he describes the species as pale reddish-brown with black head. 9. B. cribricoIliM, n. sp. — Brown or blackish-brown, rather shining, au- tennse ferruginous. Head scarcely perceptibly granulate, impressed line ex- tending from the frontal suture to the vertex. Prothorax a little longer than wide, front angles rounded, sides parallel, then rounded into the base, with- out hind angles; surface nearly smooth, with deep coarse scattered punctures, dorsal line deep. Elytra densely and finely punctured. Dorsal segments nearly smooth, ventral finely and sjjarsely punctured. Margin of prothorax acute, flanks deeply concave beneath, without line parallel to the margin. Mandibles with a large tooth near the tip. Length. 4 mm; .15 inch. %. — Epistoma with the anterior angles elevated into obtuse cusps; supra- antennal ridges acutely elevated ; front convexly elevated near the epistoma, convexity divided by the longitudinal line. 9- — Epistoma not cuspidate; supra-antennal ridges less elevated, frontal convexity not apjiarcnt, ventral segments alike in both sexes. Sau Diejz;o, California; three specimens collected by 3Ir. G. R. Crotch. thans. amek. ent. soc. vi. (30) October 1877. 222 J. L. LECONTE, M. D. 10. B. cnspldatlis, n. sp. — Blackish-brown, prothorax red-brown, elytra, antennae, palpi and legs yellow-brown. Head finely granulated, with a large puncture on the vertex. Prothorax more finely granulated, somewhat shining, convex, punctures rather large, scattered, dorsal line fine; scarcely as long as wide, front angles rounded, sides parallel, then rounded into the base, with- out hind angles. Elytra brownish-yellow, suture dusky, finely rather densely punctured, shining. Dorsal segments smooth, shining; ventral densely finely punctured. Margin of prothorax acute, flanks narrowly but deeply concave, with a very faint impressed line parallel with the margin. Mandibles bisinu- ate on the inner edge, indicating two broad, but feeble teeth. Length 5.6 mm ; 2.2 inch. %. — Epistoma with the anterior angles elevated into acute cusps; supra- antennal ridges acutely elevated; a very small tubercle at the middle of the vertex; eighth ventral segment acutely triangularly incised, and with a fine impressed line. 9. — Cusps of epistoma and supra-antennal ridges less developed; eighth ventral segment rounded at tip. Dacota; one pair kindly given me by Mr. Ulke. 11. B. ]>olitll$$, Er. Staph. 766. — Shining, piceous, prothorax ferruginous, elytra, antennae, palpi and legs brownish-yellow. Head finely granulate, opake, without any impression on the vertex. Prothorax not longer than wide, convex, polished, sparsely and coarsely punctured, dorsal line deep; sides parallel, rounded into the base, without hind angles. Elytra shining, coarsely and sparsely punctured. Dorsal segments smooth, ventral sparsely finely punctu- late. Margin of prothorax acute, flanks narrowly but deeply concave, and with a distinct impressed line parallel to the margin; an impression also ex- tends transversely from the fissure of the front coxal cavities to this line, but the fissure is not open, and the prosternal suture is not visible. Length 3.7 mm : .15 inch. One female, Coney Island, near New York, July. Erichson's de- scription agrees with this specimen except that the characters of the head indicate a male, with the epistomal cusps, elevated supra-antennal ridges, and small vertical tubercles. 12. B. flavipcnnis, Lee, New Spec. Col. (Smithsonian 8vo), 52. — Dark- brown, base of antennfc, elytra and legs yellow-brown; prothorax reddish- brown. Mandibles with two obtuse teeth on the inner edge. Head opake, fineh' granulate, with a short impression on the vertex. Prothorax not shining, not longer than wide, sides parallel, rounded behind into the base, as in the other members of this group, feebly and sparsely punctured, dorsal line ipdis- tinet. Elytra shining, finely but strongly punctured, suture dusky. Abdomen with the tip paler, dorsal segments nearly smooth, ventral punctured. Side margin of prothorax acute, flanks narrowly concave, with an indistinct line parallel to the margin. Length 4.2 — 5.3 mm; .17 — .21 inch. % . — Front angles of the epistoma produced into slender erect horns, recurved at tip; supra-antennal ridges acutely and strongly elevated; vertex with a tubercle which is divided by the short impressed line. 9 • — Front angles of epistoma acute but not elevated ; supra-antennal ridges and vertical tubercle less developed. The last ventral segments are alike in both sexes. San Diego, California; twelve specimens. AMERICAN COLEOPTERA. 223 Group 3. — semlferrug ineus. In the species of this group, which is the best represented in our fauna, the side margin of the prothorax is acute and the flanks con- cave ; the fissure of the front coxal cavities is short and closed ; the prosteriKil sutures run from the outer end of the fissure towards the anterior angles of the pronotuni, so that the side pieces (episterna) are distinctly triangular. The mandibles are stout, strongly toothed near the tip, which is compressed and gradually narrowed. The rows of spines on the front tibise are widely separated ; the hind tibiae are long and slender, fimbriate with long sparse hairs and a few fine spines. Prothoracic episterna verj' distinctly triangular, sutures directed to the front angles of the pronotuin 2. Prothoracic episterna not triangular, sutures parallel with the side margin of the under surface of the prothorax 6. 2. — Sides of prothorax very much rounded 3. Siij;iiiO!tiiorax wanting 20. iiitidicollis. 13. B. seniil'errugi Ileus, Loc. New Sp. Col. (Smithsonian 8vo), 52. — Chestnut-brown, shining, elytia paler, legs yellow-brown. Head coarsely punc- tured, with a smooth space on the vertex, in the middle of which is a large deep puncture. Prothorax nearly globose, truncate in front, coarsely rather densely punctured, dorsal line deep. Elytra deeply and rather densely, but not coarsely punctured. Dorsal segments sparsely punctulate; ventral also sparsely punctulate. Side margin of prothorax fine but distinct, flanks con- vex, sutures of prosternum reaching the front angles of the pronotum; epis- terna smooth, triangular; prosternum opake, feebly punctured. Mandibles with a large tooth near the tip; apical part rather slender. Length 4.5 mm ; .18 inch. %. — Sixth ventral segment broadly emarginate in an arc of a circle; eighth segment not incised nor impressed. J . — Sixth ventral truncate. Middle States, Michigan. Florida. 14. U. rotiiudicollis, n. sp. — Chestnut-brown, tip of abdomen and legs brownish-yellow. Head opake, finely granulate, not punctured; vertex obso- letely foveate. Prothorax wider than long, rounded, truncate in front, deeply rather densely punctured, dorsal line distinct. Elytra densely and rather finely punctured. Dorsal segments sparsely punctulate; ventral finely rather densely 224 J. L. LECONTE, M. D. punctured. Side margin of prothorax fine, flanks convex, episterna triangular, subopake; prosternuin feebly punctured. Length 7 ram; .27 inch. % . — Sixth ventral segment deeply emarginate in the arc of a circle; eighth acutely incised at tip; incisure closed by membrane. One specimen ; Fort Pierre, Nebraska. 15. B. rumatu!^, Lee. New Sp. Col. (Smithsonian 8vo), 52. — Chestnut- brown, shining, elytra red-brown; legs and usually the tip of the abdomen brownish-ye