TRANSACTIONS ENTOMOLOGICAL SOCIETY. VOL. VI. Y p p 3 o- PIIILADELPHIA. TRINTED BY THE SOCIETY. 1877. LIST OF PAPERS. Page Cresson, E. T. Notes on the species belonging to the subfamily Ichneu- monides found in America North of Mexico. - - 129 Edwards, William IT. Catalogue of the Diurnal Lepidoptera of America North of .Mexico. -------- 1 Horn, George IE, M. D. Synopsis of the genera and species of the Staphylinide tribe Tachyporini of the United States. 81 LeConte, John L. M. D. On certain genera of Staphylinidac Oxytelini, Piestidoe, and Micropeplidse, as represented in the fauna of the United States. ------- 213 McCook, Rev. Henry C. Mound-making Ants of the Alleghenies, their Architec¬ ture and Habits. ------- 253 Scudder, Samuel II. On the Classification of Butterflies, with special reference to the position of the E^uites or Swallow-tails. - 09 Tn^isrs^CTXonsrs OF THE AMERICAN ENTOMOLOGICAL SOCIETY. VOLUME VI. Catalogue of tlie DIURNAL LGPIDOPTERA of America North of Mexico. BY WILLIAM II. EDWARDS. Since the publication of the S3Tnopsis which completed the first volume of the “ Butterflies of North America” in 1872, a large number of new species have been described, belonging to the North American fauna, while the position of many given in the Synopsis has been determined by bringing together the types from several collec¬ tions. Alan}’ 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 iuto one. For these reasons, if no other, a new catalogue cf species of the Diurnals is required. And indeed, fur many and good reasons, new and reformed catalogues of every class of the Lepidoptera of North America are required, and it is intended that this shall be the first of a complete series. In the preparation of the present one I have received large assist¬ ance from Mr. Lintner and Mr. Henry Edwards, and, in general, the plan herein adopted, and the changes from the Synopsis, both as to the genera and species, have met their approval. 1 have also availed myself somewhat of Mr. Scudder’s recent Revisions and Lists, so far as regards the species, though 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 been able to learn, 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 1 first began to collect butter- febri arv, 1877. TRANS. AVER. ENT. SOC. VI. (1) 2 WM. II. EDWARDS. 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, unlabelled, 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 authors 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 and 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 oi the Hesperidae, and through them of the Heterocera, and can confidently assert that, in the preparatory stages, these two families are as unlike as any of the series. And as to the butterflies them¬ selves they stand at the two poles. Even 31 r. lhites says of the Papilionidae, they are “quite unconnected with the Hesperidte, no connecting links between the two families being known.” (Jl. of Entom. 1861. Pec.) In the imago, some Danainse and Heliconinae closel}' resemble species of Papilioninae and of Pierinae, and in any arrangement these four sub-families should stand near each other. Hut the fact of atrophied fore legs in Panais 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 1 object to, but rather that, 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 au early progenitor.” And what is true of species is just as true of genera and families. 3Ioreover there may be affinities which are so only iu appearance, arrived at through “ biological necessity,” as where the larvae of Par- 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 useful in this genus, considering the exposure to which the species are subject, dwelling on lofty mountains, treeless, often shrub¬ less, and storm-swept. A nt ked and suspended chrysalis would stand a poor chance of surviving in such a region, and it is well known that the Parnassians alone of the Papilioninae have been able to gain and maintain a foothold in elevated districts. That they have done it is owing to the necessary modification of the habits of the larvae, 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. II. EDWARDS. I have followed the recommendation of the Committee of the British Association of 1842, by giving the terminations of family and sub¬ family names in idee, and inx, 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 Hesperidae, 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 Hiibner’s bekannter 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 so-called genera on infinitesimal differences. 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. Such 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 Hiibner’s coitus to be genera, nor even could they be so held, that they received from Hiibner satisfactory definition. Doubleday intro¬ duced a few of these coitus names for his own genera, and out of courtesy attached the letters t; Hub.” to them. 1 1 is 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, an 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 Hesperidae. Mr. DIURNAL LEPIDOPTERA. 5 Scudder, several years ago, furnished me the names lie adopted in bis 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 b:\rely in time to include it in the closing pages of the Synopsis and my volume, with no interval for examination or explanation. To this day it stands a bare list of names, without authority, the groups indicated never having received definition. It was at once 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, (Eut. 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 Hesperidae undoubtedly needed revision, Dr. Otto Speyer kindly consented, at the request of Mr. Lintner, to undertake the task. 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 Hesperidae 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 for 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 owTn 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. Edwards. Coalburgh , W. Va. Feb. 1877. 6 TVM. H. EDWARDS. NAMES OF AUTHORS AND WORKS QUOTED AND 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. Fr. — Annals de la Society Entomologique de France. Bates, H. W. Behr, Dr. Hermann. Bethune, Rev. C. J. Blancij. — Blanchard. Bd. — Dr. Boisduval, leones historique des Lepidopteres, 1833. Species General des Lepidopteres I, 1336. Lepidopteres de la Californie, 1869. Bd.-Lec. — Boisduval and Leconte. Lepidopteres de l’Amerique septentrionale, 1833. Bel. Buf. Soc. N. Sci. — Bulletin of the Buffalo Society of Natural Sciences. Butler, A. G. — Lepidoptera Exotica, 1869-74. Catalogue of the Satyridse in the British Museum, 1868. Can. Ent. — Canadian Entomologist. Can. Nat. — Canadian Naturalist. Cram. — Cramer, Papillons Exotiques, 1779-82. Curtis. — Appendix to Ross’ Arctic Expedition, 1835. Dalm. — Dalman. De Sagra. — Natural History of Cuba. D’Urban. Dodge, G. M. Doub. — Doubleday, Edw. Drury. — 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. Ex. An. Mus. St. PETERSBURG.-pEnumeratio Corporum Animalium Musei Im- persalis Academiae Scientiarum Petropolitanae, Part I, 1855-63. Enc. Meth. — Enclopedie Methodique. Entom. — The Entomologist, London. Ent. Mo. Mag. — Entomologist’s Monthly Magazine, London. Esi>. — Esper, Die Europaischen Schmetterlinge, 1777-94. F. — Fabricius. Systema Entomologiae, 1775. Species Insectorum II, 1781. Mantissa Ins'ectorum II, 1787. Entomologia Systematica III, 1793. DIURNAL LEPIDOPTERA. Feli>. — Felder, Dr. C. Reise der Novara, 1867. Fiscn. — Fischer. Entomographie de la Russie, 1823-24. Fisher. FiTcn, Dr. Asa. Freyer. — Neuere Beitrage zur Schmetterlingskunde, 1831-58. Gen. Di. Lep. — Genera of Diurnal Lepidoptera. Doubleday, Westwood and Ilewitson, 1846-52. Geyer. — Continuation of Hiibner’s Exotischer Schrnetterlinge. Godt. — Godart. Encyelopedie Methodique, IX. Gray, Dr. Edw. Grote, A. R. Gr.-Rob. — Grote and Robinson. Guerin. — Ieonographie de Regne Animal, 1844. Harr. — Harris, Dr. T. W. Insects Injurious to Vegetation, 2d. ed., 1862. Herr.-Schaef. — Herrick. Schaeffer. Hew. — Ilewitson, W. C. Exotic Butterflies. Illustrations of Lycsenidae. Hist. Nat. de Cuba. — Memorias sobre la Ilistoria Natural de la Isla de Cuba, Poey, I, 1851. Hub. — Hubner. Sammlung Europaischer Schrnetterlinge, 1793-1827. Sammlung Exotischer Schrnetterlinge, 1816-24. Zutraege zur Sammlung Exotischer Schrnetterlinge, 1818-25. Humph.- West. — Humphreys and Westwood. British Butterflies, 1848. Kirby, Rev. W: — Fauna Boreali- Americana IV, 1837. Kirtland, Dr. C. Koll. — Kollar. Latr. — Latreille. Leach, Dr. W. E. Led.— Lederer. Lef. — Lefebore, A. L. — Linmeus. Museum Ludovicse Ulricse Reginse, 1764. Systema Natune II, 1767. Mantissa I. Lintn. — Lintner, J. A. Entomological Contributions. Lucas. Maynard, C. J. Mead, T. L. — Report upon Geographical and Geological Explorations, etc., in charge of Lt. G. M. Wneeler, Vol. V. Zoology. Diurnal Lepidoptera. Men. — Menetries, E. Mem. Bost. Soc. N. Hist. — Memoirs of the Boston Society of Natural History. Mo. Ext. Rep. — Missouri Entomological Reports. Morr. — Morris, Rev. J. G. Synopsis of the described Lepidoptera of North America, 1862. Ochs. — Ochsheimer. Die Schrnetterlinge 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. — Centurie Lepidopteres de Pile de Cuba, 1832. Putnam, F. W. Psyche. — Organ of the Cambridge Entomological Club I, 1876. s WM. II. EDWARDS. Pr. Am. Ass. Adv. Sc. — Proceedings of the American Association for the Ad¬ vancement of Science. Pr. E. Soc. Ph. — Proceedings of the Entomological Society of Philadelphia. Pr. Cal. Ac. N. Scr. — 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. Ramis. — Ram bur. Rkak. — Reakirt, T. Reg. Anim. de Cuv. — Regne Animal de Cuvier. Rev. Zool. — Revue Zoologique, Paris. Ridings, James. Rep. IIayd. 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. SCHRANK. Schneid. — Schneider, D. H. Scud. — Scudder, S. H. A Systematic Revision of some of the American Butter¬ flies, 1872. Sill. Jl. — Sillirnan’s American Journal of Science and Arts. Sm.-Abb. — Smith and Abbot. Insects of Georgia, 1797. Somm. — Sommer. * Speyer, Dr. Adolf. Stoll. — Supplementband zu Tapillons Exotiques, (Cramer), 1787-96. Streck. — Strecker, H. Lepidoptera, 1872. Swainson, W. Thumb. — Thunberg. Dissertatio Insecta Suecica II, 1791. Ta. A. E. Soc. — Transactions of the American Entomological Society. Tr. Ciiic. Ac. N. Sci. — Transactions of the Chicago Academy of Natural Sciences. Tr. Ent. Soc. Lond. — Transactions of the Entomological Society, London. Tr. N. Y. St. Ag. Soc. — Transactions of the New York State Agricultural Society. Yon Prunn. — Von Prunncr. Lepidoptera Pedemontana, 1793. Walsh, B. D. Westwood, Prof. J. 0. Whitney, C. P. Wien. Ent. Monats. — Wiener Entomologische Monatschrift. Signs used. — £ , male. 9 > female. >f£, mention of preparatory stages. X, species unknown to me, aud perhaps not properly classified. DIURNAL LEPIDOPTERA. 9 CATALOGUE. PAPILIONIDiE. PAPILIONINiE. PAPILIO, L. 1. Ajax, L. dim. var. Walshit, Edw. But. N. A. 1, 1, pi. 1, >Jc. Marcellus, Cram. sub.-var. Abbotii , Edw. 1. c. pi. 1, fig. G. Ajax , Sm.-Abb. pi. 4, >|<. dim. var. Telamontdes, Feld. — Edw. 1. c. 2, pi. 2, >fc. Ajar , Bd.-Lec. pi. 1. dim. var. Marcellus, Bd.-Lec. 8, pi. 2/ Edw. 1. c. 3, pi. 3, jjc. Ajax , Esper. Ilab. — Pennsylvania to Texas; Mississippi Valley. 2. Sinon, F. — Bd Sp. Gen. 1, 2G0. Bd.-Lec. 11, pi. 3. Morr. 9. Protesilaus, Drury. Ilab. — Florida, (occasional) ; Cuba. 3. Philenor, L. — Sm.-Abb. pi. 3, ;fc. Say, 1, pi. 1. Bd. Sp. Gen. 1, 324. Bd.-Lec. 29, pi. 11, Morr. G. Biley, 2d. Mo. Ent. Rep. 116, 4<. Astinous, Cram. Ilab. — Atlantic to Pacific ; Canada to Gulf of Mexico. 4. Villiersii, Bd.-Lec. 3G, pi. 14. Morr. 12. Hub. — Florida, (occasional) ; Cuba. 5. Machaon, L. — Morr. 12. var. A li ask A, Scud. Pr. Bost. Soc. N. llist. 12, 45. Ilab. — British America ; Alaska. G. Hippocrates, Feld. Verb. Zool. Bot. Ges. 14, 314. var. Oregonia, Edw. Tr. A. E. Soc. 5, 208. Hub. — Oregon; Columbia River, (coll. II. Edwards). TKANS. AMER. ENT. SOC. VI. (2) FEBRUARY, 1877. 10 WM. n. EDWARDS. 7. Zolicaon, Bd. Ann. Soc. Ent. Fr. 2, 10, 281. Morr. 4. Edw. But. N. A. 2, pi. 6, 4<- II. Edw. Pr. Cal. Ac. N. Sci. 5, 103, 4c. Streck. pi. 6, fig. 3, 9 . Halt. — Oregon to Arizona; Montana; Colorado. 8. Indra, lleak. Pr. E. Soc. Ph. 0, 123. Streck. pi. 2, fig. 1, % . Putnaui, Proc. Davenport Ac. N. Sci. 1, pi. 33, 9 . Hah. — Colorado; Nevada. 9. Pergamus, II. Edw. Pr. Cal. Ac. N. Sci. 5, 423. llah. — Southern California. 10. Bairdii, Edw. Pr. E. Soc. Ph. 6, 200. Mead, Ptep. Wheeler Exp. 5, 740. Hah. — Arizona. 11. Brevicauda, Saund. in Pack. Guide, 245. Edw. But. N. A. 2, pi. 8, *. Anticost lends , Streck. pi. 2, fig. 2, 9 • Hah. — Anticosti; Newfoundland; Quebec. 12. Asterias, F. — Bd. Sp. Gen. 1, 332. Bd.-Lec. 14, pi. 4, 4^- Morr. 5. Harr. 263, pi. 4, 4c. Lintn. Pr. E. Soc. Ph. 3, 51, 4c. Troilus , Sin-Abb. pi. 1. Hah. — Atlantic to Pacific; Canada to Gulf of Mexico; Arizona, var. Asteroides, Beak. Pr. Ac. N. Sci. Ph. 1806, 43. Streck. pi. 0, fig. 4, 9 . Ilah. — Southern States ; Arizona; occasional in Northern States, var. Calverleyi, Grote, Pr. E. Soc. Ph. 2, 441, pi. 10, £ . Edw. But. N. A. 2, pi. 11, £ 9v Ilah. — Occasional on Long Island, (coll. Calverley), and Florida, (coll. Mead). 13. Americus, Roll. Sadalus , Lucas, Bev. Zool. 1852, 133, pi. 10. Hah. — Southern California; Arizona, (Wheeler Exp.). 14. Troilus, L. — Bd. Sp. Gen. 1, 334. Bd.-Lec. 26, pi. 10, 4c. M orr. 5. Harr. 200, 4^ • Saund. Can. h nt. 1, i 3 , 4^ • llioneus , Sm. -Abb. pi. 2. Hah. — Atlantic States; Mississippi Valley. DIURNAL LEPIDOPTERA. 11 15. Eurymedon, lid. Ann. See. Ent. Fr. 2, 10, 280. Morr. 4. Edw. But. N. A. 2, 1, pi. 1, 4c. 11. Edw. Pr. Cal. Ac. N. Sci. 5, 104, 4<. Streck. pi. 4, fig. 1, % . Halt. — California to British Columbia; Arizona to Montana. 16. Rutulus, Bd. Ann. Soc. Ent. Fr. 2, 10, 279. Morr. 3. II. Edw. 1. c. 5, 105, >)< . Mead, Hep. Wheeler Exp. 5,741. llab. — Pacific States; Bocky Mountains. 17. Turnus, L. — Sav, pi. 40. Bd. Sp. Gen. 1, 338. Bd.-Lec. 19, pi. 0, 7, Morr. 2. Harr. 208, fig. 97, 98, 4c. Saund. Can. Ent. 1, 74; ibid, 6, 2, 4c. Lintu. Pr. E. Soc. Phila. 3, 50. Edw. But. N. A. 2, pi. 3, 4, 4<- Hob. — Atlantic States to Bocky Mountains; British America to Mackenzie’s Biver ; Alaska; Canada; Nova Scotia; New¬ foundland. dim. var. $ Glaucus, L. — Bd.-Lec. 22, pi. 8, 9. Biditigs, Pr. E. Soc. Ph. 1, 206. Walsh, 1. c. 1, 349. Edw. But. N. A. 2, pi. 6. llab. — Southern New York, and Wisconsin fc> Gulf of Mexico; Kansas to Texas. 18. Daunus, Bd. Sp. Gen. 1, 3-12. Hidings, Pr. E. Soc. 1, 278, fig. 2. Edw. But. N. A. 2, pi. 2. II. Edw. Pr. Cal. Ac. N. Sc. 5, 325, 4c. Streck. pi. 6, fig. 1, 2. Mead, llep. Wheeler Exp. 5, 741. Hub. — Arizona to Montana; Oregon. 19. Pilumnus, Bd. Sp. Gen. 1, 340. Streck. pi. 2, fig. 3, $ . Hab. — Arizona; New Mexico. 20. Palamedes, Drury. Calc/ms, Bd.-Lec. 17, pi. 5, 4^- Morr. 7. Hub. — Florida to Virginia; Gulf States. 21. Cresphontes, Cram. Thoas, Bd. Sp Gen. 1, 355. Bd.-Lec. 31, pi. 12, 13, 4c. Morr. 7. Hob. — Southern and Western States; occasional in Wisconsin, Michigan and Ontario. 22. Polydamas, L. — Bd. Sp. Gen. 1, 321. Bd.-Lec. 37, pi. 15. Morr. 13. Hab. — Florida; Cuba. 12 WM. II. EDWARDS. PARNASSUS, Latr. 23. Clodius, M6n. — Edw. Hut. N. A. 1, 18, pi. 4, fig 5, G, S . Ilab. — California; Montana. 24. Baldur. Clarius , Edw. (nec. Eversm.), 1. c. pi. 4, fig. 1 — 4, £ 9 . Ilab. — California, Sierras ; Utah; Montana, var. M£n£triesii, H. Edw. Pr. Cal. Ac. N. Sci. v. G. I Tab. — California. 25. Smintheus, Doub. Gen. Di. Lep. pi. 4. Edw. 1. c. 1, 21, pi. 5 — 7. Mead, llep. Wheeler Exp. 5, 742. Soyii , Edw. Ilab. — Rocky Mountains; Montaua to New Mexico; California, var. Behrii, Edw. 1. c. pi. 6, fig. 3, 4. Ilab. — Colorado ; California. 2G. Nomion, Fisch. — Bd. Sp. Gen. 1, 397, pi. 2. Morr. 14. Ilab. — Alaska, Sitka, (coll. Behr.); Siberia. 27. Eversmanni, Men. — Scud. Pr. Bost. Soc. N. Hist. 12, 45. Edw. 1. c. 1, 25, pi. 7, fig. 6, 7. Ilab. — Alaska ; Siberia. PIERINiE. PI PR IS, Schrank. 28. Ilaire, Godt. — Poey, Cent. Lep. Cuba, pi. Bd. Sp. Gen. 491. Ilab. — Florida, occasional ; (coll. Mead). 29. Monuste, L. — Bd. Sp. Gen. 1, 495. Morr. 16. C!eomes , Bd.-Lec. 43, pi. 16, >(c. Ilab. — Southern States; Texas. 30. Menapia, Feld. — Morr. 19. Edw. But. N. A. 1, 27, pi. 8, % ; id. Suppl. Notes, 1. c. 1, 9. Streck. pi. 2, fig. 4, 9. H. Edw. Pr. Cal. Ac. N. Sci. 5, 165, >|c. Mead, Rep. Wheeler Exp. 5, 743. Tau, Scud. Pr. Bost. Soc. N. Hist. 3, 183. Ninonia , Bd. Ilab. — California; Oregon; Colorado; Vancouver’s Island. .31- Beckerii, Edw. But. N. A. 1, 28, pi. 8. Mead, 1. c. 5, 745. Hub. — Utah; Nevada; Arizona. DIURNAL LEPIDOPTERA. 1? 32. Sisymbri, Bd. Ann. Soc. Ent. Fr. 2, 10, 284. Morr. 17. Hab. — California. 33. Occidentalis, Beak. Pr. E. Soc. Ph. 6, 133. Mead, Rep. Wheeler Exp. 5, 745. Hab. — Rocky Mountains to the Pacific. 34. Calyce, Edw. Tr. A. E. Soc. 3, 189. Hab. — Nevada, (perhaps spring form of Occidentalis). 35. Protodice, Bd.-Lec. 45, pi. 17. Morr. 17. Riley, 2d. Mo. Ent. Rep. 104, >k- dim. var. Yernalis, Edw. Pr. E. Soc. Ph. 2, 501 ; id. But. N. A. 1, 31, pi. 9. Nasturtii , Edw. Hab. — Middle, Southern and Western States, to Pacific. oG. Oleracea, Bd. Spec. Gen. 1, 518. Harr. 270, fig. 99; id. in Agassiz’ Lake Superior, 38G, pi. 7, fig. 1. Morr. 19. Riley, 2d. Mo. Ent. Rep. 105. >fc. Lintn. Ent. Cont. 1, 28, jjc- Bethune, Can. Ent. 5. 37, >)c. Crucifer arum , Bd. Casta , Kirby, Faun. Bor. Am. 4, pi. 3, fig. 1. lberidis , Bd. Ilab. — Northern States ; Rocky Mountains; New Mexico; Cali¬ fornia; British America; Canada; Nova Scotia. 37. Virginiensis, Edw. Tr. A. E. Soc. 3, 13; id. But. N. A. 1, 32, pi. 9. Hab. — West Virginia; occasional in New York and Canada. 38. Napi, L. dim. var. Pallida, Scud. Pr. Bost. Soc. N. Hist. 3, 183. Castoria , Reak. Nasturtii, Bd. Napi, Streck. pi. 8, fig. 4, 5. dim. var. Nap.e.e, Esper. Venosa , Scud. 1. c. 8, 182. Frigida , Scud. 1. c. 8, 181. Napi, Streck. pi. 8, fig. 2, 3. Hab. — California to British Columbia and Alaska; Labrador, dim. var. Bryoni^e, Ochs. Ilulda, Edw. (arctic form), Tr. A. E. Soc. 2, 370. Hub. — Kodiak. 14 WM. U. EDWARDS. 30. Rapae, L. — Riley, 2d. Mo. Ent. Rep. 108, dim. var. Marginalis, Scud. Pr. Rost. Soc. N. Hist. 8, 182 Rapse, Streck. pi. 8, fig. 6. dim. var. Yreka, Reak. Proc. Ac. N.t Sci. Ph. I860, 32. Resedse, Rd. Rapse, Streck. pi. 8, fig. 7. var. Nov. -Anglic, Scud. Can. Ent. 4, 79. Streck. pi. 8, fig. 8. 1 lab. — United States; Rritisli Columbia; Canada; Nova Scotia. NATHALIE, Bd. 40. Iole, Rd. Sp. Gen. 1, 589. Morr. 12. Mead, Rep. Wheeler Exp. 5, 747. var. Irene , Fitch, Tr. N. Y. St. Ag. Soc. 1856, 485. Ilab. — Missouri to California; New Mexico; Arizona. AATIIOnS VItlS, Bd. 41. Lanceolata, Rd. Ann. Soc. Ent. Fr. 2, 10, 284. Morr. 21. Streck. pi. 6, fig. 5. Edioardsii . Rehr. Hab. — California. 42. Creusa, Doub. Gen. Di. Lep. pi. 7. llyantis, Edw. Tr. A. E. Soc. 3, 205. Ilab. — Colorado to California; Rocky Mountains. 43. Olympia, Edw. 1. c. 3, 266; id. Rut. N. A. 2, pi. 1 of Antli. Hab. — West Virginia ; Missouri; Kansas; Texas. 44. Ausonides, Rd. Lep. de la Cal. 40. Edw. Rut. N. A. 2, pi. 1 of Anth. ; id. Pr. E. Soc. Ph. 2, 81. Mead, Rep. Wheeler Exp. 5, 747. Ilab. — Colorado to California; Rocky Mountains. 45. Cethura, Feld. Reise Nov. 2, 182, pi. 25. Cooper ii, Rehr. — Edw. Rut. N. A. 1, 36, pi. 10. Angelina , Bd. Ilab. — Southern California. 46. Sara, Rd. Ann. Soc. Ent. Fr. 2, 10, 285. Morr. 21. Edw. Rut. N. A. 1, 37, pi. 11. Ilab. — California. DIURNAL LEPIDOPTERA. 15 47. Reakirtii, Edw. Tr. A. E. Soc. 2, 369; id. But. N. A. 1, 35, pi. 10. Hab. — California. 48. Julia, Edw. Tr. A. E. Soc. 4/61. Streck. pi. G, fig. 6, 7. Mead, Rep. Wheeler Exp. 5, 748. JIab. — Colorado; New Mexico; .Arizona. 49. Genutia, Bd. Sp. Gen. 1, 5G5. Morr. 20. Hab. — New York to Virginia; Western States; Texas. CALLIDRYAS, Bd. 50. Eubule, L. — Sm.-Abb. pi. 5, >(c. Bd. Sp. Gen. 1,613. Morr. 25. Bd.-Lec. 74, pi. 24. Butler. Lep. Exot. 58, pi. 22. Ilab. — Southern States; occasional in Mississippi Valley; Ohio; Arizona; West Virginia and Long Island. 51. Sennae, L. — Butler, 1. c. 59, pi. 23. % MarceUina, Cram. 9 Eubule , Cram. var. 9 Orb is, Poey, Cent. Lep. Cuba, pi. Hab. — Florida; Texas; Kansas; Nebraska, occasional; (coll. Dodge). 52. Agarithe, Bd. Sp. Gen. 1, G23. Butler, 1. c. 121, pi. 45. Hab. — Texas; (auct. Butl.). 53. Philea, L. — Bd. Sp. Gen. 1, 619. Butler, 1. c. 92, pi. 35. JIab. — Texas, occasional; also Illinois, (Am. Ent. 2, 340). GOXEI'TERYX, Leach. 54. Lyside, Godt. — Bd. Sp. Gen. 1, G03. Morr. 24. Hub — Texas. COMAS, F. Group I. 55. Eurydice, Bd. Ann. Soc. Ent. Fr. 3, 1855, 32. Edw. But. N. A. 1. 51, pi. 1G. II. Edw. Proc. Cal. Ac. N. Sci. v. G, sfc. Wosnesenski, Men. — Morr. 32. 9 Rhamni , Bd. Hab. — California; Oregon; Arizona. 56. Caesonia, Stoll. — Bd. Spec. Gen. 1, G35. Morr. 27. Bd.-Lec. 67, pi. 22. JIab. — Southern States; Miss. Valley; Kansas; Texas; Ariz. 16 WM. H. EDWARDS. Group II. 57. Meadii, Edw. Tr. A. E. Soc. 3, 2G7 ; id. But. N. A. 1, 58, pi. 10. Mead, Rep. Wheeler Exp. 5, 750. Ilab. — Colorado; Montana; New Mexico. Group III. 58. Hecla, Lcf. Ann. Soc. Ent. Fr. 5, 384. 1 Tab. — Greenland; Disco Island. 59. Boothii, Curtis, App. Ross Exp. G5, pi. A, fig. 3 — 5. var. Chione, Ross, 1. c. fig. 5, 6. Hah. — Arctic America. GO. Eurytheme, Bd. Ann. Soc. Ent. Fr. 2, 10, 286. Morr. 29. Edw. But. N. A. 1, 43, pi. 14. IJ. Edw. Proc. Cal. Ac. N. Sci. 5, 1G2, 4<. Mead, Hep. Wheeler Exp. 5, 748. Am ph iilusa , Bd. Edusa , var. Cal if arnica ;, Men. Ilab. — Southern and Western 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. Ilab. — Southern, Western States to Pacific. 62. Christina, Edw. Pr. E. Soc. Ph. 2, 79; id. But. N. A. 1, 41, pi. 13. Ilab. — British America, Great Slave Lake; Athabasca. 63. Astrsea, Edw. Tr. A. E. Soc. 4, Gl. Ilab. — Montana, f Group IV. 64. Eriphyle, Edw. Tr. A. E. Soc. 5, 202. Ilab. — British Columbia. 65. Philodice, Godt. — Bd.-Lec. 64, pi. 21. Morr. 29. Harr. 272, figs. 100 — 102, Saund. Can. Ent. 1, 54, >|c- Kiley, 2d. Ag. Rep. Mo. 116, Edw. But. N. A. 2, pi. 2. 3 of Colias, 4c. var. Anthi/ale, Hub. Ilab. — United States eastof Rocky Mountains; British America; Canada; Nova Scotia. 66. Chrysomelas, H. Edw. Pr. Cal. Ac. N. Sci. v. 6. Ilab. — California. DIURNAL LEriDOrTER A. 17 67. Occidentalis, Scud. Pr. Bost. Soc. N. Hist. 9, 109. Edw. But. N. A. 1, 55, pi. 18. Ilab. — British America; Slave River; Caribco. 68. Interior, Scud. 1. c. 9, 108. Solivaga, H. Edw. 1. c. v. 6. Hub. — British America; Ontario; Quebec; Alaska. 69. Emilia, Edw. Tr. A. E. Soc. 3, 12. Sab. — California. 70. Harfordii, II. Edw. Pr. Cal. Ac. N. Sci. v. 6. Hub. — California. 71. Barbara, II. Edw. 1. c. v. 6. Sab. — California. 72. Scudderii, Beak. Pr. E. Soc. Ph. 4, 217. Edw. But. N. A. 1, 57, pi. 19. Mead, Rep. Wheeler Exp. 5, 749. Sab. — Colorado; Montana; Utah; British Columbia. 73. Alexandra, Edw. Pr. E. Soc. Ph. 2, 14, pi. 11; id. But. N. A. 1, 39, pi. 12. Mead, 1. c. 5, 749. Jlab. — Colorado; Rocky Mountains. 74. Laurentina, Scud. Shilodice , var. Laurentina , Scud., Pr. Bost. Soc. N. Hist. 18, 4. Sab. — Cape Breton Island ; Quebec ; Maine. 75. Pelidne, Bd. Sp. Gen. 1, 644. Bd.-Lec. 66. Morr. 30. Edw. But. N. A. 2, pi. 1 of Colias. Labradorensis, Scud. Pr. Bost. Soc. X. Hist. 9, 107. Ilab. — Labrador; Alaska, (coll. Behr.). 76. Nastes, Bd. Sp. Gen. 1, 648. Morr. 30. Edw. But. N. A. 2, pi. 1 of Colias. Sab. — Labrador. 77. Chippewa, Edw. Helena , (pre-occupied), Edw. Pr. E. Soc. Ph. 2, SO; id. But. X. A. 1, 40, pi. 12. Sab. — British America, Great Slave Lake. 78. Palseno, L. — Bd. Sp. Gen. 1, 645. Sab. — Labrador; Alaska, (coll. Belir.). TRAXS. AMER. EXT. SOC. VI. (3) FEBRUARY, 1877. 18 WM. H. EDWARDS. Group V. 79. Behrii, Edw. Pr. E. Soc. Ph. 6, 201; id. But. N. A. 1, 42, pi. 13. Hah. — California, Yosemite. TEEMS, Swain. 80. Nicippe, Cram. — Say, 2, pi. 30. Bd.-Lec. 55, pi. 20, Morr. 33. Hab. — Pennsylvania to Gulf; Mississippi Valley; Arizona. 81. Proterpia, F. — Bd. Sp. Gen. 1, 654. Morr. 35. Ilab. — Texas. 82. Gundlachia, Poey, Hist. Nat. de Cuba, 1, 246, pi. 24. Proterpia , var. A. Bd. Sp. Gen. 1, 655. Hab. — Texas, (coll. Boll.). 83. Westwoodi, Bd. Sp. Gen. 1, 666. Hab. — Texas, (coll. Mead). 84. Mexicana, Bd. Sp. Gen. 1, 655, pi. 3. Morr. 36. Hab. — Texas to Arizona; California; occasional in Kansas and Nebraska, (coll. Dodge). S5. Lisa, Bd. Sp. Gen. 1, 661. Bd.-Lec. 53, pi. 19, >fc. Morr. 34. Ilab. — Rhode Island to Gulf of Mexico; Texas; Western States; Kansas. 86. Delia, Cram. — Bd. Sp. Geu. 1, 663. Bd.-Lec. 49, pi. 18, >|c. Morr. 34. Ilab. — Gulf States. 87. Jucunda, Bd. Sp. Gen. 1, 665. Bd.-Lec. 52, pi. 19. Morr. 35. Hab. — Gulf States. NYMPHALID^E. IIELICONINJE. IIII.I4 0MA. Latr. 88. Charitonia, L. — Bd.-Lec. 140, pi. 41. Morr. 39. Ilab. — Florida; Georgia; South Carolina, (coast, sea islands). DIURNAL LEFIDOPTERA. 19 PANAIN.®. DAXAIS, Latr. 89. Archippus, F. — Sm.-Abb.pl. G, >fc. Morr. 38. Bd.-Lec. 137, pi. 40, Harr. 280, >\c. Saund. Can. Ent. 5, 4, ^ . Ri¬ ley, 3rd. Mo. Ent. Rep. 143, >!<. Edw. Can. Ent. 8, 119, Scud. Psyche, 1, 81, Plexippus , Say, 3, pi. 54. Ilai. — United States ; British America ; Canada; Nova Scotia. 90. Berenice, Cram. — Bd.-Lec. 134, pi. 39, Morr. 37. Gilippu.fi , Sm.-Abb. pi. 7, Hub. — Southern States ; Colorado ; Arizona. 91. Strigosa, Bates, Ent. Mo. Mag. 1, 32. Hah. — Texas. NYMPHALINJE. COL.EXIS. Doub. 92. Julia, F. Alcionea , Cram. 3, pi. 215, fig. A. F. G. I lab. — Texas, occasional; (coll. Belfrage). 93. Delila, F. Cillene, Cram. 3, pi. 215, fig. P. E. Hab. — Texas, occasional ; (coll. Belfrage). AGRAELIS, Blanch. 94. Vanillae, L. — Bd.-Lec. 143, pi. 42, ^ . Morr. 40. Passijlorsp , Sm.-Abb. pi. 12. Hab. — Southern States; California; Arizona; occasional in West Virginia. AKGYXXIS, F. Group I. 95. Diana, Cram. — Say, 1, pi. 17, $ . 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, Ilab. — West Virginia to Georgia ; Kentucky; Arkansas. 96. Nokomis, Edw. Pr. Ac. N. Sc. Ph. 1862, 221; id. But. N. A. 1, 71, pi. 23. Mead, Rep. Wheeler Exp. 5, 751, pi. 35. Hub. — Arizona. 20 WM. II. EDWARDS. 97. Leto, Behr. Pr. Cal. Ac. N. Sc. 2, 173. Edw. But. N. A. 1, 83, pi. 29. Sab. — California; Oregon. 9S. Idalia, Drury. — Bd.-Lec. 147, pi. 43. Morr. 41. Harr. 285, fig. 110. Sab. — Massachusetts to Nebraska; Arkansas, var. Ashtaroth, Fisher, Pr. Ac. N. Sc. Ph. 1858, 179, pi. 2; id. 1. c. 1859, 352. Morr. 47. Sab. — New Jersey. 99. Nitocris, Edw. Tr. A. E. Soc. 5, 15. Mead, Rep. Wheeler Exp. 5, 751. Sab. — Arizona. 100. Cybele, F. — Edw. But. N. A. 1,65, pi. 21; id. Can. Ent. 6, 121, ^c. Saund. 1. c. 4, 121, >fc. Sab. — Atlantic and Western States to Kansas; Nebraska; Canada. 101. Carpenterii, Edw. Tr. A. E. Soc. 5, 204. Sab. — Arizona. 102. Aphrodite, F. — Edw. But. N. A. 1, 69, pi. 22; id. Can. Ent. 6, 121, >|c. Harr. 286, fig. Ill, 9 • Sab. — Northern and Middle States; Kansas; Nebraska; Canada; Nova Scotia. 103. Alcestis, Edw. 1. c. 5, 289. Sab. — 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. 1877,5k- Mead, Rep. Wheeler Exp. 5, 754. Sab. — New England; New York; Iowa; Colorado; British America, Columbia to Nova Scotia. 105. Columbia, IT. Edw. Pr. Cal. Ac. N. Sci. G, 1877. Sab. — British Columbia. 106. Nausicaa, Edw. Tr. A. E. Soc. 5, 104. 3Iead, 1. c. 5, 752. Sab. — Arizona. 107. Bremnerii, Edw. 1. c. 4, 63; id. But. N. A. 2, pi. 4 of Argyn. Sab. — Oregon; British Columbia; Vancouver’s Island ; Mon¬ tana, (auct. Scud.). DIURNAL LEPIDOPTERA. 21 108. Behrensii, Edw. 1. c. 2, 370; id. But. N. A. 1, 87, pi. 31. Hab. — California, Mendocino. 109. Bischoffii, Edw. 1. c. 3, 189; id. But. N. A. 2, pi. 3 of Argyu. I lab. — Alaska. 110. Opis, Edw. 1. c. 5, 105; id. But. N. A. 2, pi. 3 of Argyn. Hab. — British Columbia, Bald Mountain. 111. Rhodope, Edw. 1. c. 5, 13; id. But. X. A. 2, pi. 6 of Argyn. I lab. — British Columbia. 112. Halcyone, Edw. But. N. A. 1, 81, pi. 28. Mead, 1. c. 5, 754. Hub. — Colorado; Wyoming. 113. Coronis, Behr. Pr. Cal. Ac. N. Sci. 2, 173, t; No. 2.” Edw. Pr. E. Soc. Ph. 3, 435. Juba , Bd. Hab. — California. 114. Callippe, Bd. Ann. Soc. Ent. Fr. 2, 10,302. Morr. 46. Edw. But. N. A. 1, 75, pi. 25. Hab. — California. 115. Liliana, H. Edw. Pr. Cal. Ac. N. Sci. 6, Dec. 1876. Hab. — -California. 116. Nevadensis, Edw. Tr. A. E. Soc. 3, 14; id. But. N. A. 1, 91, pi. 33. Hub. — Nevada; Utah; Montana; British America, Bocky Mountains. 117. Edwardsii, Beak. Pr. E. Soc. Ph. 6, 137. Edw. But. N. A. 1, 85, pi. 30. Mead, 1. c. 5, 754. ITab. — Colorado; Montana. 118. Meadii, Edw. Tr. A. E. Soc. 5, 67; id. But. N. A. 2, pi. 2 of Argyn. Mead, 1. c. 5, 755. Hab. — Colorado; Montana; Utah. 119. Rupestris, Behr, Pr. Cal. Ac. N. Sci. 2, 175, “ No. 6;” id. 1. c. 3, pi. 84. Edw. But. N. A. 2, pi. 7 of Argyn. ]Ia1>. — California, Soda Spring. 120. Inornata, Edw. Tr. A. E. Soc. 4, 64; id. But. N. A. 2, pi. 5 of Argyn. Hal. — California; Nevada. oo WM. H. EDWARDS. 121. Adiante, Bd. Lep. de la Cal. 61. A (Haste, Edw. Pr. E. Soc. Pb. 3, 436. JIab. — California. 122. Clio, Edw. Tr. A. E. Soc. 5, 106. Hah. — Colorado; Montana. 123. Eurynome, Edw. 1. c. 4, 66; id. But. N. A. 2, pi. 8 of Argyn. Mead, 1. c. 5, 755. Astarte , Edw. (not Doubl.). Hob. — Colorado. 124. Montivaga, Belir. Pr. Cal. Ac. N. Sci. 2, 174, “ No. 4;” id. I. c. 3, 84. Hijleis, Bd. Hah. — California, Sierras. 125. Mormonia, Bd. Lep. de la Cal. 58. Hub. — California. 126. Irene, Bd. Lep. de la Cal. 50, (in Eijl.eis'). Hub. — California. 127. Hesperis, Edw. Pr. E. Soc. Ph. 2, 502; id. But. N. A. 1, 77, pi. 26. Mead, 1. c. 5, 754. Hah. — Colorado; Montana; Utah. 128. Zerene, Bd. Ann. Soc. Eut. Fr. 2, 10, 303. Behr. Proc. Cal. Ac. N. Sci. 2, 175, “ No. 9.” Edw. But. N. A. 1, 89, pi. 32. Hydaspe, Bd. I la b . — ’Cali for n i a . 129. Monticola, Behr. Pr. Cal. Ac. N. Sci. 2, 175, “No. 8;” id. 1. c. 3, 84. Edw. But. N. A. 1, 79, pi. 27. Hab. — California; Oregon. var. Purpurascens, II. Edw. Pr. Cal. Ac. N. Sc. 6, Dec. 1876. Hab. — Oregon. Group II. 130. Myrina, Cram. — Say, 3, pi. 46. Bd.-Lec. 155, pi. 45. Morr. 45. Harr. 286, fig. 112. Saund. Can. Eut. 1, 55, >Jc. Edw. Can. Ent. 8, 161, %. Hab. — Eastern, Middle, and North-western States; British America; Canada; Nova Scotia. DIURNAL LEPIDOPTERA. 23 131. Triclaris, Iliib. — Scud. Pr. Bost. Soc. N. Hist. 17,37. Mead, 1. c. 5, 757. Ossmnus , Bd.-Lec. 157. Morr. 48. lhtb. — Colorado; llocky Mountains; British America; Lab¬ rador. 132. Helena, Edw. Tr. A. E. Soc. 3, 268. Mead, 1. c. 5, 757. llab. — Colorado; Montana; New Mexico. 133. Chariclea, Schneid. — Bd. Spec. Gen. 1, pi. 11, fig. 2. Bd.-Lec. 1(51. Scud. Pr. Bost. Soc. N. Hist. 17,40. Morr. 49. Hub. — Colorado ; British America ; Columbia ; Labradoi ; Greenland. 134. Boisduvalii, Somm. in Bd. leones, 1, 98, pi. 20. Ilab. — British America; Columbia. 135. Freya, Thunb. — Hiib. Eur. Sch. 1, fig. 55, 56. Morr. 46. Scud. 1. c. 17. Mead, 1. c. 5, 756. Tarquinius. Curtis. Hub. — Colorado; Rocky Mountains ; British America. 136. Montinus, Scud. Pr. Ess. Ins. 3, 166; id. Pr. Bost. Soc. N. Hist. 7, (526, pi. 14. Ilab. — New Hampshire, White Mountains. 137. Polaris, Bd. leones, pi. 20. Sp. Gen. 1, pi. 11, fig. 1. Bd.-Lec. 159. Scud. 1 c. 17, 46. Morr. 48. Hub. — Arctic America; Greenland; Labrador. 138. Frigga, Thunb. — Scud. 1. c. 17, 49. Iliib. Eur. Sch. 1, fig. 49, 50. Ilab. — British America; Labrador; Colorado; Rocky Moun¬ tains. 139. Bellona, F. — Bd.-Lec. 164, pi. 45. Morr. 45. Harr. 287, fig. 113, 114. Ilab. — Northern United States ; Rocky Mountains ; California; British America; Canada. 140. Epithore, Bd. Lcp. de la Cal. 58. Edw. Pr. E. Soc. Ph. 2, 504. Mead, 1. c. 5, 756. Ilab. — California; Oregon; Colorado. 141. Improba, Butler, Ent. Mo. Mag. 13, 206. Ilab. — Arctic America, Cambridge Bay. 24 WM. II. EDWARDS. EUPTOIETA, Doub. 142. Claudia, Cram. 1, pi. GO, fig. E. E. Mead, Rep. Wheeler Exp. 5. 750, >|<. Edw. Can. Ent. 2, 163, Columhina , Bd.-Lec. 153, pi. 44. Morr. 44. Hah. — New York to the Gulf of Mexico; Mississippi Valley; Colorado; Arizona; California. 143. Hegesia, Cram. 3, pi. 209, fig. E. F. Columhina , F. Hah. — Southern California, occasional; (coll. II. Edw.). 3IEMT EA, F. Group I. 144. Phaeton, Drury. — Bd.-Lec. 167, pi. 47. Morr. 50. Harr. 288, fig. 115. Edw. But. N. A. 2, pi. 1 of Melitaea, >jc. Ilah. — United States east of Rocky Mountains; Canada; Lake of the Woods. 145. Chalcedon, Doub. Gen. Di. Lep. pi. 23. Edw. But. N. A. 1, 95, pi. 34. H. Edw. Pr. Cal. Ac. N. Sci. 5, 167, *. JIah. — California. 146. Cooperi, Behr. Pr. Cal. Ac. N. Sci. 3, 90. Hah. — California. 147. Anicia, Doub. Gen. Di. Lep. pi. 23. Edw. Pr. E. Soc. Ph. 1, 223. Mead, Rep. Wheeler Exp. 5, 758. Hah. — California; Nevada; Colorado; Montana. 148. Nubigena, Behr. Pr. Cal. Ac. N. Sci. 3, 91. Mead, 1. c. 5, 758, %. Hah. — California; Colorado; New Mexico; Montana. 149. Quino, Behr. 1. c. 3, 90. JIah. — California, Mendocino. 150. Editha, Bd. Ann. Soc. Ent. Fr. 2, 10, 304. Morr. 51. H. Edw. Proc. Cal. Ac. N. Sci. 5, 167. Hah. — California. 151. Helvia, Scud. Pr. Bost. Soc. N. Ilist. 12, 43. Huh. — Alaska. 152. Sterope, Edw. Tr. A. E. Soc. 3, 190. Hah. — Oregon. DIURNAL LEPIDOrTERA. 25 Group II. 153. Palla, Bd. Ann. Soe. Ent. Fr. 2, 10, 305. Morr. 52. Belir. l’r. Cal. Acad. N. Sci. 3, 88. H. Edvv. id. 5, 107, ^c. var. Helcita, Bd. Lep. de la Cal. 55. llab. — California; Nevada. 154. Hoffmanni, Behr. 1. c. 3, 89. var. Whitney ii, Belir. 1. c. 3, 88. llab. — California; Nevada. 155. Gabbii, Belir. 1. c. 3, 89. tSoiiorse, Bd. llab. — Southern California. 156. Acastus, Edw. Tr. A. E. Soc. 5, 10. Mead, Rep. Wheeler Exp. 5, 701. llab. — Nevada; Utah; Montana. Group III. 157. Leanira, Bd. Lep. de la Cal. 57. Belir. Pr. Cal. Acad. N. Sci. 3, 91. Mead, 1. c. 5, pi. 37. llab. — California ; Arizona. var. Ohliterata, H. Edw. Pr. Cal. Ac. N. Sci. 0, Dec. 1876. llab. — California. 158. Thekla, Edw. Tr. A. E. Soc. 3, 191. Hob. — Southern California; Arizona. 159. Minuta, Edw. Pr. Ac. N. Sc. Ph. 1861, 101. Mead, 1. c. 5, pi. 36. Arachne , Edw. llab. — Colorado; Arizona; New Mexico; Texas. PH YCIODES, Doub. Group I. 160. Harrisii, Scud. Pr. Ess. Ins. 3, 167. llab. — NewEnglaud; New York; Canada. 161. Nycteis, Doub. Gen. Di. Lep. pi. 23. Riley, Pr. Aui. Ass. Adv. Sc. 1874, 108, jjc- Lintn. Ent. Cont. 1, 26, Edw. Can. Ent. 5, 224, >|<. Mead, Rep. Wheeler Exp. 5, 762. Jsmeria, Harr. Oenone, Scud. Harrisii , Saund. Can. Ent. 4, 161, ^|<. C Aureum , Bd.-Lec. 192, pi. 51. Interrogationis , Harr. 298, fig. 124. Hah. — United States except Pacific; Arizona; Canada; Nova Scotia. 184. Comma, Harr. dim. var. IIarrisii, Edw. Can. Ent. 5, 184. Comma , Harr. 300, pi. 4, fig. 1. Lintn. Pr. E. Soc. Ph. 3, 55, >(c. Edw. But. N. A. 1, 99, pi. 36, >fc. dim. var. Dryas, Edw. Tr. A. E. Soc. 3, 17 ; id. But. N. A. 1, 107, pi. 37. Ilab. — 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, >|c . H. Edw. Pr. Cal. Ac. N. Sc. 5, 168, Pearson, Can. Ent. 7, 216, jfc. Mead. Rep. Wheeler Exp. 5, 767. Ilab. — 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. Ilab. — California. 187. Hylas, Edw. Tr. A. E. Soc. 4, 68; id. But. N. A. 2, pi. 2 of Grapta. Mead, 1. c. 5; 768. Ilab. — Colorado. 188. Rusticus, Edw. Tr. A. E. Soc. 5, 107. Ilab. — 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, >|<. Ilab. — Mountains of New England and New York; occasional West Virginia to Georgia; British America; Atlantic to Pacific. DIURNAL LEPIDOrTERA. 20 100. Silvius, Edw. Tr. A. E. Soc. 5, 108. Ilab. — California. 101. Zephyrus, Edw. Tr. A. E. Soc. 3, 16; id. Eat. N. A. 1, 121, pi. 40. H. Edw. Pr. Cal. Ac. N. Sc. 5, 169, *. Mead, 1. c. 5, 760. Ilab. — Montana to New Mexico ; Utah; California; Oregon. 102. Gracilis, Gr.-Bob. Ann. N. Y. Lyc. N. Hist. 8, 432. Streck. pi. 8, fig. 14. Ilab. — New Hampshire, White Mountains; British America; Quebec ; Alaska. 193. Oreas, Edw. Tr. A. E. Soc. 2. 373; id. 5, 109. Hob. — California; Oregon. 194. Silenus, Edw. 1. c. 3, 15; id. But. N. A. 2, pi. 1 of Grapta. Hub. — Oregon; Vancouver’s Island. 195. Progne, Cram. — Bd.-Lec. 188, pi. 50. Morr. 56. Harr. 301. Lintn. Pr. E. Soc. Phil. 3, 58, >|c. C Argenteum, Kirby. Ilab. — Northern and Western States; British America; Canada; Nova Scotia; Anticosti. 106. J Album, Bd.— Bd.-Lec. 185, pi. 50. Morr. '56. Harr. 208. Lintn. Pr. E. Soc. Ph. 3, 58, >|<. Hob. — Northern States; Wisconsin; British America to Pacific; Canada; Nova Scotia; South Labrador. VANESSA, F. 107. Antiopa, L. — Bd.-Lec. 173. Morr. 57. Harr. 296, fig. 121, 122, jfc. Lintn. Pr. E. Soc. Ph. 3, 50, >|c. Saund. Can. Ent. 1, 75, ^c. var. - Bunker, Can Ent. 8, 240. var. Lintnerii, Fitch, 3d. llep. N. Y. St. Ag. Soc. No. 211. Morr. 57. Ilab. — United States; British America ; Canada; Nova Scotia ; South Labrador. 108. Californica, Bd. Ann. Soc. Ent. Fr. 2, 10, 306. Morr. 58. Behr, Pr. Cal. Ac. Sci. 4, 123, >|c. Mead, 1. c. 5, 760. II. Edw. Pr. Cal. Ac. N. Sci. 5, 171, sfc. Ilab. — California; Oregon; Colorado. 30 WM, H. EDWARDS. 199. Milberti, Godt. — Bd.-Lec. 187, pi. 50. Morr. 56. Harr. 302, fig. 125. Lintn. Pr. E. Soc. Ph. 3, 61, >|c. Saund. Can. Ent. 1, 76, sjc. Mead, 1. c. 5, 769, 4<. Furcillata, Say, 2, pi. 27. Hab. — Northern States; Wisconsin; Colorado; Montana; Cali¬ fornia; British America; Canada; Nova Scotia. PYR4MEIS, Doub. 200. Atalanta, L. — Bd.-Lec. 175. Morr. 58. Harr. 294, fig. 120, >jc. Hab. — United States; British America; Canada; Nova Scotia; Anticosti. 201. Huntera, Drury. — Sm.-Abb. pi. 9, :4c. Bd.-Lec. 180, pi. 48, Morr. 60. Harr. 292, fig. 119, jJc. Lintn. Pr. E. Soc. Ph. 3, 63, :4c. Saund. Can. Ent. 1, 105, >)<. Ilab. — Northern United States; Kansas; British America; Canada; Nova Scotia; South Labrador. 202. Cardui, L. — Bd.-Lec. 178. Morr. 59. Saund. Cau. Ent. 1, 93, >|<. Scud. Am. Nat. 10, 392, 602, >|c. Ilab. — United States, generally; British America; Canada. 203. Carye, Hub. Samml. Ex. Schmett. 1. Behr, Pr. Cal. Ac. N. Sci. 4, 125, >fc. H. Edw. 1. c. 5, 329, ^c. Hub. — California; Arizona. JUXONIA, Doub. 204. Lavinia, Cram. var. Orytiiia, Sm.-Abb. 1, pi. 8. Coenia, Hiib. — Bd.-Lec. 182, pi. 49, >fc. Morr. 61. Lavinia , Harr. 293. Ilab. — Middle and Southern States to Pacific; occasional Massachusetts and Ontario. AXARTIA, Doub. 205. Jatrophae, L. — Cram. 3, pi. 202, fig. E. F. Morr. 62. Hob. — Texas ; Florida. EUREKA, Bd. 206. Lethe, F. Ent. Syst. 3, 80. Ilab. — Texas, occasional ; (coll. Belfrage). EUNICA, Feld. 207. Modesta, Bates, Ent. Mo. Mag. 1, 113. Ilab. — Texas, occasional; (coll. Boll.). DIURNAL LEFIDOrTERA. 31 208. - ? Monima , Scud, (not Cramer). Hyperipte , Edw. Synop. (not Iliib.). //a&. — Florida, occasional ; (coll. Edwards). TI METES, B<1. 209. Coresia, Godt. Enc. Meth. 9, 359. Zerynthia, Hub. Ex. Schmett. 2. Hub. — Texas, occasional ; (coll. Belfrage). 210. Petreus, Cram. 1, pi. 87, fig. D. E. (. Eleucha , Edw. Synop.). Hob. — Florida, occasional; (coll. Chapman). 211. Eleucha, Doub. Gen. I)i. Lep. pi. 33. Hub. — Texas, occasional ; (coll. Belfrage). 212. Chiron, F. Marius , Cram. 3, pi. 200, fig. T). E. Hub. — Texas, occasional; (coll. Belfrage). CALLICORE, Doub. 213. Clymena, Cram. 1, pi. 24, fig. E. F. Hab. — Florida, occasional ; (coll. Edwards). EIMEXITIS. F. 214. Ursula, F. — Sm.-Abb. pi. 10, >|<. Bd.-Lec. 199, pi. 53, >|c. Morr. 64. Astyanax, F. Hphestion, Stoll. Harr. 283, >|<. Hub. — Atlantic States ; Mississippi Valley; Kansas; Arizona; Canada. 215. Proserpina, Edw. Pr. E. Soc. Ph. 5, 148; id. But. N. A. 1, 125, pi. 41. Ilab. — New York, Catskill Mountains; New Hampshire, White Mountains; Canada; Nova Scotia. 216. Arthemis, Drury. — Say, 2, pi. 23. Bd.-Lec. 202, pi. 54. Morr. 65. Harr. 283, pi. 1, fig. 7. Liutn. Pr. E. Soc. Ph. 3, 62, Mead, Can. Ent. 7, 162, jfc. Lamina , F. Hab. — Northern United States; British America to Pacific; Canada; Nova Scotia. 32 WM. II. EDWARDS. 217. Weidemeyerii, Edw. Pr. Ac. N. Sc. Ph. 1861, 162; id. But. N. A. 1, 127, pi. 42. Morr. 327. 'Mead, Rep. 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, %. Riley, 3rd. Mo. Ent. Rep. 153, ^c. var. - Mead, Can. Ent. 4, 216. Hab. — United States ; Canada; Nova Scotia. 219. Lorquini, Bd. Ann. Soc. Ent. Fr. 2, 10, 301. Morr. 66. Edw. But. N. A. 1, 129, pi. 43. Mead, 1. c. 5, pi. 38. H. Edw. Pr. Cal. Ac. N. Sci. 5, 171, >(c. Hab. — California; Arizona. HETEROCHBOA, 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, Eulalia , Bd. Bredowii, 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. Li/caon, Riley, 6th. Mo. Ent. Rep. 137, >|c. Hab. — Virginia to Gulf of Mex.; Miss. Valley; Kansas; Texas. 222. Leilia, Edw. Tr. A. E. Soc. 5, 103; id. But. N. A. 2, pi. 1 of Apat. Mead, 1. c. 5, 770. Ilab. — Arizona. 223. Alicia, Edw. But. N. A. 1, 133, pi. 45. Ilab. — Gulf States; Georgia to Texas. 224. Clyton, Bd. — Bd.-Lec. 208, pi. 56. Morr. 68. Herse, Riley, 6th. Mo. Ent. Rep. 140, >Jc. dim. var. Proserpina, Scud. Tr. Ac. N. Sci. Chic. 1, 332. Edw. But. N. A. 2, pi. 2, of Apat. dim. var. Ocellata, Edw. 1. c. pi. 2. var. Flora, Edw. 1. c. Hab. — New York to Gulf of Mexico; Mississippi Valley; Kan. DIURNAL LEPIDOFTERA. 33 PAPIIIA, West. 225. Andria, Scud. Syn. List, 248. G/ycerium , Edw. But. N. A. 1, 135, pi. 40, Kiley, 2d. Mo. Knt. Rep. 125, >|c. Hab. — Illinois to Kansas; Texas. 226. Troglodyta, F. t Astyanax , Cram. 4, 337, fig. A. B. Hab. — Florida; (auct. Scud.). SATYRINiE. N EOJfYM PIIA , West. 227. Eurytris, F. Eurythris, Bd.-Lec. pi. 51, >)<. Morr. 73. Harr. 306, fig. 120. Saund. Can. Ent. 2, 139, 5jc. 1 lab. — Atlantic States; Mississippi Valley; Canada. 228. Sosybius, F. — Bd.-Lec. pi. 63, Morr. 74. Ilab. — 31 iddle and Southern States; Mississippi Valley. 229. Rubricata, Edw. Tr. A. E. Soc. 3, 212. Hub — Texas. 230. Areolatus, Sm.-Abb. 1, pi. 13,^c. Bd.-Lec. pi. 63, 5(c. Morr. 74. Hab. — Gulf States; occasional in New Jersey; (coll. Meyer). 231. Gemma, Hub. — Bd.-Lec. pi. 62, jjc. Morr. 73. Hab. — West Virginia to Gulf States. 232. Henshawi, Edw. Tr. A. E. Soc. 5, 205. Hab. — Arizona. 233. Canthus, L. — Bd.-Lec. pi. 60. Morr. 74. Boisduvalli , Harr. 305, fig. 128. Ilab. — Northern States; Ontario; Quebec. COE A OA Y.1I PIS A , West. 234. California, West.-IIen. Gen. I)i. Lep. 398, pi. 67. Calif bniius, Bd. var. Eryngii, H. Edw. Pr. Cal. Ac. N. Sci. v. 6, Dec. 1876. var. Galactinus, Ann. Soc. Ent, Fr. 2, 10, 309. Morr. 80. Hab. — California ; Montana. 235. Inornata, Edw. Pr. Ac. N. Sc. Ph. 1861, 163. Morr. 328. Ilab. — Montana; British America, Lake Winnipeg. TRANS. AMER. ENT. SOC. VI. (5). FEBRUARY, 1877. 34 WM. H. EDWARDS. 236. Ochracea, Edw. 1. c. 18G1, 163. Morr. 328. Mead, Rep. Wheeler Exp. 5, 772. Ilab. — Rocky Mountains; Montana to Arizona; Kansas; British America, Lake Winnipeg. 237. Ampelos, Edw. Tr. A. E. Soc. 3, 213. Ilab. — Oregon ; Montana. 238. Kodiak, Edw. 1. c. 2, 375. Ilab. — Kodiak. 239. Brenda, Edw. 1. c. 2, 375. Ilab. — California, Los Angelos. 240. Pamphiloides, Reak. Pr. E. Soc. Ph. G, 146, X- Ilab. — California. EKEBIA, Dalm. 241. Fasciata, Butl. Cat. Satyr. B. Mus. 92, pi. 2, fig. 8. Ilab. — Boreal America. 242. Discoidalis, Kirby, Faun. Bor. Am. 4, 298, pi. 3, fig. 2, 3. Morr. 75. Ilab. — Boreal America. 243. Vesagus, AVest.-IIen. Gen. Pi. Lep. 380, pi. G4, X- Ilab. — Rocky Mountains; (prob. B. Am.). 244. Rossii, Curtis, App. Ex. Ross. G7, pi. A. Ilab. — Boreal America. 245. Mancinus, West. -Hen. Gen. Pi. Lep. 380, pi. 54, X- Ilab. — Rocky Mountains; British America; Alaska. 24G. Haydenii, Edw. Rep. Hayden Exp. Monta. 1872, 467 ; id. Tr. A. E. Soc. 5, 19. Ilab. — Montana. 247. Callias, Edw. Tr. A. E. Soc. 3, 274. Tyndarus , Esper. vai\ Callias, Mead, Rep. Wheeler Exp. 5, 775. Ilab. — Colorado; Mexico. 248. Epipsodea, Butl. Cat. Satyr. Brit. Mus 80, pi. 2. Mead, 1. c. 5, i 1 5. Rhodia , Edw. Tr. A. E. Soc. 3, 273. Ilab. — Colorado; New Mexico. DIURNAL LEPIDOPTER A. DEKIS, West. 240. Portlandia, F. — Bd.-Lec. 226, pi. 58, 4<. Andi'omacha, Iliib. — Say, 2, pi. 36. Morr. 78. Ha I). — Middle and Southern States; Mississippi Valley; Iowa; Montana. GYROCIIEILUS, Butl. 250. Tritonia, Edw. Tr. A. E. Soc. 5, 18. Hub. — Arizona. IIIPPAKC'IIIA, F. 251. Ridingsii, Edw. Pr. E. Soc. Ph. 4, 201. Streck. pi. 4, fig. 6, 9 . Mead, 1. c. 5, 774. Hub. — Colorado; Nevada; Montana. SATYRUS, West. 252. Pegala, F. — Morr. 77. Edw. Pr. E. Soc. Ph. 6, 195. Hub. — Gulf States. 253. Alope, F. — Bd.-Lec. 228, pi. 59, Morr. 76. Harr. 305, fig. 127. Edw. Pr. E. Soc. Ph. 6, 196-200. Hub. — Atlantic States; Mississippi Valley ; Ontario. 254. Boopis, Behr. Proc. Cal. Ac. N. Sc. 3, 164. Hub. — California; Oregon; Montana. 255. Nephele, Kirby, Faun. Bor. Am. 4, 297. Morr. 76. Harr. 306, fig. 130. Edw. 1. c. 6, 195. Hub. — 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. Hnffmanni, Streck. pi. 4, fig. 8, 9 J ph 8, fig. 12, % . Hub. — Utah; Southern California; Arizona, Apache. 257. Gabbii, Edw. Tr. A. E. Soc. 3, 193. Hub. — Oregon. 258. Phocus, Edw. 1. c. 5, 14. Hub. — British Columbia; Montana. • 259. Ariane, Bd. Ann. Soc. Ent. Fr. 2, 10, 307. Morr. 77. Hub. — California. 36 WM. n. EDWARDS. 260. Meadii, Edw. Tr. A. E. Soc. 4, TO. Mead, 1. c. 5, 774. I lab. — Colorado ; Arizona. 261. Silvestris, Edw. Pr. Ac. N. Sc. Ph. 1861, 162. Sab. — California; Nevada; Montana. 262. Sthenele, Bd. Ann. Soc. Eut. Fr. 2, 10, 308. Morr. 77. Streck. pi. 4, fig. 7, $ . Sab. — California. 263. Oetus, Bd. Lep. de la Cal. 63. Sab. — California. 264. Charon, Edw. Tr. A. E. Soc. 4, 69. Mead, Rep. Wheeler Exp. 5, 773. Sab. — Montana; Colorado; New Mexico. CIII 0X0 8 AS, Bois. 265. Gigas, Butl. Cat. Satyr. Br. Mus. 161, pi. 2. Edw. But. N. A. 2, pi. 1, 9 , pi. 2, % , of Chionobas. Sab. — Vancouver’s Island. 266. Iduna, Edw. 1. c. 2, pi. 1 of Chionobas. Sab. — California. 267. Californica, Bd. Lep. de la Cal. 62. Edw. 1. c. 2, pi. 2 of Chionobas. Sab. — California. 268. Nevadensis, Feld. Reise Nov. 3, pi. 62, fig. 4, 5. Sab. — •California. 269. Chryxus, West. -lien. Gen. Di. Lep. 383, pi. 64. Edw. Pr. E. Soc. Ph. 2, 82. Scud. id. 5, 5. Mead, 1. c. 5, 777. Tai/gete, Edw. Calais , Scud. Sab. — 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, % . Sab. — -Rocky Mountains ; Colorado; Montana. 271. Tarpeia, Esper, Eur. Schmett. 1, pi. 83. Butl. Cat. Satyr. Brit. Mus. p. 161. A lanna, Men. Sab. — Boreal America. DIURNAL LEPIDOPTERA. 37 72. Bore, Esper, Eur. Schmett. 1, pi. 100. Scud. Pr. E. Soc. Ph. 5, 10. Bootes , Iliib. Taygete, Geyer. Ilab. — Labrador; Newfoundland; Greenland. 73. Tutta, Hub. Eur. Schmett. 1, 15". 014, 015. Scud. 1. c. 5, 3. Balder, Iliib. Ilab. — British America; Hudson’s Bay; Quebec; Labrador. 74. Semidea, Say, 3, pi. 50. Harr. 304. fig. 126. Morr. 80. Scud. 1. c. 5, 3; id. Geol. Bep. N. II. 1, 344. Mead, 1. c. 5, 770. Oeno , Bd. leones, 195, pi. 39. Scud. 1. c. 5, 13. Also, Bd. Crambis, Freyer. Assimilis, Butl. Hab. — Labrador; Boreal America; "White Mountains of New Hampshire; Colorado; New Mexico. 75. Subhyalina, Curtis, App. Ross Exp. OS. Ilab. — Boreal America. LIBYTHEINiE. I.IItYTIICV. F. 70. Bachmanni, Kirtland, Sill. Jl. 2, 13, 336. Edw. But. N. A. 2, pi. 1 of Libythea, Hab. — Atlantic States ; Mississippi Valley ; Kansas; Texas. 77. Carinenta, Cram. 2, 108, fig. E. F. Ilab. — New Mexico; Arizona. ERYCINID/E. ERYCININ.E. LEHOMAS, West. 78. Mormo, Feld. — Morr. 104. Dumeti , Behr. Mormonia , Bd. Hub. — California; Utah; Arizona; New Mexico. 79. Cythera, Edw. Tr. A. E. Soc. 4, 345. Mead, Rep. Wheeler Exp. 5, pi. 30. Ilab. — Arizona. 38 WM. H. EDWARDS. 280. Virgulti, Belir. Pr. Cal. Ac. N. Sc. 3, 178. Sonorensis, Feld. Ilab. — Southern California. 281. Palmerii, Edw. Tr. A. E. Soc. 3, 195. Ilab. — Arizona. CIIARIS, West. 282. Caenius, L. Pamila , Bd.-Lec. 131, pi. 37. Morr. 104. Ilab. — Southern States. 283. Borealis, Gr.-Rob. Ann. N. Y. Lyc. N. Hist. 8, 351. Ilab. — Middle States; Illinois. 2S4. Nemesis, Edw. Tr. A. E. Soc. 3, 212. Hal). — Arizoua. EOIEXIA, Latr. 285. Atala, Poey, Cent. Lep. Cuba, pi. 2. Toxea, Gray. Ilab. — Florida. LYC^NID/E. THE CLIN^E. TIIECIiA, F. Group I. 286. Grunus, Bd. Ann. Soc. Ent. Fr. 2, 10, 289; id. Lep. de la Cal. 43. Morr. 100. Ilab. — California, Yosemite. Group II. 287. Crysalus, Edw. Tr. A. E. Soc. 4, 344. Ilab. — Colorado; Utah. 288. Halesus, Cram. — Bd.-Lec. 83, pi. 25, >fc. Morr. 91. Dolichos , Hub. Juanita , Scud. Hah. — Gulf States; California. 289. M-Album, Bd.-Lec. 86, pi. 26, >fc. Morr. 92. Psyche , Bd.-Lec. 88, pi. 27. Ilab. — Gulf States; occasional in Virginia and Pennsylvania. DIURNAL LEPIDOPTERA. 3D Group III. 200. Favonius, Sm.-Abb. 1, pi. 14, Ilab. — Gulf States; South Carolina. 201. Autolycus, Edw. Tr. A. E. Soc. 3, 271. Hah. — Texas; Missouri. 202. Alcestis, Edw. 1. c. 3, 271. Bab. — Texas. 203. Humuli, Harr. 270, pi. 4, fig. 3. Favonius , Bd.-Lec. 05, pi. 30, Morr. 05. var. Hyperici , Bd.-Lec. 00, pi. 28. Bab. — Middle and Southern States; Mississippi Valley. 204. Melinus, Hub. Zutraeg. fig. 121, 122. Bd. Ann. Soc. Ent. Fr. 2. 10, 287. var. Pudica, II. Edw. Trans. Cal. Ac. Sc. 6, Dec. 1870. Bab. — California. 205. Acis, Drury, 1, pi. 1. Morr. 101. Bab. — Florida, Key West. 206. Strigosa, Harr. 270. Edw. But. N. A. 1, 144, pi. 48. Saund. Can. Ent. 1, 09, Liparops , Scud. (nec. Bd.-Lec.). Bab. — Atlantic States ; Mississippi Valley ; Canada. 207. Ontario, Edw. Tr. A. E. Soc. 2, 200; id. But. N. A. 1, 143, pi. 48. Bab. — Ontario; New England, (auct. Scud.). 208. Calanus, Hub. Fa facer , Bd.-Lec. 92, pi. 29, >|c. Morr. 95. lnorata , Gr.-llob. Saund. Can. Ent. 1, 57, >)<. Loruta , Gr.-llob. Bab. — Atlantic States; Mississippi Valley; Texas; New Mexico; Canada. 200. Edwardsii, Saund. in Gr.-Rob. Tr. A. E. Soc. 1, 172. Falacer , Harr. Calanus , Gr.-llob. Bab. — Northern States, Maine to Nebraska; Colorado; Canada. 40 WM. H. EDWARDS. 300. Acadica, Edw. Pr. Ac. N. Sc. Ph. 1862, 55; id. But. N. A. 1 140, pi. 48. Saund. Can. Eut. 1, 95, %. Souhegan, Whitney. Jlab. — Northern States; Canada. 301. Californica, Edw. 1. c. 1862, 223. var. Cygnus, Edw. Tr. A. E. Soc. 3, 207. Borns , Bd. Hah. — California; Oregon; Vancouver’s Island. 302. Auretorum, Bd. Ann. Soc. Ent. Fr. 2, 10, 288. Morr. 99. Ilah. — California. 303. Sylvinus, Bd. 1. c. 2, 10, 287. Morr. 99. Hah. — California. 304. Dryope, Edw. Tr. A. E. Soc. 3, 19, 193. Hah. — California. 305. Putnami, H. Edw. Pr. Cal. Ac. N. Sci. 6, Sept. 1876. Hah. — Utah, Spring Lake. 306. Adenostomatis, H. Edw. 1. c. 6, Sept. 1876. Ilah. — Southern California, Tehachipi Pass. 307. Spadix, II. Edw. 1. c. 6, Dec. 1876. Ilah. — California. 308. Tetra, Behr. in Edw. Tr. A. E. Soc. 3, 19. Hah. — California. 309. Chalcis, Behr. in lit. Edw. 1. c. 2, 376. Hah. — California. 310. Ssepium, Bd. Ann. Soc. Ent. Fr. 2, 10, 288. Morr. 99. Hah. — California; Utah; Colorado. 311. Nelsoni, Bd. Lep. de la Cal. 43. Ilah. — California, Y osemite. 312. Ninus, Edw. Tr. A. E. Soc. 3, 270. Ilah. — Colorado. 313. Spinetorum, Bd. in Hew. Illust. Part 3, fig. 198, 199. Bd Lep. de la Cal. 42. Ilah. — California, Mount Shasta and Placer County. 314. Siva, Edw. Tr. A. E. Soc. 5, 110. Ilah. — Arizona. DIURNAL LEPIDOrTERA. 41 315. Smilacis, lid. — Bd.-Lec. 107, pi. 33, >fc. Morr. 08. Auburniana , Harr. 277. Hub. — Atlantic States; Mississippi Valley; Texas. 316. Castalis, Edw. Tr. A. E. Soc. 3, 208. Ilab. — Texas. 317. Poeas, lliib. — Bd.-Lec. Ill, pi. 35. Morr. 103. Ilab. — Southern States ; West Virginia; Kentucky. 318. Columella, F. Eurytulus , Hub. Samml. Exot. Schniett. 2. Modesta, Maynard, Am. Nat. 7, 178. Ocellifera , Cr. Ilab. — Florida; Texas; occasional in Western New York, (coll. Grote). Group IV. 319. Behrii, Edw. Tr. A. E. Soc. 3, 18. Hub. — California; Nevada. 320. Augustus, Kirby, Faun. Bor. Am. 4, 298, pi. 3, fig. 4, 5. Harr. 279, fig. 108. Morr. 103. Ilab. — Boreal America ; Canada; Eastern States. 321. Iroides, Bd. Ann. Soc. Ent. Fr. 2, 10, 289. Morr. 100. Ilab. — Oregon ; British Columbia. 322. Irus, Godt. — Bd.-Lec. 101, pi. 31. Morr. 97. var. Ai-sace, Bd.-Lec. 103, pi. 32. var. Henrici, Gr.-Rob. Tr. A. E. Soc. 1, 174. Ilab. — Atlantic States; Mississippi Valley; Kansas; Van¬ couver’s Island. 323. Eryphon, Bd. 1. c. 2, 10, 290. Morr. 100. Ilab. — California. 324. Niphon, Hub. — Bd.-Lec. 105, pi. 33. Morr. 98. Ilab. — Atlantic States; Mississippi Valley ; Colorado; Canada; Nova Scotia. 325. Affinis, Edw. Pr. Ac. N. Sc. Ph. 1862, 223. Ilab. — Utah. 326. Dumetorum, Bd. Ann. Soc. Ent. Fr. 2, 10, 291. Morr. 100. Vivid 7s, Edw. 1. c. 223. Ilab. — California; Nevada; Oregon. TKAXS. AMER. EXT. SOC. VI. (6) FEBRUARY, 1877. 42 WM. H. EDWARDS. 327. Laeta, Edw. 1. c. 18G2, 55; id. But. N. A. 1, 139, pi. 48. Clothilde , Edw. 1 lab. — Maine to West Virginia; Ontario; Quebec. 328. Fuliginosa, Edw. 1. c. 1861, 164. Suasa, Bd. Ilab. — California, Lake Tahoe. 329. Titus, F. Mops us, lliib. — Bd.-Lec. 109, pi. 34, Morr. 102. Saund. Can. Ent. 1, 96, >|c. Ilab. — United States generally; British America; Ontario; Quebec. LYCAENINiE. FEYISECA, Grote. 330. Tarquinius, F. Cratsegi, Bd.-Lec. 128, pi. 37. Morr. 85. Porsenna , Scud. Ilab. — Atlantic States; Mississippi Valley ; Ontario Quebec: Nova Scotia. CHRYSOPHANUS, Doub. Group I. 331. Arota, Bd. Ann. Soc. Ent. Fr. 2, 10, 293. Morr. 86. Street. pi. 10, fig. 27, 28. Ilab. — California. 332. Virginiensis, Edw. Tr. A. E. Soc. 3, 21. Ilab. — California; Nevada. 333. Hermes, Edw. 1. c. 3, 21. Ilab. — California; Nevada. Group II. 334. Xanthoides, Bd. Ann. Soc. Ent. Fr. 2, 10, 292; id. Lep. de la Cal. 45. Morr. 86. Street, pi. 10, fig. 12, 13. Ilab. — California.. 335. Dione, Scud. Tr. Chic. Ac. Sci. 1, 330. Uab. — Iowa; Nebraska; Missouri; Kansas. 336. Gorgon, Bd. 1. c. 2, 10, 292. Morr. 86. Street, pi. 10, fig. 17. Ilab. — California. DIURNAL LEPIDOPTERA. 43 337. Thoe, Bd.-Lec. 125, pi. 38. Morr. 84. Saund. Can. Enfc. 1, 57, 4c. Jfj/Uus, Edw. Syuop. nec Cram. Hab. — Northern United States; Maine to Nebraska; Kansas; Canada. 338. Nais, Edw. Tr. A. E. Soc. 5, 291. Hab. — Arizona. Group III. 339. Mariposa, Reak. Pr. E. Soc. Ph. G, 149. Streck. pi. 10, fig. 25, 26. Nivalis, Bd. Hub. — California. 340. Ze roe, Bd. Lep. de la Cal. 45. lanthe , Edw. Tr. A. E. Soc. 3, 211. Streck. pi. 10, fig. 23, 24. Hab. — 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, 4(?. Phlseas, Bd.-Lec. 123. Morr. 84. Hypophfseas, Bd. Ilab. — Northern States ; West Virginia; Kentucky; California, (auct. Boisduval); British America, Columbia to Canada; Nova Scotia. 44 WM. H. EDWARDS. Group IV. 345. Cupreus, Edw. Tr. A. E. Soc. 3, 20 ; id. But. N. A. 2, pi. 1 of Chrys. Hab. — Oregon; California; Sierras. 346. Rubidus, Bchr. Pr. E. Soc. Ph. 6, 208. Edw. But. N. A. 2, pi. 1 of Chrys. 1 lab. — Oregon; Montana; Nevada. 347. Sirius, Edw. 1. c. 3, 270; id. But. N. A. 2, pi. 1 of Chrys. Mead, 1. c. 5, 781. Ilab.— Montana ; Colorado ; Arizona. Ll’CAEXA, 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, % , 7, 9 . Mead, 1. c. 5, 781. Hab. — California; Utah; Colorado. 349. Clara, II. Edw. Pr. Cal. Ac. N. Sc. 6, Feb. 1877. Hab. — California, Los Angelos. 350. Speciosa, H. Edw. 1. c. v. 6, Dec. 1876. Hab. — California, Kern County. 351. Lycea, Edw. Pr. E. Soc. Ph. 2, 507. Mead, 1. c. 5, 785, Rapahoe , Beak. — Streck, pi. 10, fig. 14, $ , 15, 9 • Hob.— Montana; Colorado; Arizona. 352. Arnica, Edw. 1. c. 2, 80. Hab. — ‘British America, Mackenzie’s Biver. 353. Sagitifera, Feld. Beise Nov. 2, 281, pi. 35. Catalina, Beak. Pr. Ac. N. Sc. Ph. 1866, 244. Streck. pi. 10, fig. 1, % , 2, $ . Lorquini , Behr, Pr. Cal. Ac. N. Sc. 3, 280. Daania , Edw. Mead, 1. c. 5, 785. var. Viaca, Edw. Tr. A. E. Soc. 3, 209. Rhsea, Bd. //a&.-^Colorado ; California. DIURNAL LEPIDOPTERA. 45 354. Icaroides, Bd. Ann. Soc. Ent. Fr. 2, 10, 297. Morr. 88. Dsedalus , Behr, Pr. Cal. Ac. N. Sc. 3, 280. var. Pardalis, Behr, 1. c. 3, 280. Mintha , Edw. Tr. A. E. Soc. 3, 194. Maricopa , Reak. Erymus , Bd. Hab. — California. A species subject to much variation. 355. Fulla, Edw. Tr. A. E. Soc. 3, 194. Ilab. — California, Sierras. 356. Pembina, Edw. Pr. Ac. N. Sc. Ph. 1862, 224. Ilab. — British America, Slave Lake. 357. Pheres, Bd. Ann. Soc. Ent. Fr. 2, 10, 297. Morr. 89. var. Evius, Bd. lep de la Cal. 49. Ilab. — California to Colorado; Oregon; British Columbia; Vancouver’s Island, 358. Phileros, Bd. Lep. de la Cal. 50. Helios , Edw. Tr, A. E, Soc. 3, 208. Ilab. — California; Utah; Arizona. 359. Ardea, Edw. Tr, A. E. Soc, 3, 209. Ilab. — California. 360. Kodiak, Edw. 1. c, 3, 20. Hab. — Kodiak. 361. Orcus, Edw. 1. c. 3, 276. Ilab. — California. 362. Saepiolus, Bd. Ann, Soc. Ent. Fr. 2, 10, 296. Morr. 88. Mead, 1. c. 5, 784, >(c, dim. var. $ Aehaja, Behr, Pr. Cal. Ac. N. Sci. 3, 280, Rvfescens, Bd. Mead, 1. c. 5, 784. Ilab. — California to Colorado. Group II. 363. Xerxes, Bd. 1. c. 2, 10, 296. Morr. 88. Ilab , — -California, 46 WM. U. EDWARDS. 364. Antiacis, Bd. 1. c. 2, 10, 300. Morr. 00. var. Behrii, Edw. Pr. Ac. N. Sc. Ph. 1862. 224. Polyphemus , Bd. var. Mertila , Edw. Pr. E. Soc. Ph. 6, 206. Halt. — California; Arizona. 365. Couperi, Grote, Bui. Buf. Soc. N. Sc. 1, 185. Pembina , Streck. pi. 10, fig. 10, S , 11, $ . Hah. — 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. Ilab. — Atlantic States; Michigan; Ohio; Colorado. 367. Sonorensis, Feld. Beise Nov. 2, 281, pi. 35, fig. 3, 4. Regia , Bd. Lep. de la Cal. 46. Edw. But. N. A. 2, pi. 1 of Lyc. Ilab. — Southern California, Los Angelos. Group III. 368. Tehama, Beak. Pr. Ac. N. Sc. Ph. 1866, 246. Cilia, Behr, Pr. Cal. Ac. N. Sc. 3, 281. Nest os, Bd. Ilab. — California. 369. Orbitulus, Yon Prunner. Streck. pi. 10. fig. 16, £ . Rusfica, Edw. Pr. E. Soc. Ph. 4, 203. Mead, 1. c. 5, 783. Ilab. — Colorado; Bocky Mountains. 370. Aquilo, Bd. leones, 1, 62, pi. 12, fig. 7, 8. Franklinii , Curtis, App. Boss Exp. 69, pi. A, fig. 8, 9. Ilab. — Boreal America; Labrador. Group IV. 371. Enoptes, Bd. Ann. Soc. Ent. Fr. 2, 10. 298. Morr. 89. Ilab. — California, Sierras; Arizona. 372. Glaucon, Edw. Tr. A. E. Soc. 3, 210. Mead, 1. c. 5, 782. Ilab. — Colorado. 373. Battoides, Behr, Pr. Cal. Ac. N. Sc. 3, 282. Mead, 1. c. 5, 782. Ilab. — California, Sierras; Nevada; Colorado. 374. Lupini, Bd. Lep. de la Cal. pi. 46. Minehalia , Scud. Ilab. — California, Yosemite; Montana. DIURNAL LEPIDOrTERA. 47 375. Melissa, Edw. Tr. A. E. Soc. 4, 346. Streck. pi. 10, fig. 8, $ , 9, $ . Mead, 1. c. 5, 783, pi. 36. 1 lab. — Arizona; New Mexico; Colorado; Montana; Nevada. 376. Scudderii, Edw. Pr. Ac. N. Sc. Ph. 1861, 164; id. 1. c. 1862, 225. Ilab. — 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. Sc. Ph. 1861, 163. Streck. pi. 10, fig. 4, % , 5, 9 . Cajona , Beak. Argyrotoxus , Behr, Pr. Cal. Ac. N. Sc. 3, 281. Philemon , Bd. Ilab. — California to Colorado ; Montana; Oregon. 379. Piasus, Bd. Ann. Soc. Ent. Fr. 2, 10, 299. Morr. 89. Echo , Edw. Pr. E. Soc. Ph. 2, 506. Ilab. — California; Arizona; Colorado. 380. Pseudargiolus, Bd.-Lec. dim. var. Violacea, Edw. Pr. E. Soc. Ph. 6, 201; id. But. N. A. 1, 147, pi 49. dim. var. Pseudargiolus, Bd.-Lec. 118, pi. 36. Edw. 1. c. 1, 151, pi. 50; id. Can. Ent. 7, 81, Argiolus , Sm.-Abb. Ilab. — Middle, Southern and Western States. 381. Neglecta, Edw. Pr, Ac. N. Sci. Ph. 1862, 56; id. But. N. A. 1, 153, pi. 50. Sauud. Can. Ent. 1, 100, Ilab. — Northern and Middle States; British America ; Canada. 382. Lucia, Kirby, Faun Bor. Am. 4, 299, pi. 3, fig. 8, 9. Harr. 275. Ilab. — Northern States; British America ; Canada; Southern Labrador. Group V. 383. Amyntula, Bd. Ann. Soc. Eut. Fr. 2, 10, 294. Morr. 87. Ilab . — California; Arizona. 48 WM. H. EDWARDS. 384. Comyntas, Godt. — 13d. -Lee. 120, pi. 3G. Morr. 83. Harr. 275, 5|c. Edw. Can. Ent. 8, 202, ;Jc. Ilab. — Atlantic States ; Mississippi Valley ; Rocky Mountains; British America; Canada. 385. Shasta, Edw. Pr. Ac. N. Sci. Ph. 1862, 224. Catchas, Behr, Pr. Cal. Ac. N. Sc. 3, 281. Nivium , Bd, Ilab. — -California; Oregon; Nevada; Utah. 386. Monica, Reak. Pr. Ac. N. Sci. Ph. 1S66, 244. Streck. pi. 10, fig. 18. Ilab. — Southern California; Arizona. 387. Alee, Edw. Tr. A. E. Soc. 3, 272. %ola, Mead, (not Reakirt), Rep. Wheeler Exp. 5, 783. Ilab. — Colorado; Arizona; Texas; occasional in Kansas; (coll. Snow.). 388. Gyas, Edw. 1. c. 3, 210. Ilab. — Arizona. 389. Filenus, Poey, Cent. Lep. Cuba, pi. 2. Bd.-Lec. 114, pi. 35. Morr. 82. Ilab. — -Gulf States. 390. Isophthalma, Ilerr.-Schaeflf. Pseudofea, Morrison, Bui. Buf. Soc. N. Sc. 1, 186. Ilab. — Florida; Georgia. 391. Ammon, Lef.-De. Sag. Hist. N. Cuba, 612, pi. 16. Ilab. — Florida Keys. 392. Fea, Edw. Tr. A. E. Soc. 3, 211. Ilab. — Texas. 393. Exilis, 13d. Ann. Soc. Ent. Fr. 2, 10, 294. Morr. 87. Hah. — California ; Arizona. 394. Marina, Reak. Pr. Ac. N. Sc. Ph. 1868, 87. Ilab. — Southern California, Los Angelos; (coll. Russell). 395. Theonus, Lef.-De. Sag. Hist. N. Cuba, 611, pi. 16. Cassius, Morrison, Bui. Buf. Soc. N. Sc. 1, 187. Ilab. — Florida Keys. DIURNAL LEPIDOPTERA. 49 HESPERID^. SECTION^ I. C A RT E R OC' E 1*11 A ECS, Led. 39G. Mandan, Edw. Pr. E. Soc. Ph. 2, 20, pi. 5. Mesapano, Scud. Pr. Post. Soc. N. Hist. 11, 3S3. Ska da, Edw. Ilab. — British America, Pacific to Labrador; California, Men¬ docino; New Hampshire, White Mountains. 397. Omaha, Edw. 1. c. 2, 21. Mingo , Edw. Cal i/or nica, Scud. Syst. Rev. 54. Hah. — Colorado; California; occasional in West Virginia, (coll. J. E. Meyer). AXCYLOXYPHA, Feld. 398. Numitor, F. — Morr. 120. Purr, Hub. Marginatum, Harr. 308, fig. 131. Hub. — Atlantic and Western States; Texas; Kansas; Ne¬ braska. COP.EOllES, Speyer. 399. Procris, Edw. Tr. A. E. Soc. 3,215, % , 9 . var. Waco, Edw. 1. c. 2, 122, % . Minima, Edw. 1. c. 190, % . Ilab. — Texas. 400. Arene, Edw. 1. c. 3, 214. Ilab. — Arizona; Texas. TIIYAIEEIC I S, Speyer. 401. Hylax, Edw. 1. c. 3, 274. Ilab. — Colorado ; Dakota. 402. Garita, Reak. Pr. E. Soc. Ph. 6, 150. Poivescheik, Parker, Am. Ent. 2, 271. Hah. — Colorado; Illinois; Iowa; Nebraska. TUANS. AUER. ENT. SOC. VI. (7) MARCH, 1877. 50 WM. II. EDWARDS. PAMPIIIIi.4, F. Group I. 403. Massasoit, Scud. Pr. Ess. Ins. 3, 171. Ilab. — New England; Long Island; Middle States; Texas; Colorado. 404. Zabulon, Pd. -Lee. pi. 76. Morr. 116. Hobomolc , Harr. 313, fig. 137. Quadriquina , Scud. dim. var. 9 , Pocahontas, Scud. Pr. Ess. Ins. 3, 171. Hob. — Atlantic States; Mississippi Valley ; Texas; Arizona; Canada. Group II. 405. Sylvanus, F. — Bd. Ann. Soc. Ent. Fr. 2, 10, 313. Ilab. — Europe; California, (auct. Boisduval). 406. Sylvanoides, Bd. 1. c. 2, 10, 313. Morr. 107. Sonora , Scud. Syst. Rev. 57. Ilab. — California. 407. Ruricola, Bd. 1. c. 2, 10, 315, X- Morr. 109. Hob. — 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. Manitoba, , 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, (nec Bd.) 1. c. 351, fig. 21, 22. Ilab. — British America, Pacific to Labrador; Rocky Moun¬ tains; Montana to Arizoua ; Colorado to California. 409. Sassacus, Scud. Pr. Ess. Ins. 3, 173; id. Mem. Bost. Soc. N. Hist. 2, 346, pi. 10, fig. 5. 7. Ilab. — New England ; Illinois; Georgia. 410. Pawnee, Dodge, Can. Ent. 6, 44. Ilab. — Nebraska. DIURNAL LRPIDOPTERA. 51 411. Ottoe, Edw. Pr. E. Soc. Ph. G, 207. Scud. Mena. Post. Soc. N. Hist. 2, 348, pi. 10, fig. G. Ilab. — Indian Territory ; Kansas; Nebraska. 412. Napa, Edw. 1. c. 4, 202, pi. 1. Dacotoh, Edw. Ridingsii , Reak. Pr. E. Soc. Ph. 6, 151, 9 • dim. var. 9 , Melane, Edw. Tr. A. E. Soc. 2, 312. Hob. — Colorado. 413. Draco, Edw. 1. c. 3, 274. Ilab. — Colorado. 414. Metea, Scud. Proc. Ess. Ins. 3, 177. Ilab. — Connecticut; New York; Texas. 415. Uncas, Edw. Pr. E. Soc. Ph. 2, 19, pi. 5. Ilab. — Pennsylvania; Delaware; Ohio; Kansas; Dakota; Colorado; New Mexico; British America. 416. Licinus, Edw. Tr. A. E. Soc. 3, 275. Ilab. — Texas. 417. Seminole, Scud. Syst. Rev. 55. Ilab. — Florida. 418. Attalus, Edw. 1. c. 3, 276. Hub. — Texas. 419. Yuma, Edw. Tr. A. E. Soc. 4, 346. Ilab. — Arizona. 420. Meskei, Edw. Can. Ent. 9, March, 1877, 9 • Ilab. — Texas. 421. Snowi, Edw. Can. Ent. 9, Feby. 1877. Ilab. — Colorado. 422. Leonardus, Harr. 314, fig. 138. Morr. 110. Ilab. — New England to West Virginia; Kansas. 423. Nemorum, Bd. Ann. Soc. Ent. Fr. 2, 10,314. Morr. 107. Yreka, Edw. Pr. E. Soc. Ph. 6, 207. Ilab. — California. 52 WM. H. EDWARDS. 424. Agricola, Bd. 1. c. 2, 10, 314. Morr. 108. Hub. — California. 425. Pratincola, Bd. 1. c. 2, 10, 315, X- Morr. 108. Hob. — California. 426. Campestris, Bd. 1. c. 2, 10, 316, X- Morr. 108. Hah. — California. 427. Huron, Edw. Pr. E. Soc. Ph. 2, 16, pi. 1. Hah. — Atlantic States; Mississippi Valley; Texas; Kansas; Arizona. 428. Phylaeus, Drury. — Bd.-Lec. pi. 78. Morr. 118. Vitellius , F. Bucephalus , Humph. -West. Br. But. 126, pi. 40, fig. 1 — 3. Hah. — Middle and Gulf States to Pacific. 429. Brettus, Bd.-Lec. pi. 75, % . Morr. 118. Wingina, Scud. Pr. Ess. Ins. 3, 173, $ 9 • Orono, Scud. Syst. Rev. 58. Hah. — Gulf States; West Virginia. 430. Pontiac, Edw. Pr. E. Soc. Ph. 2, 17, pi. 11, S - Conspicua, Edw. 1. c. 2, 17, pi. 5, 9 • Parker, Can. Ent. 3, 51, %. Hah. — Michigan; Iowa; Nebraska; Illinois. 431. Chusca, Edw. Tr. A. E. Soc. 4, 346. Ilab. — Arizona. 432. Sabuleti, Bd. Aun. Soc. Ent. Fr. 2, 10, 316. Morr. 109. Halt. — California. 433. Otho, Sm.-Abb. pi. 16. JIab. — Gulf States. var. Egeremet, Scud. Pr. Ess. Ins. 3, 174. Otho, Bd.-Lec. pi. 77, jEtna , Scud. Syst. Rev. 58. Jfab. — Atlantic States to Florida; Mississippi Valley ; Canada. DIURNAL LEPIDOPTERA. 53 434. Peckius, Kirby, Faun. Bor. Am. 4, 300, pi. 4. Morr. 120. Wamsutta, Harr. 318, fig. 141. llab. — Northern and Middle States to Wisconsin; Kansas; Canada. 435. Mystic, Edw. Pr. E. Soc. Ph. 2. 15, pi. 1. Scud. Pr. Ess. Ins. 3, 172. 1 lab. — New England; New York, Catskill Mountains; Canada. 430. Cernes,* Bd.-Lec. pi. 70. Arogos , id. 1. c. pi. 70. Ahaton , Harr. 317, fig. 140. Origines , Morr. 117. JIab. — New England; Middle and Northwestern States; California. 437. Manataaqua, Scud. Pr. Ess Ins. 3, 175. Cernes. Harr. 310. llab. — Atlantic to Pacific; Canada to Gulf of Mexico. 438. Vestris, Bd. Ann. Soc. Ent. Fr. 317, X- Morr. 109. JIab. — California. 439. Osceola, Liutn. 28th. Rep. N. Y. State Mus. llab. — California, Mendocino. 440. Metacomet, Harr. 317. Rurea , Edw. Pr. Ac. N. Sc. Ph. 1862, 58. var. Kioioah , Reak. Pr. E. Soc. Ph. 0, 150. llab. — Northern States ; Wisconsin; Kansas; Canada. 441. Accius, Sm. -Abb. pi. 23,9 • Monoco , Scud. Pr. Ess. Ins. 3, 178. var. Nortonii , Edw. Tr. A. E. Soc. 1, 287. Runctella, Gr.-Rob. 1. c. 1, 1. JIab. — Gulf States. 442. Deva, Edw. Tr. A. E. Soc. 5, 292. I/ab. — Arizona. * The Fabrieian name Taumas for Cernes cannot be retained from its collision with the older Thaumas, Ilufnagel. — S. 54 WM. II. EDWARDS. 443. Maculata, Edw. Pr. E. Soc. Ph. 4, 202, pi. 1. Ilab. — Gulf States; occasional in New York, (coll. Meske). 444. Panoquin, Scud. Pr. Ess. Ins. 3, 178. Ophis, Edw. Tr. A. E. Soc. 21G. Ilab. — Gulf States. 445. Ocola, Edw. Pr. E. Soc. Ph. 2, 20, pi. 11. Ilab. — Gulf States. 446. Ethlius, Cram. 4, pi. 392, fig. A, B. Chemnis, F. Olynthus, Bd.-Lec. pi. 75. Morr. 113. Ilab. — Gulf States. 447. Verna, Edw. Pr. Ac. N. Sc. Ph. 1862, 57. Ilab. — Maryland to Georgia; West Virginia; Kansas. 448. Horus, Edw. Tr. A. E. Soc. 3, 277. Ilab — Texas. 449. Bimacula, Gr.-Rob. Ann. N. Y. Lyc. N. Hist. 8, 433. Acanootus, Scud. Pr. Bost. Soc. N. Hist. 11, 381. Illinois , Dodge, Can. Eut. 4, 217. Ilab. — Massachusetts to Nebraska; Illinois. 450. Arpa, Bd.-Lec. pi. 68, Morr. 117. Ilab. — Gulf States; Nebraska, (coll. Dodge). 451. Bulenta, Bd.-Lec. pi. 67, >|<- Morr. 117. Palatka, Edw. Tr. A. E. Soc. 1, 287. Hab. — Gulf States. 452. Viator, Edw. Pr. E. Soc. Ph. 4, 202, pi. 1. Ilab. — Gulf States; Illinois; Wisconsin; New Jersey. 453. Vitellius, Sm.-Abb. pi. 17. Iowa , Scud. Pr. Bost. Soc. N. Hist. 11, 6. Ilab. — Georgia; Iowa; Nebraska. 454. Delaware, Edw. Pr. E. Soc. Ph. 2, 19, pi. 5, £ . Logan, Edw. 1. c. 2, 18, pi. 1, 9 ■ Hub. — Pennsylvania to Florida; West Virginia; Illinois to Kansas; Nebraska; Dakota. DIURNAL LEPIDOPTERA. 455. Osyka, Edw. Tr. A. E. Soc. 1, 288. Hah. — Gulf States. 456. Comus, Edw. Tr. A. E. Soc. 5, 20G. Hab. — Texas. 457. Eufala, Edw. 1. c. 2, 311. Hab. — Louisiana ; Texas. 458. Fusca, Gr.-Rob. 1. c. 1, 2. Hab. — Gulf States. 459. Nereus, Edw. 1. c. 5, 207. Hab. — Arizona. 460. Hianna, Scud. Pr. Post. Soc. N. Hist. 11, 382. Hab. — Massachusetts to Nebraska. AJIBLYSCIHTES, Speyer. 4G1. Vialis, Edw. Pr. Ac. N. Sci. Ph. 18G2, 58. Hab. — Middle, Southern and Western States. 4G2. Eos, Edw. Tr. A. E. Soc. 3, 276. Hab. — Texas; Georgia, 463. Samoset, Scud. Pr. Ess. Ins. 3, 176. Hegon, Scud. 1. c. 3, 176. Nemoris , Edw. Pr. E. Soc. Ph. 2, 507 ; 1. c. 4, pi. 1. Allernata, Gr. Rob. Tr. A. E. Soc. 1, 3. Hab. — Northern and Middle States; Georgia; Wisconsin; Iowa ; Ontario. 464. Textor, Hub. Zutracg. fig. 515, 516. Oneko, Scud. Pr. Ess. Ins. 3, 176. Wakulla, Edw. Tr. A. E. Soc. 2, 311. Hab. — Gulf States; Georgia to Texas. SECTION II. PYRGUS, West. 465. Ericetorum, Rd. Ann. Soc. Ent. Fr. 2, 10, 313. Morr. 122. Alba, Edw. Pr. E. Soc. Ph. 6, 206. Ilub. — California; Oregon; Arizona. 466. Oceanus, Edw. Tr. A. E. Soc. 3, 213. Ilab. — Arizona. 56 WM. H. EDWARDS. 467. Tessellata, Scud. Syst. Ilev. 52. Oileus, West. Oilus, Bd. Morr. 121. llab. — Atlantic to Pacific ; Pennsylvania to Gulf of Mexico ; Texas; Arizona. 468. Centaureae, Ilamb. Ruralis, Bd. 1. c. 2, 10, 311. Morr. 121. Wi/andot, Edw. Pr. E. Soc. Pb. 2, 21, pi. 5. Ilab. — New York; West Virginia; Colorado; Labrador. 469. Ricara, Edw. 1. c. 4, 203, pi. 1. Ilab. — Colorado ; California. 470. Petreius, Edw. Tr. A. E. Soc. 3, 195. Hub. — Nevada; California. 471. Caespitatis, Bd. Ann. Soc. Ent. Fr. 2, 10, 312, X- Morr. 121. Ilab. — California. 472. Scriptura, Bd. 1. c. 2, 10, 312. Morr. 121. Ilab. — California ; Arizona. THA3TAOS, Bd. 473. Brizo, Bd. — Bd.-Lec. pi. 66, Harr. 309, fig. 132. Morr. 114. Ilab. — Atlantic, Southern and Western States; Texas; Kansas; British America ; Ontario. 474. Icelus, Lintn. Ent. Cont. 1, 30, pi. 7, fig. 5, 6. Ilab. — New England; Middle States; Illinois. 475. Lucilius, Lintn. 1. c. 1, 32, pi. 7, fig. 1, 2. Ilab. — New York; Middle and Western States; Dakota. 476. Ausonius, Lintn. 1. c. 1, 34, pi. 7, fig. 11, 12. Ilab. — Middle States; West Virginia. 477. Tages, L. var. Cervantes , Grasl. — Bd. Ann. Soc. Ent. Fr. 10, 310. Ilab. — California, (auct. Boisduval). DIURNAL LEPIDOPTERA. 57 478. Persius, Scud. Pr. Ess. Ins. 3, 170. Hub. — Northern, Middle and Western States; Colorado; New Mexico; California. 470. Martialis, Scud. Tr. Chic. Ac. N. Sci. 1, 335. Hub. — Massachusetts to Georgia; Mississippi Valley ; Kansas. 4S0. Juvenalis, F. — Sm.-Abb. pi. 21, >|<. Ed. -Lee. pi. G5, >|<. Harr. 309, * . Morr. 1 14. Cost, (din, West. Ennius , Scud. -Burg.* Pr. Eost. Soc. N. Hist. 13, 296. Iloratius , Scud.-Eurg. 1. c. 13, 301. Virgil ins, Scud.-Eurg. 1. c. 13, 302. Terentius , Scud.-Eurg. 1. c. 13, 292. Ooidius, Scud.-Eurg. 1. c. 13, 295. Hub. — Atlantic and Gulf States; Mississippi Valley. 481. Propertius, Scud.-Eurg. id. 1. c. 13, 299. Tibullus, Scud.-Eurg. 1. c. 13, 298. Hub. — California. 482. Plautus, Scud.-Eurg. 1. c. 13, 304, X- Hub. — Florida. 483. Tristis, Ed. Ann. Soc. Ent. Fr. 2, 10, 311. Morr. 115. II ah. — California ; Arizona. 484. Funeralis, Scud.-Eurg. 1. c. 13, 293. Hub. — Texas. 485. Pacuvius, Lintn. 28th. Eep. N. Y. State Mus. Hub. — Arizona. I.INTlV'fllS I A, nov. gen. 486. Zampa, Edw. Tr. A. E. Soc. 5, 207. Hub. — Arizona. * The species credited to Scud. -Burg, were characterized solely from pecu¬ liarities in the genital armor. I do not regard such a characterization as a “description” entitling a species to recognition, and declined to admit these in the Synopsis. But in deference to Mr. Lintner’s wishes I give them here, as I would in exceptional cases give manuscript names. How valueless the genital armor is for specific distinctions may be inferred from the synonymy. — E. TRANS. AS1ER. ENT. SOC. VI. (8) MARCH, 1877. 58 WM. n. EDWARDS. PIIOEISOR.4, Speyer. 487. Catullus, Cram. — Sm.-Abb. pi. 24. Morr. 115. Hob. — Atlantic, Southern and Western States ; Texas ; Kansas ; Colorado; New Mexico. 488. Alpheus, Edw. Tr. A. E. Soc. 5, 206. Ilnb. — New Mexico. 489. Hayhurstii, Edw. 1. c. 3, 22. Hab, — West Virginia to Kansas; Texas; New Mexico. ACIIYEORES, West. 490. Thraso, Hub. — Bd. Sp. Gen. 1, pi. 13, fig. 6. Tamenund , Edw. Tr. A. E. Soc. 3, 215. Hab. — Texas. EUDAJIUS, Swain. Group I. 491. Pylades, Scud. Pr. Bost. Soc. N. Hist. 12. Bathyllus , Harr. 312, fig. 135. Nevada , Scud. Syst. Bev. 50. Hab. — Northern States to Gulf of Mexico; Dakota; Colorado to California; British America. 492. Bathyllus, Sm.-Abb. pi. 22. Bd.-Lec. pi. 74. Morr. 106. Ilab. — Southern States; Kansas; New Mexico; occasional in New York. 493. Lycidas, Sm.-Abb. pi. 20. Bd.-Lec. pi. 71, >|< . Morr. 106. Lyciades, Hub. Hub. — Southern States ; Mississippi Valley ; occasional in New York. 494. Epigena, Butler, Lep. Exot. 65, pi. 25, fig. 6. Orestes, Lintn. 28th Rep. N. Y. State Mus. Hab. — Texas, (coll. Meske). 495. Cellus, Bd. — Bd.-Lec. pi. 73, Morr. 105. Hab. — Southern States; West Virginia; Kentucky; Arizona. Group II. 49G. Hesus, West.-LIew. Gen. Di. Lep. pi. 78. Hab. — Texas. DIURNAL LEPIDOFTERA. 59 497. Amyntas, F. Lividus, Hub. Sam ml. Exot. Schmett. Savignyi, Latr. Ilab. — Florida, Key West. 498. Tityrus, F. — Sm.-Abb. pi. 19, >fc. Bd.-Lec. pi. 72, >)<. Harr. 310, pi. 5, Morr. 112. Ilab. — Atlantic States; Mississippi Valley ; Kansas; Dakota; California. Group III. 499. Proteus, L. — Sm.-Abb. pi. 18, >fc. Bd.-Lec. pi. G9, >|<. Morr. 10G. Ilab. — Southern States. 500. Simplicius, Stoll. Supplt. pi. 39, fig. 6. Eurycles , Latr. Ilab. — Texas; Arizona. ERYCIDES, West. 501. Urania, Wcst.-Hew. Gen. Di. Lep. pi. 79. Ilab. — Texas. 502. Texana, Scud. Syst. llev. 47, X- Ilab. — Texas. 503. Sanguinea, Scud. 1. c. 47, X- Ilab. — Texas. PYRRIIOPYGA, West. 504. Araxes, Hew. Desc. Ilesp. 2, No. 3. Ilab. — Arizona; (coll. Wheeler Exp.). REGATIIYIIUS, Riley. 505. Yuccae, Bd.-Lec. pi. 70. Riley, 8th. Mo. Ent. Rep. 1G9. Ilab. — Southern States; Arizona; New Mexico. 50G. Cofaqui, Strecker, Pr. Ac. N. Sci. Ph. 187G, 148, X- Ilab. — Florida. 60 WM. H. EDWARDS. Species hitherto accredited to the North American fauna , but omitted in this Catalogue for want of authentication. PAPILIONIDiE. PIERINJ3. Callidryas Cypris, F.— Bd. Sp. Gen. 1, 623. Butler, Lep. Exot. 106, pi. 39. Ilab. — Mexico; New Mexico, (Edw. Synop.) Rhodocera Mserula, F.— Bd.-Lec. 71, pi. 23 .=Ecclipsis, Cram. Hl ib. — Mexico; Venezuela; Florida and New York, (Bd.-Lec.) Rhodocera Clorinde, Godt. — Bd. Sp. Gen. 1, 599. Ilab. — Mexico; Brazil; New Mexico, (Edw. Synop.) Colias Rutilans, Bd. Sp. Gen. 1, 642, pi. 3, C. fig. 3. Hab. — Peru; United States, (Weidemeyer); California, (Mene- tries.) Terias Midea, Men. — Bd. Sp. Gen. 1, 659. Ilab. — Hayti; California, (Menetri^s.) Terias Elathea, Cram. — Bd. Sp. Gen. 1, 664. * Hab. — Hayti; Surinam; Brazil; United States, (Weidemeyer) ; Florida, (Edw. Synop.) Terias Palmira, Poey, Hist. Nat. de Cuba, 1, 249, pi. 24, fig. 4 — 6. Hab. — Cuba; Venezuela; United States, (Weidemeyer); Georgia, (Edw. Synop.) NYMPH ALIDiE. HELICONINiE. Mechanitis Californica, Reak. Pr. E. Soc. Ph. 5, 223. Hab. — Mexico; California, Los Angelos, (Reakirt.) Ithomia Diaphana, Drury, 2, pi. 7. Ilab. — West Indies; United States, (Weidemeyer); Florida, (Edw. Synop.) Ithomia Lycaste, F. — Reak. Pr. E. Soc. Ph. 5, 218. Ilab. — Mexico; California, Los Augelos, (Reakirt); Kansas, (Kirby’s Cat.) Ithomia Phono, Geyer, in Hiib. Zutr. Exot. Schrnett. fig. 987 — 8. Scud. Syn. List, Bui. Buf. Soc. N. Sci. 1, 246. Ilab. — New Grenada; Florida, (Geyer.) DIURNAL LEPIDOPTERA. 61 NYMPHALIN.®. Ageronia Feronia, L. — Drury 1, pi. 10. llab. — Mexico; Central America; Texas, (Edw. Synop. auct. Reak. in lit.) Ageronia Fornax, Hiib. Samml. Exot. Schmett. Hab. — Mexico; Central America; Texas, (Edw. Synop. auct. lleukirt, in lit.) Argynnis Astarte, Doub. Gen. Di. Lep. pi. 23. Hub. — Jamaica; United States, (Doubleday.) Argynnis Nenoquis, Reakirt, Pr. Ac. N. Sc. Ph. 1S66, 247. Hub. — Rocky Mountains;' Oregon, (Reakirt.) This is Dia. Eur. Sp. and one of Lorquin’s. Argynnis Morrisii, Reakirt, 1. c. 1866, 245. Hab. — Oregon, (Reakirt.) This is Euphrosyne, Eur. Sp. and one of Lorquin’s. Melitaea Theona, Men. En. An. Mus. St. Petersburg, 1, 86, pi. 2. Hub. — Nicaragua; Southern California, (Mentkries.) Phyciodes Ismeria, Bd.-Lec. .168, pi. 46. Ilab. — Carolina; Georgia, (Bd.-Lec.) The figures purport to have been drawn by Abbot, and Mr. Scudder says were copied from an unpublished plate of Abbot’s. The descrip¬ tion in Bd.-Lec. is made up from their own plate, not from Abbot’s. And no matter what the latter was, by the plate and description in Bd.-Lec. the species must stand or fall. An unpublished plate carries no authority, and it is not possible to tell from Bd.-Lec. what insect is intended. Eiesia Hermas, Hew. Exot. But. 3, pi. b.— Genigueh, Reak. Pr. E. Soc. Ph. 5, 225. Hab. — Mexico; Southern California, (Reakirt.) Smyrna Karwinski, Geyer, in Hiib. Samml. Exot. Schmett. Hab. — Mexico; United States, (Weidemeyer) ; Texas, (Edw. Synop.) Victorina Steneles, L. — Cram. 1, pi. 79. Hab. — Central America; New Mexico, (Edw. Synop.) Apatura Idyja, Hub. Samml. Exot. Schmett. Hab. — Central America; Texas, (Edw. Synop.) Megistanis Acheronta, Y .—Cadmus, Cram. 1, pi. 22, fig. A. B. llab. — Tropical America; Texas, (Edw. Synop.) 62 WM. H. EDWARDS. Aganisthos Orion, F. — Bd.-Lec. 195, pi. 52 .— Odius, F.=Danae, Cram. Ilab. — Tropical America; Florida, (Bd.-Lec.) LIBYTHEINiE. Libythea Motya, Bd.-Lec. pi. 64. Ilab. — West Indies ; Southern States, (Edw. Synop.) ERYCINIDiE. ERYCININ^E. Eumenia Minijas, Hub. Samml. Exot. Sclimett. Bd. Sp. Gen. 1, pi. 21, fig. 6. Ilab. — Mexico; Central America; Texas, (Edw Synop.) LYCiENIDiE. THECLI1SLE. Thecla Liparops, Bd.-Lec. 99, pi. 31. This case is parallel to that of Ismeria — the plate credited to Abbot, and the description made up from the plate as it stands in Bd.-Lec. No such insect exists in nature, and science has made no provision for imaginary ones. LYCiENINiE. Lycaena Tejua, Reak. Fr. Ac. N. Sc. Ph. 1866, 245. Streck. pi. 10, fig. 3. Ilab. — Mexico; Southern California, (Reakirt.) Addendum to List of Species. Lycaena Lotis, Lintn. 28tli. Rep. N. Y. State Mus. Ilab. — California, Mendocino. Allied to Scudderii. Addenda to List of Authors. Bunker, R. Desc. Hesp. — Descriptions of Hesperidse, by W. C. Hewitson. Graslin, in Ann. Soc. Ent. Fr. Kirby’s Cat. — Catalogue of Diurnal Lepidoptera, 1871. Scudder, S. H. — Synonymic List of the Butterflies of North America. Scud. -Burg. — On Asymmetry in the Appendages of Hexapod Insects, by S. H. Scudder and E. Burgess, 1870. Veiih. Zoon. Bot. Ges. — Verhandlungen Zoologisch-botanischen Gesellschaft in Wien. Weidemeyer, J. W. — Catalogue of North American Butterflies, 1864. Zoological Illustrations. — W. Swainson, 1820 — 21. DIURNAL LEPIDOPTERA. 63 APPENDIX. I give the definitions of Sections and Genera of the Ilesperidae as sent by Dr. Speyer, with his notes. The last three Genera were not mentioned by him. It is proper to say that Dr. Speyer ascribed Thymelicus, Pyrgus and Nisoniades to Hiibner, and Amblyscirtes and Pholisora to Scudder. I am compelled, however, to substitute for these authors the names of the first one who defined each of these genera, and in the case of Thymelicus and the last two named, for this reason, to Dr. Speyer himself. If there has been an earlier definition of Thymelicus I have not been able to find it, though the name has been used by many authors from Stephens to this day. Nisoniades (1816) being rejected as a coitus name, and, were that not enough, for want of satisfactory definition, though it was used and defined by Westwood (1852), would give way to Thanaos, lloisd. (1832). Mr. Butler, who uses the coitus names liberally, nevertheless employs Thanaos, Bd. with this explanation : “ the genus Nisoniades cannot stand, as its type is an Aehylodes.” Eut. Mo. Mag. 7, 97. — E. HESPERIDiE. SECTION I. Tibiae generally with spines, at least the middle ones; male always with¬ out costal fold; usually, a black, scaleless discoidal stripe (stigtna) on fore wings. Note. — I have been unable to find a sharp limit between the two principal divi¬ sions of Ilesperidae characterized by Mr. Scudder, (Buf. Bui. 1. 195), and I doubt if such an one exists, unless perhaps indicated by the — not examined by myself — presence or absence of the corneous sheath “at the posterior extremity of the alimentary canal” in the males, which Mr. Scudder gives as a difference. The costal fold, mentioned by him, is wanting in some species of his Hesperides. (Pyrgus Sao, Orbi/er, etc., Thanaos Marloyi). Nevertheless though the first quoted character should not be prevailing, the two tribes of Mr. Scudder seem to me to possess some natural rights. Therefore I have tried at least to indicate them. It seemed to me most natural to begin the series with those genera which are related to the bulk of the other Rhopalocera by the non-existence of the tibial epiphysis and the spurs on the middle tibiae; the more as there exists no costal fold. I will not contend that this arrangement is the most natural; such 04 WM. II. EDWARDS. a judgment can only be given by one who bas mastered the Hesperidse of the whole world and not a mere fragment of them only. At the end of them is to be placed Euschemon at all events, which makes the transition to the Ileterocera. — S. C A R T 1 1 ROCEPIIALUS, Led. Tibiae without tibial epiphysis; those of the hind legs without middle spurs; knob of antennae elongate-ovoid; tip blunt, conical; last joint of palpi concealed by the long bristles of the middle joint; abdomen extending beyond the anal angle of hind wings. Note. — The tibial epiphysis I call the mostly flat spine or lancet-shaped append¬ age on the inner side of the tibia of the fore leg, possessed by most of the Iietero- cera, but among the Rhopalocera by the Papilionidse and Hesperidse only. In the latter this appendage is externally covered with scales, interiorly and at the apex naked, and not reaching the end of the tibiae. — S. AXCYLOXYPIIA, Feld. Tibiae with tibial epiphysis; those of the hind legs with middle spurs, (as in all the following genera). Similar to the foregoing genus; knob of antenna elongate-ovoid, rounded at tip, with a very short,. slender spine attached to the last joint; last joint of palpi free, long, perpendicularly erected, slender, sdbu- late; abdomen of male slender, twice as long as head and thorax; fore wings elongated, blunt; hind wings rounded, the costal margin long, surpassing the inner angle of fore wings; the inner margin short, not produced at the anal angle. ( OP CODES, Speyer. Antennae short, one- third as long as the triangular fore wings, at three-fifths of their length suddenly inflated to an ovoid knob, widely rounded in front, sub-truncate; last joint of palpi nearly free, perpendicular, a little recurved, subulate; hairs of the brush at base of antennse dilated at tip; femora thinly villose; tibiae nearly naked, those of middle legs with a pair of very short, fine spurs; abdomen glossy-scaled, hairless ; the male with a fine black longitudinal stigma on the disc, which forms on the under side a prominent ridge, but is there covered with scales. Note. — As much as I dislike the multiplication of genera, still less the separation of sinlge species, I feel myself compelled by the striking difference of character between a whole series of organs to separate generieally Procris and Thymelicus. 1 hope that the diagnosis of the new genus will justify the separation. The scaly hairs at the base of antennae would not justify the creation of a new genus; they seem also to exist in some species of other genera between the common hairs of the brush. — S. TII YAIMI.IM S, Speyer. Antennae half as long as fore wings; at three-fifths of their length gradually inflated to an elongate-ovoid knob; tip conical, blunt; last joint of palpi con- DIURNAL LEPIDOPTERA. (!5 cealed. half its length or more, by the long bristles of the middle joint, nearly perpendicular, straight, subulate, or linear, covered with scales; femora and tibiae with long hairs; tibiae of middle legs with a series of short spines; ab¬ domen densely hairy; anal angle of hind wings produced; male with stigma which is not prominent on the under side; at the base of antennae a brush of stiff hairs. P.UIIMIILA, F. Knob of antenna thick, ovoid, or elongate-ovoid; the tip suddenly bent with a much contracted, pointed little hook, nearly half as long as the kuob, and composed of a larger or smaller number of joints; sometimes of the apical joint alone, which then is placed upon the thick end of the knob as a short slender spine (Phy/ceus) ; the last joint of palpi conical or nearly linear, hardly project¬ ing beyond the bristles of the middle joint ; tibiae generally with spines, the strongest and most constant on the middle tibiae, the most feeble on the anterior ; in some species all the tibiae are without spines; body stout; abdomen as long as the head and thorax, reaching the anal angle of hind wings, or surpassing; fringes unicolored. The anterior wings of the typical species triangular, the costal margin long, nearly straight, apex slightly pointed; the hind margin oblique, very little or not at all convex; the inner margin much shorter than the costal; hind wings more or less produced on the sub-median nervure, at least in the male. In Group I, the wings a little broader, the apical angle of fore wings obtuse, the hind margin less oblique and more convex. The two species have the apical hook of antennse a little longer and stronger, especially at the base, than the typical species; tibiae with spines, but feeble on the fore and hind legs; the male without stigma. There are numerous differences in the shape of the hooks of the antennae and the spines of tibiae. In respect to the hook, Phytceus differs most, the antennse being shorter than in any other species, — only half as long as the abdomen; Metea has the apical hook forming a thick bent cone. The tibiae of Vitellius, Conspicua and Metacomet, have no spines at all. The spines of the tibiae of fore legs are often feeble and indistinct and seem to be wanting in Comma, Peckius and Osyka. Verna has only the middle tibiae spined; Hianna has the hind tibiae spined, but only on the apical third interiorly, between the two pairs of spurs. Note. — As to Pamphila; the differences in the shape of the knob of antenna, the spines of tibiae, the character of the stigma, are very remarkable, but none of them lead to a natural arrangement of the species. This is least the case with the spines and stigma (presence or absence of), as appears at once when the species without spines on the tibise ( Vitellius , Conspicua, Metacomet), or those without diseoidal stigma, are compared, and opposed to all the others. In re¬ gard to the antennse, Phylceus differs most, but is ot herwise in all characters an entirely typical Pamphila, and in shortness of antennse the otherwise widely different Huron is its nearest neighbor. The spines of the tibise on the fore legs, and sometimes on the hind legs, are so short and fine, that they are diffi¬ cult to recognize, and in danger of being pronounced wanting, though they are TRANS. AMER. ENT. SOC. VI. (9) MARCH, 1877. 66 WM. II. EDWARDS. only covered by clothing of hairs or scales. Seudder has unfortunately not given diagnoses for his genera, and it is not clear to me on what characters he has based them. Under such circumstances, it seems to me best to put together the species I am able to study in what in my opinion is the most natural manner. In some respects Massasoit differs most, and I would not have hesi¬ tated to separate it and Zabulon generically, just as Seudder has done, if Zabulon, •which could not be separated from Massasoit, had not given a transition to the typical species. — S. Many of the species included iu Pamphila were not examined by Dr. Speyer, and as he may not care to be held responsible for the arrangement of these, I give below the species examined in the sequence furnished me. It will be seen that they embrace examples in almost every sub-group, and with this aid I have disposed the remaining species.- — E. Group 1. Massasoit; Zabulon. Group 2. Sylvanus ; Comma; Sassacus ; Metea ; Leonardus ; Huron; Phylceus ; Brettus; Conspicua; JEtna—Otho ; Peckius ; Mystic; Manataaqua; Cernes ; Me¬ tacomet; Bimacula; Vitellius ; Osyka ; Hianna. A II IS IiYSC I RT ES, Speyer. Antennae like Pamphila, with slender conical apical hooks; the two basal joints of palpi covered anteriorly with a rough clothing of bristles and scaly hairs; thorax and femora roughly hairy; apical joint of palpi a little promi¬ nent; middle tibiae spined; body less stout than in Pamphila; abdomen thin, scarcely reaching the anal angle of wing; the costal margin somewhat strongly curved at base, in the middle a very little concave - hind wings not produced at the anal angle; fringes light, marked with black at the ends of the nervules. SECTION II. Tibiae rarely spined; the male generally with a costal fold of the fore wing; no discoidal stigma. PYRGUS, West. Knob of antenna elongate or ovoid, rounded at tip, straight or a little semi¬ lunar, somewhat compressed; the brush at base of antennae strong, longer than half the diameter of the eyes; palpi surpassing the front by more than the length of the eyes; the apical joint thick, bluntly conic, densely scaled; tibiae (of species examined) without spines; fringes light, marked with dark at the ends of the nervules. THAN AOS, Bd. Knob of antenna spindle-shaped, semilunarly curved, a little compressed ; brush at base of antennae strong, longer than half the diameter of the eyes, bristling; palpi surpassing the front by more than the length of the eyes, the apical joint thick, bluntly conic, a little inclined, a little surpassing the long bristles of middle joint; abdomen as long as head and thorax or a little longer; DIURNAL LEPIDOPTERA. G7 tibiae without spines, hind ones with long hairs; fringes unicolored; anterior wing of male with costal fold. LIJTTXERIA, 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: “ Zampa seems to belong to a group of species provisionally retained under Thanaos and of which I consider H. Daunus, 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 antennae, palpi, etc., and the definition of the genus is his own. — E. l'llOLIMMtA. 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. ELDAMUS, Swain. Antennae a little longer than half the costal margin of fore wings; knob very slender, 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; tibiae 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. Ilerrick-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. 6S WM. II. EDWARDS. ERRATA. Page 5, line 19, for Otto read Adolf. Page 7, for Herrick. Schaeffer, read Ilerrick-Schaeffer. Page 7, for Lefebore read Lefebvre. Page 7, for Ochsheimer read Ochsenheimer. Page 1G, No. 59, read Chione, Curtis, etc. Page 19, No. 89, transpose Scud. Psyche to Plexippus, line below. Page 24, No. 144, for Phaeton read Phaeton. Page 2G, No. 1G8, read, var. 9 Pallida, Edw. Pr. E. Soc. Ph. 2, 505. Mata , lleak. (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 Furcillata. Page 30, No. 207, for Modesta, etc., read Monima, Cram. 4, 387, F, G, 9 . Ilab. — 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 Tyndarus , Esp., var. Callias, Mead. Page 36, No. 2G9, for West.-Hen., read West.-Hew. Page 4G, No. 374, for Minehaha , read Minnehaha. Page 47, No. 377, read Antsegon. DIURNAL LEPIDOPTERA. C)9 On the Classification of Butterflies, with special reference to the position of She EQEITES or Swallow-tails. BY SAMUEL H. SC UDDER. The family groups into which butterflies should he primarily 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 transformation leads me to divide them primarily into four families, viz. : The brush-footed butterflies or Nymphales (= Nymphalidse Bates.)* The gossamer-winged butterflies or Rurales (= Erycinidae et Lycaenidae Bates.) The typical butterfliesf or Bapilionides (= Papilionidte Bates.) The skippers or Urbicol^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. t Doubtless, these skippers first separated from the common stock and never developed to a high degree, since they still remain by far the lowest of the group 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 robust body, broad head, hooked antennae, which are widely separated at base, great length of tongue, *1 have given in parenthesis the corresponding “ family” groups of Bates (Journ. Eut. I, 219 — 20), since the arrangement 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- theidte as the highest member of his Erycinidae, while I would place them as the lowest member of the Nymphales. 1 1 call these typical (as Swainson called them “true butterflies,”) because they include the commonest butterflies of the north temperate zone, the white and yellow butterflies, or the insects most familiarly known as butterflies to the world at large. % See the writings of Geoflroy, Fabricius, Leach, Dalinan, Latreille, etc. TUANS. AMER. ENT. SOC. VI. (10) JUNE, 1877. 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 papillae, bearing microscopic hairs ; their chrysalids are smooth and uniform like the pupae of moths, but in rare instances (e. g. Calpodes*), are pointed iu 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 difficult, in each case, to find a common expression. The Papiliouides 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 meso-scutellum, 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 uervure. There are many other particulars in which the sub-families of Papilionides may be distinguished from all other butterflies, but iu 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 differ, so far as I am aware, from very nearly all higher b utter flies.f The egg of Parnassius however, is an extraordinary exception, resembling that of the Lyeamids 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 central 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, (1S72). f The egg of Danaida Plexippus and, approximately, those of Brentkis, 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 families, aud 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 subordinate^ 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 similarity of all other points in the structure of the perfect form, including the 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, is “secured rigidly by the tail in an inclined position, without a girdle this mode of suspension forms a natural passage to the freely hanging Nymphales. SAMUEL IT. SCUDDER. 72 the end of the median nervure 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 Papilionides, 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 nervule, 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 Libytheaus 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 Lycaenids, 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 different 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 Eumccus Atala. Mem. Bost. Soc. Nat. Hist. II, 431 seq. (1875). f Explanation op Diagram. — A, Brush-footed Butterflies, Nymphales. B, Gos¬ samer-winged Butterflies, Rurales. C, Typical Butterflies, Papilionides. D, Skip¬ pers, TJrbicolce. 1, Satyrs, Praetores. 2, Danaids, Festivi. 3, Heliconians, Heli- conii. 4, Nymphs, Najades. 5, Snout Butterflies, Hypati. 6, Erycinids, Vesta- les. 7, Lycaenids, Plebeii. 8, Pierids, Danai. 9, Swallow-tails, Equites. 10, Par¬ nassians, Parnasii. 11, Large Skippers, Hesperides. 12, Small Skippers, Astyci. 13, Castnioides. DIURNAL LEPIDOPTERA, 73 74 SAMUEL n. 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 Lycamids 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 and the Satyrs (Oreades), by the forked tail of their caterpillars; the superficial affinity 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 iu 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 skippers; 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 honors with the Danaids. The Libytheans or snout butterflies are placed at no great distance *1 do not know that attention has ever been drawn to this feature in the caterpillars of Equites, since the time of Denis and Schifferm uller, 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.); see also his Reports on the Insects of Missouri, VIII, 169 seq., IX, 129. DIURNAL LEPIDOPTERA. 75 from the Pier ids, 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 Lyesenids iu the egg state, and to a certain extent the Erycinids in their larval state, and are therefore turned toward the G-ossamer-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, aud 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 iu 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 East 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 Burales, which we doubt, it is the nervule usually connected with both uervures by an equally obsolete vein, but be- 7 G 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. | 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, || while totally absent from their nearest allies; yet nobody * Wallace, Natural Selection Am. Ed. 135. 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. | Protrusion is probably effected by mere contraction of tbe body-walls, which fills tbe osmateria with tbe fluids of the body. % I have elsewhere maintained ihat the ventral sac on the first body-seg¬ ment of butterfly larvte is essentially homologous with the osmateria. See Fsyche 1, 16S. £ Ann. Soc. Ent. France, (4), VII, 665 seq. (1867). I! Malachius et al. See Siegel, Ueber den Aussttilpungs — Apparat von Mala- chius und rervandten Formeu 8° Hannover, 1873. DIURNAL LEPIDOPTERA. 77 on that account claims for them a high rank. In the larva of Cerura we find a much more extraordinary special development than the caterpillars of the Swallow-tails can boast; the anal prolegs 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 osrna- teria of the Swallow-tails, we shall find them of a corneous nature, resembling no other feature in butterfly larvm thau 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. Hut perhaps the most striking point of affinity be¬ tween these two groups lies in the possession, on the front tibite, 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 Ilesperides.]; 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. Hut 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 antennae of Iphiclides Ajax and Hesperia ruralis. | Cf. Speyer, Oken’s Isis, 1843, 166. I See my paper on the two principal groups of Urbicolae. Bull. Buff. Soc. Nat. Sc. I, 195—6. TRANS. AVER. ENT. SOC. VI. (11) june, 1877. 7S SAMUEL H. SCUDDER. sequeutly if the Swallow-tails are placed highest in the scale, the Fierids must go with them; nobody questions this; yet the Pierids possess not a single one of the characteristics by which, a high rank is claimed for the IS wallow-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 Linn6 and Geoffroy.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 Papilionidae 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 Lycamids 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 rniuute joint. Now when we remember that this atrophy affects only the legs borne by * Journ. Eut. I, 218—22. (1861); II, 175—77, (1864); Trans. Linn. Soc. Lond. XXIII, 515, (1862). f ?ee particularly Dalman’s admirable paper: Forsok till systematisk Upp- stallning af Sveriges Fjarilar, (Vetensk. Acad. Handl. XXXVII, 48 seq. 1816); or the abstract of it in Oken’s Isis, (1824, 416 seq.). II is classification has been pretty closely followed by his countryman Wallengreu, (Lepidopt. Scand. Rhop. 8° Mai mo, 1853). DIURNAL LEPIDOPTERA. 79 the first segment of the thorax, and that this very segment and this 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 papillm or organs of taste; at least this is true in the fifty or sixty species I have examined. Iu 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-winged 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 tritid 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 affair it is true, but still unquestionable a cocoon ; oue or two other butterflies also make a slight cocoon, 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 iu 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 brauch, 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 iu 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. 11, 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 nest higher family, the gossamer-winged butterflies, which differ 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 brush-footed butterflies , where it no longer serves any purpose, — as clear and striking an indication that the suspensi outrank the succincti, as that the pupa is higher than the larva. * Oeneis semidea, Agapetes Galathea, Nytha Circe and Eumenis Semele. AMERICAN COLEOPTERA. 81 Synopsis of the Genera and Species of the Stapliylinide tribe TACHYPOKINI of the United States. BY GEORGE H. 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 antennas 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 antennae, as in certain short-headed Bolitobius 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. II ead broadly oval in most genera, transverse in Ilypocyptini , elongate to a variable degree in Bolitobius. The sides beneath the eyes distinctly margined, Bolitobii, or without margin in the other groups. AntenN/E eleven-jointed gradually broader to apex, ten-jointed in Ilypocypti 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, Habrocerus, (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, Habrocerus , (fig. 35, d) ; subulate, Mycetoporus , Conosoma , Tachyporus and the Ilypocypti, (fig. 35, c) ; conical, Bryoporus, (fig. 35, b); filiform, Tachinus , Bolitobius , Cilea , Physetoporus 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. TRAN’S. AMER. ENT. SOC. VI. (12) June, 1877. 82 GEO. II. HORN, M. D. in Ereliomus and Ancicyptus. Margined at the sides and with dis¬ tinct epipleuroe, except in Trichopsenius. Abdomen margined in all the genera except Conosoma and Trichop¬ senius and very feebly in Anacyptus. INI esostehnum qot carinate in most genera, carinate in Cilea , Physetoporus, Erchomus, Conosoma and feebly in Anacyptus; flat or feebly concave in Hypocyptus ; the coxae rather widely distant Hypo- cypfus , (fig. 4), contiguous in Habrocerus and Trichopsenius , (fig. 2), and very narrowly separated in the other genera. Metasternum, prolonged in front separating the middle coxae, in Hypocyptus ; not prolonged between the coxae in all other genera. Posterior margin more or less sinuate, rectilinearly truncate in Ana¬ cyptus , (fig. 3). Posterior coxje, free in all the genera except Trichopsenius, (fig. 2), in which they are connate with the metasternum, form variable, usually with a broad expansion concealing the first and part of the second abdominal segments, which is parallel or narrowed externally ; articular plate small not concealing the trochanter, rarely Anacyptus 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, Trichopsenius, (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 Hypocypti. TlBI^E usually spinulose, except in Hypocyptus and Anacyptus, the anterior tibiae of Conosoma not spinulose but margined with very short closely placed setae. Tibiae at tip fimbriate with unequal spin- ules except in Conosoma, Bryoporus and some Mycetoporus in which the spinules are short, equal and closely placed. • Terminal spurs two in number except in Conosoma where there appears to be one on ly on the anterior and posterior pairs and two to the middle pair except in two species where one only occurs. Tarsi, five-jointed, in the llypocypti four-jointed. All 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 limited beneath by a ridge which starts at the sides of the buccal opening directly opposite and continuous with the lower AMERICAN COLEOPTERA. 83 edge of the mandible, running backwards in a nearly straight line under the insertion of the antennae and the eyes to the hind angles of the head, slightly curved upward posteriorly. This ridge is homo¬ logically equivalent to the margin of the thorax or more accurately the line of division between the upper and lower components of each segment of the body, and indicates that the mentum and maxillae and their appendages are inferior while the antennae, mandibles and labrum are superior. In some short-beaked Rhynchophora there is a very distinct suture, indicating the same structure, which starts from the lower border of the eyes, dips down under the head and beak so as to nearly surround the scrobe and passes forward to the side of the buccal opening. Similar faint sutures of like import have been noticed in various other families* in immature specimens, and a more extended study of these sutures about the head will enable its parts to be more correctly homologized with the other segments of the body. The marginal ridge of the head is found in this tribe in the three genera constituting the group Rolitobii. It reappears as might be inferred in the closely allied group Quedii of the adjacent tribe Staphylinini, and finally entirely disappears in the genera allied to Staphylinm. I have seen the ridge in some Alaeocharini also, but an investigation of the characters of other tribes not being pertinent to the present essay 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 has already been partially d me by Fauvel in the “ Fauna Gallo- Rhenane,” in which three groups are established, one of which I pro¬ pose to again sub-divide, based on other characters than those in the following table. The following is the method of sub-division : Posterior coxae attaining the side pieces of the metathorax; usually expanded into a plate the free edge of which conceals the first and a portion of the second segment. Antennae ten jointed, tarsi four-jointed . Hypocypti. An ten use eleven-jointed, tarsi five-jointed. Head not margined . Tachypori. Head margined at the sides . Bolitobii. Posterior coxie triangular. Antennae ten- tarsi five-jointed. Head not margined beneath . Habroceri. * Since the above was written Dr. Leconte has noticed the existence of the ridge on the underside of the head in Cicindelidae, and an examination made at once showed that while it exists in all our genera of that family it is not present in any of our Carabidte. Should this hold good with 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 Hypocypti have considerable affinity with the Alaeocharini while the Bolitobii and Ilabroceri 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 Ileterothops 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 coxae 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 Bolitobius from the others. This seems entirely illusory and above all unnatural when genera evidently very closely allied like Ilabrocerus and Trichophyus 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 coxse widely separated; mesosternum flat or slightly concave in front. Antennse moderately long, with the last three joints forming a loose club. Posterior coxse free, with a small articular plate. Abdomen feebly margined. (Fig. 4) . Hypocyptns. Middle coxse narrowly separated; mesosternum carinate in front. Antennse short, last three joints rather suddenly broader forming a rather compact club. Posterior coxse free, with a large triangular articular plate conceal¬ ing the trochanter and the base of the femur. Abdomen feebly margined. (Fig. 3) . Anacyptus. Middle coxse contiguous; mesosternum very narrow and deeply depressed be¬ tween the coxse, in front flat. Antennse? Posterior coxse 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) . Ti’icliopscniiis. 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; tibise fimbriate at tip with unequal spinules. Mesosternum not carinate. Maxillary palpi filiform . Tacliinus. 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 . Cllea. Mesosternum with strong crest; anterior tarsi % dilated. Physetoporus. Epipleurae nearly vertical, elytra prolonged at the sides beyond the body. Mesosternum strongly carinate; anterior tarsi £ simple. ..Ercliomus. Abdomen not margined; tibiae fimbriate at tip with short, equal, closely placed spinules. Maxillary palpi subulate; body finely pubescent . Conosoma. Cilea ( Leucoparyphus ) 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 . ltolif ohius. Maxillary palpi with last joint conical, acute . ISryoporus. Maxillary palpi subulate . Mycetoporus. The tibiae of Bolitobius 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 Habrocerus and Trichupftyus , 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 others 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 Tacliinus. The similarity of the hind coxae of Habrocerus 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. II YPOCYPTUS 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. collaris, 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. II. HORN, M. D. precedes. Maxillary palpi with third joint rather stoutly fusiform, fourth small, subuliform. Mesosternum slightly concave (not carinate), receiving the anterior coxae when contracted; middle coxae rather widely distant. Epipleurae narrow, horizontal, elytra not projecting downwards beyond the body. Tarsi four-jointed. Posterior coxae not connate with the metasternum, articular plate small not covering the femora. Head broad, eyes moderately prominent and coarsely granu¬ lated. Scutellum concealed. Body capable of contraction but uot to the extent of Liodes , 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 coxae 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 articulation between the coxae and the metasternum is free. Two species occur in our fauna : Legs and antennae pale testaceous . Zieg3<*ri. Legs piceous, outer joints of antennae pieeous . II. Ziegleri, Lee. — Black, moderately shining, margin of thorax nar¬ rowly pellucid, 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 sparsely 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 long icor nix that I have doubts of its being distinct. Comparison will be made hereafter. II. Crotcliii, n. sp. Resembles the preceding in most of the characters and differs as follows: Antennae 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. llind angles of thorax obtusely rounded. Elytra more distinctly punctured. Lengtli .04 inch ; 1 mm. AMERICAN COLEOrTERA. 87 Male. — As in longicornis , first joint of anterior tarsus distinctly dilated. 1 have seen but one specimen, collected by the late G. 11. Crotch in British Columbia. AYACYPTITS n. g. Antennae short, ten-jointed, first two joints stout, joints three to seven forming a rather close funicle 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. Mesosternum in front of coxte short, not concave, distinctly carinate at middle, the coxae narrowly separated. Metasternum posteriorly rectangularly trun¬ cate. Hind coxte as in Hypocyptus, but with large articular plates concealing nearly half the femur. Elytra expanded beyond the body, epipleurae broad but vertical. Abdomen very feebly margined. Tarsi four-jointed. A very remarkable genus seeming to exhibit some affinity with the Trichopterygidae notably Limrdodes. 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 Ilypocyptus from Europe and elsewhere seem to belong here. A. test ace IIS, Lee. — Rufo-testaeeous, moderately shining, sparsely pubes¬ cent, convex. Head broad, smooth, sparsely pubescent. Antennse not as long as head and thorax. Thorax twice as wide as long, convex, very sparsely punc¬ tured and pubescent, base slightly sinuate on each side, hind angles sub-acute and slfghtly prolonged. 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. Body beneath coneolorous, metasternum and articular plate of hind coxae punctured in regular quincunx. Length .03 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 differences. 88 GEO. H. HORN, M. D. TRICHOPSENIUS n. g. Antennae normally inserted, first two joints as in Hypocyptus ; joints three to ten not seen. Palpi not present. Mesosternum short in front of coxae and obtusely elevated, deeply depressed between the coxae and very narrow so that the coxae are contiguous without the cavities being confluent. Posterior coxae connate with the metasternum, the articular plates connate at middle and arising from the face of the metasteruum. 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 rnemler. 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 llypocyptus , 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. depressus. Lee. — Testaceous, very shining. Head and thorax smooth, shining, absolutely impunctured. 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 setae numbering four or five in each row. Abdomen conical, shining, sparsely setu- lose. Body beneath shining, abdomen sparsely setulose. Length .05 inch; 1.25 mm. (figs. 1 and 2). The legs of this iusect 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 TACII IX I S G rav. From their 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 from the variations in form of the last two ventral and the terminal dorsal segments of the two sexes, but before giving the table it will be necessary to enter into some explanation of the characters so that they may be properly understood. Males. — Anterior tarsi always dilated. The last ventral segment in all the species is deeply divided form¬ ing processes ( Ualnise ), of 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. AMER. ENT. SOC. VI. (13) June, 1877. 90 GEO. H. nORN, M. D. “spongy” space may occur, sometimes as a very narrow border along the middle of the hind margin and often as a hoof-shaped space usually of small extent. The other abdominal segments present nothing of moment except in jimbriatus and picipes , in which the first two segments at middle are elevated in a carin'a. 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. Females. — 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 lurulus and nigricornis. 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 spiuules, 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 cir cum cine tus. 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, mimus, debilis. In angustatus 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 setm shorter and more slender. The most advanced species in the slenderness of these processes is probably Jimbriatus. From AMERICAN COLEOPTERA. 91 their number the last ventral segment is usually said to be “six- spinous.” Tbe last dorsal however undergoes the most important changes, all however traceable to tbe development of a primary simpler form. The simplest type of structure seems to be that of maculicollis , 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, in 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 angustatus 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 Jimbriatus. The next change is in memnonius 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 canadensis and tachyporoides the division being at times ( instabilis ), so minute that the middle process is sleuder 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 Crotchii. The three processes now ( instabilis ), approximate and finally ( nigricornis , lurid us , circumcinctus ) unite, being separated at tip by a slight notch and a groove on the upper surface, the middle lobe is prominent and acute in nigricornis and luridus , or broader and emarginate at tip in circumcinctus. These sexual modifications of Tachinus 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. HORN, M. D. The following will readily distinguish the males. Sixth* ventral segment pectinate on its hinrl margin. With spongy space on the lower face of the segment at middle. Spongy space divided longitudinally, (fig. 5) . inaculicollis. Spongy space entire, large. Covering the entire impression of the segment, (fig. 6) . semirufus. On the centre of the impression only, (fig. 7) . iiieillilOlliuS. Without spongy space, merely a few scattered granular tubercles. Sixth ventral broadly and feebly emarginate, the spinules forming a con¬ tinuous series, (fig. 8) . 1 a oil. vp oroides. Sixth ventral narrowly and feebly emarginate, spinules arranged in a group on each side of the emargination. Elytra smooth, last dorsal of male normal, abdomen shining, very sparsely punctured, segments not impressed, (fig. 9) . ugilis. Elytra distinctly punctured. Last dorsal of male normal, ventral segments not impressed, elytra less coarsely punctured, (fig. 10) . illigiistutus. Last dorsal of male tridentate, ventral segments four, five, six, dis¬ tinctly itnpressed, elytra coarsely punctured, (fig. 11) . debilis. Sixth ventral very deeply emarginate, the angles prolonged. The spinules bordering the entire emargination, (fig. 12) reps* Ildus. The spinules divided into three groups, (fig. 13) . scrutator. The spinules at the tips of the processes only. Processes of s:xth ventral acute. Elytra smooth. Abdomen sub-opaque, finely and rather densely punetulate, (fig. 14) . mi suns. Processes of sixth ventral obtuse. Elytra coarsely punctured. Ab¬ domen shining, sparsely punetulate, (fig. 15) . addeudus. Sixth ventral segment not pectinate posteriorly. Form parallel, abdomen not narrowed except at tip, (fig. 16)...paralleIuS, Abdomen gradually narrowed from base to tip. Sixth ventral with spongy space on the face of the segment. Abdomen rather coarsely punctured. Elytra piceous or rufo-piceous, distinctly punetulate, (fig. 17). liigricornis. Elytra luteous, scarcely visibly punetulate . luridus. Abdomen very obsoletely punctured . canadensis. Sixth ventral without spongy space on face of segment. First two ventral segments strongly carinate at middle. Lacinise of last ventral long and arcuate; last dorsal acutely toothed, (fig. 18) . fimbriatus. Laciniae shorter, straight; last dorsal with short teeth, (fig. 1 ). picipes. First two ventral segments not or feebly carinate at middle. Sixth ventral (sometimes fifth also), concave, emarginate posteriorly. Posterior margin of sixth ventral emarginate at middle and at sides, (fig. 20) . Schwarzi. * In using the above table with European works at hand, it must be re¬ membered that Erichson, Redtenbacher, Maklin and others, consider the last ventral as the sixth. There are seven very distinct ventral segments, the first in great part concealed. The sixth of the above table is the equivalent of the fifth of those authors. AMERICAN COLEOPTER A. 93 Posterior margin emarginate at middle only. Posterior margin plain, without spongy border at middle. Thorax entirely testaceous . limbutiis. Thorax pieeous with narrow testaceous border. Elytra scarcely visibly punctulate; laciniae broad. funiipcnnis. Elytra distinctly punctulate; laciniae slender . IVigiilus. Posterior margin of sixth ventral with a narrow spongy border at middle. Elytra as wide or wider than long; color pieeous, thorax with entire margin paler . . Crotcliii. Elytra lon rer than wide ; color eastaneous, thorax entirely black (except when immature) . iiistabilis. Sixth ventral not concave nor emarginate. Last dorsal four-dentate; elytra coarsely and irregularly punctured. cirennicinctus. Last dorsal three-dentate; elytra coarsely and evenly punctured. nitiduloides. The following table applies entirely to the females of each species and is intended to be merely supplementary to the previous table, showing how in many cases the females differ 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. 17, c) ; last dorsal with the three lobes connate, (fig. 17, b) . luriilus, nigricornis, eircumciiictus. Last ventral divided into six processes, usually long and slender. Last dorsal deeply bilobed, (fig. 5, d) . inucul icol 1 is. Last dorsal trilobed, lobes usually slender, the middle one variable, either entire, emarginate. bifid or trifid. Middle lobe as long as the lateral, its form, slender, with a shorter process on each side, (fig. 24) . Crofeliii. slender, tip either entire or very feebly notched, (fig. 25 and II, d). iiistabilis, dobilis. broader, tip notched one-third toward base, (fig. 21) . ea uailousis, agili.s, I t'igirius. nitiriuloiries. deeply divided forming two slender processes, (fig. 8, b)...parilllelus, tacliyporoiries. piripos. f iiinipcimis, repandus. broad, tip broadly triangularly notched, (fig. 20, b) . Sehwarzi. Middle lobe shorter than the lateral, its form, broadly oval, rarely with a very feeble notch at tip, (fig. 22)...limbat us. broad, triangularly notched at tip, (fig. 18, c) . limbriaf bis. more slender, feebly notched, (fig. 7, b) . mem idoii i us. deeply divided, forming slender processes, (fig.6, b) . aiigustal us, semi rui ns. in ini us. addeiuliis. T. iiiaoulicol 1 is, Maklin. — Pieeous, shining, entire thoracic margin and sides of elytra paler. Head black, antenme pieeous, 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. H. 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 lacinise; sixth ventral emarginate at middle the outline resembling a brace — 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-spinous, the two central processes broader than the lateral and fimbriate at tip. Last dorsal deeply divided forming two elongate triangular processes, (fig. 5, c, d). The sexual characters abundantly distinguish this species, super¬ ficially it resembles a number of others. Occurs in Alaska, (M'aklin); Vancouver, (Crotch). T. SCMiirufilS. n. sp. — Rufous, 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 mm. Male. — Last ventral deeply cleft, lacinise 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. mem nonius, Grav. — Uniformly pieeous, moderately shining. Elytra slightly longer than wide, sculpture as in maculicollis, punctuation of elytra somewhat more evident. Underside paler than above, legs testaceous. Varies in color to piceo-testaceous from immaturity. Length .22 — .32 inch; 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, (fig. 7, a). Female. — Last ventral as in maculicollis. Last dorsal similar to semirufus but with the middle lobe less deeply cleft but broader at base and the lateral lobes more slender, (fig. 7, b). Iu some of the Canadian and all of the British Columbia speci¬ mens, the middle lobe of the last dorsal segment 9 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. tacliyporoides, n. sp — Pieeous, shining. Antennae half the length of body, slender, concolorous. Thorax smooth, shining. Elytra slightly longer than wide, very indistinctly alutaceous, shining. Abdomen shining, with very AMERICAN COLEOPTERA. 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 spiniform 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 that of Tachyporus, being more robust in body and more attenuated posteriorly than any species of Tachinus in our fauna, this together with the longer antennae 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 lied Iliver. 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 emarginate, 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 tachyporoides, (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. 9, b). This species resembles tachyporoides so closely that the sexual differ¬ ences of the males alone separate them. The females do not differ except slightly in color. From aug us talus besides the sexual differ¬ ences. the form of agilis is much more robust and convex. Occurs in California, Crystal Springs. T. angustatlis, n. sp. — Form slender, piceous black, shining. Antennas slender, entirely piceous. Thorax shining, with a few very minute punctures sparsely placed. Elytra slightly longer than wide, shining, obsoletely punc¬ 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 marulicollis. 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 specimeus, two $ , one 9 Colorado, one $ California. 9G GEO. H. EORN, 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. flebilis, n. sp. — Pitchy black, sides of thorax narrowly paler. Head and thorax smooth, shining. Elytra as wide as long, moderately, densely and coarsely punctured, not alutaceous. Abdomen sparsely punctured, finely alutaceous, beneath more distinctly punctured. Legs piceous, tarsi testaceous. Antennre piceous, apical joint paler. Length .10 inch; 2.5 min. Male,. — Last ventral deeply, triangularly notched, forming two plates as in angustatus, sixth ventral broadly emarginate, the border narrowly spongy at middle and at each end spinulose, face concave, the depression extending also on the next two segments. Last dorsal tridentate, the middle tooth broad and truncate at tip, pellucid along the middle, (fig. 11, a, b). Female. — Last ventral similar to that of mimus with the middle lobe some¬ what broader. Last dorsal with three slender, equal processes, the middle truncate at tip, (fig. 11, c, d). Three specimens collected by Mr. G. 11. Crotch, at Crystal Springs, California, and at Vancouver. This species resembles nitiduloides in form and sculpture, but the £ of the latter has scarcely any emargi nation of the sixth ventral and no depression, while the females differ still more in their sexual characters. In the specimen % before me the spinules of the sixth ventral have been accidentally lost, there remain however the deep perforations in which they were inserted. A specimen in Mr. Ulke’s cabinet is perfect. The last dorsal if seen by transmitted light ap¬ pears quadridentate owing to the middle of the central tooth being thin and translucent. T. rcpaudus, n. sp. — Piceous shining, sides and base of thorax paler. Head and thorax very finely alutaceous, scarcely visibly punctulate. Elytra as broad as long, finely alutaceous, obsoletely finely punctulate. Abdomen sparsely punctulate at tbe sides of the penultimate dorsal, the segments all longitudinally wrinkled at middle, not alutaceous, beneath as above. Antennse long, slender, piceous, two basal joints paler. Legs testaceous. Length .ISinch; 4.5 mm. Male. — Last ventral as in tachypovoid.es, sixth very deeply emarginate, and on each side sinuate, the emargination entirely filled with rather long stout spinules. Last dorsal as in tachyporoides, (fig. 12, a). Female. — The last dorsal is deeply divided into four slender processes, (fig. 12, b). This species greatly resembles scrutator but is darker in color aud with different sexual characters The spinules in the emargination of the sixth ventral are comparatively long and stout; there is also a depression of the face of the segment close to the margin but no evidence of granules* Three £ , one , I^ouisiana, Ulke; Michigan aud Trenton Falls, New York, Dr. Schwarz. AMERICAN COLEOPTERA. 97 T. scrutator. Ilorn. — Pale piceo-testaeeous, shining. Head black, very finely alutaceous. Thorax testaceous, smooth, shining, 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. Antennae piceous, two basal joints paler. Length .14 inch; 3.5 mm. Male. — Last ventral as in tachi/poroides, sixth ventral deeply emarginate at middle, on each side sinuate, spinules arranged in three groups, one at each end of the emargination, the other at its bottom. Last dorsal as in tachy- poroides, (fig. 13). Female. — Unknown. The color as above described accords with that given by Melsheimer, ( T. discoideus || Mels. Proc. Acad. 1844. p. 32), but is probably sub¬ ject to variation and 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 identification, 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. liiimtis. 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 angustalus, sixth ven¬ tral very deeply emarginate, prolonged on each side of the emargination, and laterally 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 deejdy bifurcate, shorter than the outer lobes, the latter broader, as in semirufus, (fig. 14, b). Two specimens from Oregon have been given me by Mr. If. 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 sparsely punctulate. 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 impressed, with TRANS. AJIEK. ENT. S0C. VI. (14) June, 1877. 98 GEO. n. HORN, M. D. numerous granules. 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 in the table will at once enable this species to be known. Two specimens kindly sent me by Dr. E. A. Schwarz, collected at Bachewauung Bay, Lake Superior. T. parallelus. n. sp. — Form parallel, color piceous, 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 piceous, 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 dorsai 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, (6g. 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. nigricornis, Mann. — Black, shining, elytra dark-brown, legs piceo- testaceous. Head and thorax black, minutely and sparsely punctulate and obsoletely alutaceous. Elytra slightly 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. Antennae piceous. 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 dorsai as in maculicollis, (fig. 17, a). Female. — Last ventral entire middle lobe fimbriate, lateral processes indicated by small teeth only. Last dorsal entire, trilobed, lobes united, the middle longer and acute, (fig. 17, b, c). Occurs from Alaska to Vancouver. T. Inridtis, Erichson. — Piceous, shining, elytra pale 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 punctu¬ late. Abdomen more finely punctured than nigricornis, but beneath similarly. Length .24 inch; 6 mm. AMERICAN COLEOPTERA. 99 Male. — As in nigricornis, with the granular space on the face of the sixth segment more irregular. Female. — As in nigricornis. 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. — Piceous, thorax at sides, elytra at base broadly, sides and apex narrowly, testaceous. Legs testaceous. Antennae ferruginous, four basal joints paler. Head black, finely alutaceous, sparsely punetulate. Tborax very finely alutaceous. Elytra distinctly longer than wide, finely alu¬ taceous. sparsely punetulate. Abdomen similarly sculptured, beneath smoother, scarcely punetulate. 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. limhriilt us. Grav. — Piceous, elytra pale castaneous, tip narrowly pice¬ ous. Antennse black, four basal and the last joint pale. Head and thorax black, very minutely punetulate and very finely alutaceous. Elytra as wide as long, minutely alutaceous, rather coarsely sub-striato-punetate. Abdomen shining, sparsely punetulate, beneath rather more coarsely punetulate. Legs piceous or piceo-rufous. Length .28 — .36 inch ; 7 — 9 mm. Male. — Last ventral deeply divided forming long, slender, curved lacinite; sixth broadly emarginate at middle, the centre of the emargination narrowly bordered with granules, face concave. Metasternum frequently elevated in a crest posteriorly. Inner angle 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. Antennse with the lour basal and the apical joint paler. Head and thorax very minutely punetulate 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. Length .28 — .32 inch; 7 — 8 mm. Mate. — As in Jimbriatus with the lacinise nearly straight, (fig. 19, a). Female. — Last ventral as in Jimbriatus j last dorsal as in parallelus, (fig. 19, b). 100 GEO. IT. IIORX, M. P. As in the preceding species the first two ventral segments are carinate at middle. Occurs from Canada to Virginia. T. Scbwarzi, n. sp. — Pieeous black, shining. Antennae as in picipes. Head and thorax extremely finely alutaceous. 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; 8 mm. Male. — As in picipes, (fig. 20, a). Female. — Last vSntral as in fimbriatus, last dorsal with the middle lobe broader than the lateral, as long, tip triangularly notched, (fig. 20, b). This species is oue of the discoveries of Dr. E. A. Schwarz, of Detroit. It has no carination of the first two ventral segments. Occurs near Detroit, Michigan. T. limbatus, Mels. — Pale testaceous, very shining, elytra pieeous 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 maculicollis. Female. — Last ventral as in maculicollis. 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 iu the Middle States. T. fii ml pen li as. Say. — Pieeous, shining, sides of thorax, basal and apical margins of elytra and apical margins of abdominal segments testaceous. An¬ tennae pieeous, 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, pieeous, 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 maculicollis, last dorsal as in parallelus. There is no difficulty in distinguishing this species excepting pos¬ sibly from friyidus, from this the general arrangement of color must be the guide, together with a more distinct punctuation of the latter. From Crotcliii and instabilis 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. Priiridus. Erichs. — Piceous black, shining, margin of thorax, base and sides of elytra and four basal joints of autennee rufo-testaceous. Head and thorax minutely punctulate, 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 maculicollis. 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 canadensis 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 luridus in collections. T. Crotchii, n. sp. — This species resembles frigidus so closely that no further description is necessary, it is however usually somewhat larger. Length .24 — .26 inch; 6 — 6.5 mm. Male. — As in frigidus. Female. — Last ventral as in frigidus, 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. R. Crotch in Vancouver. T. instate a lis. Maklin. — Pitchy black, moderately shining, elytra dark castaneous. Antennse 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 piceo-testaceous. Length .22 — .24 inch; 5.5 — 6 mm. Male. — Similar to nigricornis, without granular space on the face of segment but a narrow border at middle of emargination. Female. — Last ventral as in memnonius. Last dorsal with 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 frigidus mixed with fumipennis as the former was unknown to Mr. A. at the time 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 of frigidus. 102 GEO. II. HORN, M. D. I am inclined to place with this species apterus, Makl., 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. circumclnctus, Makl. — Piceous black, shining, elytra castaneous or dark luteous, apical margin darker. Head and thorax black, very minutely punctulate and finely alutaceous. Antennae piceous. Elytra as long as wide, rather coarsely punctured, shining, not visibly alutaceous. Abdomen rather sparsely, coarsely punctulate, distinctly alutaceous. Legs piceo-testaceous. Length .16 — .20 inch; 4 — 5 mm. Male. — Last ventral similar to nigricornis, 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 approximated and connate, the middle emarginate at tip, (fig. 26, a, b). Occurs in Canada, Michigan, Kansas, Vancouver, Alaska. T. niti triangularly notched . ltovis. E. iiiihiitis, (Fauvel mss.) n. sp. — Pitchy black, shining. Antennse rufo- pieeous, 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 processes, 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. puncf ipcmiis, 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 ventriculus 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. ventriculus, 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 me, 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. E. laevis, 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. CONOSONA Kraatz. This genus is especially distinguished from all others of the group by the immarginate abdomen, the other characters being those of Tachjporus. 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 mesosternum has already been mentioned by Erichson 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 elytron a marginal row of setigerous punctures. Those in which the elytra are red at base have long rather stout setae 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 oue 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 spinules which in one species ascend a short distance along the inner margin of the tibiae 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 in those species with but oue middle tibial spur there AMERICAN COLEOPTERA. 109 arc three 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, bind angles rufo-testaceous . littorcuin. Thorax testaceous, apical third or half piceous . litioxii. Mesosternum distinctly carinate. Body robust. Middle tibiae with one terminal spur only. Elytra unicolored or feebly paler along the base; spinules of the tip of middle tibiae ascending, (fig. 33) . crassmn. Elytra with well-defined red spot on each; spinules of middle tibiae termi¬ nal only . bisigmituin. Middle tibiae with two distinct terminal spurs, (fig. 34). Elytra without setigerous punctures. Abdominal segments without long setae at the sides. Elytra densely punctulate. Species of moderate size. Elytra broader than long. Color of body pale castaneous. Hind angles of thorax subacute . . castuiictiin. Elytra as long as wide. Color piceous. Hind angles obtuse. pubescens. Elytra very sparsely punctulate. Species very small . parvulnm. Abdominal segments with long setae at the sides, arising from rather large deep punctures. Thorax finely punctulate merely . basale. Thorax finely punctulate and alutaceous . opiciilil. Elytra with a row of setigerous punctures near the margin. Abdomen setose at the sides . script mil. 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. littoreum, Linn. — Subdepressed, brownish, subopaque, clothed with fine sericeous pubescence. Head piceous, finely and sparsely punctulate. Antennae pale brownish, four basal and two apical joints paler. Thorax brownish, hind angles broadly rufo-testaceous, broader than the 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 punctulate and with brown silken pubescence. Abdomen piceous, hind margins of each segment paler, surface less densely punctured and pubescent than the elytra. Body beneath piceous, legs and coxae testaceous. Length .14 — .16 inch ; 3.5 — 4 mm. Massachusetts aud Cauada. 110 GEO. II. nORN. M. D. C. Knoxii, Lee. — Resembles littoreum in form, differs especially in colora¬ tion as follows: Thorax testaceous, apical third or even half piceous. Elytra testaceous, lateral margin narrowly, apical broadly piceous. Abdomen rufo- testaceous, last three segments black. Body beneath piceous, abdomen beneath as above. Legs and coxae testaceous. Length .12 — .14 inch; 3 — 3.5 mm. The elytral margin at base has a very narrow piceous bonier which rapidly becomes wider passing in a curved line to near the middle of the suture. It is barely possible that this may be merely a variety of the preceding. In both species there are two middle tibial spurs, one femoral seta, and the last three segments of the abdomen are alone setigerous. Occurs in Western Pennsylvania and Michigan. C. crassum, Grav. — Pitchy black, robust, surface finely clothed with pale brownish pubescence. Antenme as long as the head and thorax, brownish testaceous, apical joint paler. Head piceous, mouth paler, very sparsely punctu- late. Thorax convex, sparsely pubescent and very finely and sparsely punctu- late, sides regularly arcuate, base subsinuate on each side, hind angles broadly rounded. Elytra as long as wide, slightly narrower at apex, base indistinctly paler, surface densely and finely punctulate and sparsely pubescent. Abdomen setigerous at the sides, sparsely punctured but more coarsely than the elytra, sparsely pubescent, beneath as above. Body beneath piceo-rufous, sparsely pubescent. Legs paler. Length .14 — .22 inch; 3. 5 — 5.5 mm. This species is the largest and most robust in form. When mature it is entirely unicolored above, when less mature the bases of thorax and elytra are more or less reddish. In both sexes of this species the middle and hind femora have three unequal bristles near the tip and at the tip of the middle tibia the spinules ascend along the inner edge. There is also but one spur, (fig. 33). This species occurs from Canada to the Gulf States. < bisignatuni, n. sp. — Black, shining, elytra with a well-defined sub- basal red spot on each. Legs rufous. Antennae black, apical and three basal Joints testaceous. Abdomen black, posterior margins of segments paler. Length .14 — .18 inch; 3.5 — 4.5 mm. The form is precisely that of crassum. the sculpture of the elytra however a little finer and more dense. The abdominal segments have bristles at the sides. The middle femora have three unequal bristles and the posterior, one near the tip. The middle tibiae have the tips fimbriate with spinules which do not ascend as in crassum, and there appears to be but one terminal spur. The two specimens before me are in very fair condition but it is barely possible that there are nor¬ mally two middle tibial spurs, in which case the species should be placed near basale from which the larger size and well-defined sub- basal red spot will distinguish it. Two specimens, Santa llarbara and Wilmington, Cal., G. R. Crotch. AMERICAN COLEOPTERA. Ill C. castaneum. n. sp. — Castaneous varying to brownish, moderately shin¬ ing, form rather elongate, sparsely clothed with silken pubescence. Antennae testaceous, attaining the hind angle of thorax. Head and thorax very minutely punetulate. Thorax not wider than the elytra, sides moderately arcuate and regularly narrowed from base to apex, base slightly sinuate, hind angles rect¬ angular. Elytra slightly wider than long and narrower at apex, surface moder¬ ately densely and minutely punetulate, punctures arranged in distinct trans¬ verse strigae. Abdomen not setose at the sides except the last segment, surface more densely punetulate than the elytra. Body beneath colored as above, legs somewhat paler. Length .16 inch; 4 mm. Two specimens were collected by Mr. G. R. Crotch near Sauta Barbara, of darker color than those collected by me at Tejon. By a close examination of the characters [ cannot find any distinction. There is also a specimen collected by Dr. Zimmerman in South Caro¬ lina, uot differing except in its smaller size. Not rare at Fort Tejon, California, in fungi. C. pubescent Payk. — Dark brown, basal region of elytra sometimes slightly paler. Legs rufo-testaceous. Thorax truncate at base, hind angles obtusely rounded, slightly broader than the elytra. Elytra slightly longer than wide. Length .16 inch ; 4 mm. This species agrees with the preceding in all its characters except those mentioned above. It has been distributed under the names adepts, Zimm., and angustulus, Fauvel, these representing respectively the retracted and elongate forms. New York to Louisiana. C. parvnlum, n. sp. — Rufo-piceous, moderately shining, subdepressed. Head and thorax very sparsely and finely punctured, sparsely pubescent. Thorax slightly wider than the thorax, sides regularly arcuate, base feebly sinuate cn each side, hind angles obtusely rectangular. Elytra distinctly wider than long, surface very sparsely punctured and pubescent. Abdomen very sparsely punctured, last three segments with bristles. Body beneath paler than above, legs testaceous. Length .08 inch; 2 mm. This species was thought to be pedicularium , Grav., but the de¬ scription by Erichson does not seem to apply. Two specimens, North Carolina, easily known by their very small size and sparsely punctured elytra. C. basale, Erich. — Pitchy black, shining, finely pubescent, each elytron with a median basal red spot. Head black, very sparsely punetulate. Thorax slightly broader than the elytra, sides regularly arcuate and narrower to apex, base feebly sinuate on each side, angles obtusely rectangular, surface sparsely and finely punetulate, intervals smooth. Elytra slightly broader at base than long, surface moderately densely and finely punetulate, a red spot on each nearer the suture than the margin. Abdomen piceous black, apical margins of segments paler, surface finely punetulate, each segment with a seta from the upper surface at the sides and two at the margin. Body beneath piceous. 112 GEO. H. HORN, M. D. abdomen more distinctly punctured, legs and coxre rufous. Length .12 — .14 inch ; 3 — 3.5 mm. Occurs over the entire region east of the Rocky Mountains Varies in color from immaturity to rufous or testaceous. C. opicum. Say. — Resembles the preceding in form and color and differs as follows: Thorax minutely transversely strigose or alutaceous between the punctures, elytra with entire basal band red. Length .12 — .14 inch; 3 — 3.5 mm. Occurs more especially in the Gulf States. Whether the differences indicated above will be found to be con¬ stant remains for future determination. The color of the base of the elytra can hardly have much weight and I .have separated our speci¬ mens entirely by the strigosity of the thorax. C. scriptum, n. sp. — Pale rufo-testaceous, sparsely pubescent, thorax with a spot on each side of middle at base, elytra at tip andmliscal spot piceous. Antennreas long as thorax, rufo-testaceous. Head and thorax shining, scarcely visibly punctulate. Thorax slightly wider than the elytra, sides regularly arcuate and narrower in front, base truncate, hind angles obtuse. Elytra as long as wide, sides near apex, apex and discal spot behind the middle piceous, surface sparsely punctulate, a row of setigerous punctures near the lateral margin. Abdomen sparsely punctulate, setigerous at the sides, darker in color than the elytra. Body beneath pale rufo-testaceous. Length .08 — .10 inch ; 2—2.5 mm. This species is easily known by the setae, usually six in number, at the sides of the elytra. The color may become piceo-testaceous and the discal spot extend so as to join the apical margin. Occurs abundantly from Michigan to Louisiana. The sexual characters are very nearly uniform in all the species and are as follows : Male. — Anterior tarsi more or less dilated. Sixth ventral segment triangularly emarginate, seventh elongate oval, entire. Last dorsal entire. Female. — Anterior tarsi simple. Last ventral elongate oval, fimbriate at middle of posterior margin. Last dorsal quadrifid. 1S0I.1T02SIUS Steph. The correct arrangement of the species of this genus presents many difficulties, owing to the relative importance to be assigned to the differ¬ ent characters, the more prominent of which have already appeared in the books. Certain departures from the normal form of the maxillary palpi occur in two species, in which these organs become considerably shortened, the joints more robust and often pubescent, especially the third joint. In these also the last joint loses the strictly slender form and becomes decidedly conical as in Bryoporus. Here therefore is the point where the two genera approach and if the latter genus is to AMERICAN COLEOrTERA. 113 be suppressed at all it must be as a section of the present and not of Mycetoporus as suggested by F auvel. Id all our species the middle and posterior tibiae are fimbriate at tip with unequal and rather coarse spinules. In Bryoporus the spinules are short, equal and closely placed, while in Mycetoporus the species are variable, some have unequal and others equal spinules. The femora have usually three apical bristles such as have been noticed in Conosoma , etc. The thorax has the usual marginal punctures but none on the disc. The elytra have three rows of punctures, a sutural, a marginal, and a diseal series, as in Mycetoporus , while Bryoporus has many rows of rather deeply impressed punctures. The head varies very greatly in length being shortest in those at the beginning of the table, the species being arranged dichotomously, so that, while other characters are kept in view, the head gradually increases in length. In the short headed species the antennae are more flattened, the joints more closely placed and from the fifth to the tenth transverse and twice as broad as long. These appear to be allied to those for which the genus Megacronus was proposed. Those species which have rufo-testaceous elytra with black spots seem rather indefinite and will require to be separated by a careful examination of the sexual characters, those used in the table being rather for convenience. Nothing however is less to be depended on than the color of the elytra and it is only to be considered when other characters can be found to substantiate it. The sexual characters are extremely feeble and will be mentioned with the species in which they have been observed. The following is the proposed arrangement of the species. Maxillary palpi elongate, slender, glabrous . 1. Maxillary palpi short, stout, third joint sometimes pubescent . 4. 1. — Head oval or moderately elongate, never widest at base . 2. Head very elongate, twice (or even more) longer than wide and widest at base, (fig. 32) . 7. 2. — Abdomen variable but always unicolorous . 3. Abdomen bicolored, red, apical two joints black . . 6. 3. — Antennae vvith joints 5 — 10 decidedly transvere, Megacronus, (fig. 31, a). Elytra unicolored, black or piceous . niger. Elytra black, apex narrowly, and a broad discal vitta, testaceous. axillaris. Antennae with joints 5 — 10 distinctly longer than wide. Elytra maculate. ..5. 4. — Antennae with joints 5 — 10 transverse. Elytra bicolored, black, basal half red . last ventral 9 • Fig. 18. — T. jimbriatus, Grav., a, last two ventrals 'J, ; 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, Makl., last dorsal 9* Fig. 26. — T. circumcinctus, Makl., a, last ventral 9 > b> last dorsal 9 • Fig. 27. — Cilea silphoides, (Linn.), a, last two ventrals ^ ; b, last dorsal % ; c, last ventral 9- Fig. 28. — Erchomus punc.tipennis, (Lee.), last two ventrals % . Fig. 29. — E. ventriculus, (Say), last two ventrals £ . Fig. 30. — Habrocerus 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. queesitor. Fig. 33. — Middle femur and tibia of Conosoma crassum. Fig. 34. — Middle femur and tibia of C. castaneum and others. Fig. 35. — Maxillary palpi; a, Bolitobius, (filiform); b, Bryoporus, (conical); c, Mycetoporus, (subulate) ; d, Habrocerus, (last joint long, slender and acute). AMERICAN HYMENOPTERA. 129 Xo(os on the species belonging to the subfamily ICHNEUMON IDES, found in America north of Mexico. BY E. T. CRESSON. In the first volume of these Transactions (p. 289), I began the publication of a list of the Ichneumonidae 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, 1878, 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 lchncumonolouill. Thorax black, meso- and sometimes metathorax more or less ferruginous. Posterior tibise ferruginous, black at tips. Apex of abdomen without pale spot . 160. instahilis. Apex of abdomen with pale spot. Posterior coxse black; gastrocceli deep, fovei form . 169. iiiaius. Posterior coxse ferruginous; gastrocceli very transverse . 163. velox. Posterior tibise with pale annulus. Length of body .40 inch . 173. signatipes. Length of body .25 — .30 inch . 174. annulipes. Posterior legs, except sometimes the coxse, entirely ferruginous. Antennse with pale annulus. Scutellum yellow; abdomen with segments one to four more or less black at base; antennse and legs robust . 177. seininiger. Scutellum ferruginous; abdomen entirely ferruginous; antennae and legs slender . 178. flcbilis. Antennae pale ferruginous, black at tips, subrobust; abdomen entirely ferruginous . 180. liicmalus. Antennae, except first joint, entirely black, slender; spot on pleura and abdomen entirely, ferruginous . 179. scquax. Thorax ferruginous, mesothorax only black . 162. conlirmittus. Thorax entirely ferruginous, or with black sutures or stains. Abdomen with one or more segments banded or margined with black. Antennae long, slender, basal joints of flagellum elongate, cylindrical. Third joint double the length of fourth; segments three to five of abdo¬ men narrowly margined at apex with black. ..181. siibiiiivus. Third joint slightly longer than fourth; broad band at base of segment three of abdomen, and spot on disc of two, black... 182. ccstus. AMERICAN II YMENOrTERA. 135 Antennae short, with thick-set joints. Posterior femora and tibiae black at tips; antennae with white annulus; scutellum yellowish . 183. vicimis. Posterior legs entirely ferruginous; antennae without pale annulus; scutellum ferruginous . 184. brevipciinis. Abdomen with large black mark on disc of segments two and three, apical segment with pale spot . 188. riisparilis. Abdomen entirely ferruginous. Metathorax with two prominent, flattened tubercles . 201. rutilllS. Metathorax without prominent tubercles. Postpetiole densely and finely scabrous; antennae robust, with short, thick-set joints . 189. russatus. Postpetiole distinctly aciculate . . 160. instabilis, var. Postpetiole either smooth, or indistinctly aciculated. Antennae entirely ferruginous. Size medium; antennal joints elongate . 190. semissus. Size small; antennal joints short . 200. petmlcus. Antennae with pale annulus. Second segment of abdomen impunctured . 193. proxiimis. Second segment closely and finely punctured ; posterior tibiae pale at base, fuscous at tip ; thorax varied with dusky. ..194. nailUM. Second segment of abdomen coarsely punctured; body and legs entirely ferruginous . 195. rubicund!!*. Postpetiole distinctly punctured. Clypeus very short and broad, its anterior margin broadly arcuated, exposing most of the mentum . 196. rcsiduiiM. Clypeus of usual proportions, its anterior margin truncate, covering the mentum . 198. soror. MALES. In the following table, which will serve to distinguish the males, those of the species belonging to Amhlyteles (of the division amhly- pygi) are included, it being difficult and often impossible to separate them from the males of Ichneumon , the ventral fold sometimes varying considerably in length in specimens of the same species. Abdomen black or blue, without pale bands or spots, except sometimes on apex of first or last segments . .’ . Section I. Abdomen black spotted or banded with white beyond first segment and before apex . Section II. Abdomen black and yellow, sometimes varied with ferruginous . Section III. Abdomen fulvo-ferruginous, apical margins of segments 1 — 4, and terminal segment pale yellow . Section IV. Abdomen bright saffron-yellow, the three or four apical segments black; legs entirely yellow . Section V. Abdomen more or less ferruginous or fulvous, apex always black . Section VI. Abdomen ferruginous or fulvous, the first and base or apex of two or three following segments more or less black, apex never black . Section VII. 13 G E. T. CRESSON. Section I. — Abdomen black or blue, without -pale bands or spots, except sometimes on apex of first or last segments. Posterior legs entirely black. Antennae orange-yellow, black at extreme base and apex... 12. flavicornis. Antennae black, with pale annulus. Apex of abdomen immaculate. Wings dark fuliginous. Postpetiole entirely black. Face entirely black ; annulus on antennae broad . 8. galenas. Face black; white laterally; annulus on antennae narrow. Scutellum black. Antennae short, pale annulus entire . 9. torvillUS. Antennae long, pale annulus interrupted beneath. ..10. citiimis. Scutellum white; sides of face broadly white . 28. fiistricus. Postpetiole more or less white at tip; face white, sometimes black in lateral depressions . 56. uuilasciatorius. Wings hyaline or subhyaline. Small; face entirely black or with pale orbital lines . 21. acerbus. Larger; face entirely white or spotted with white. ..14. scriptilrons. Apex of abdomen with one or more pale spots. Postpetiole entirely black. Posterior trochanters black . 40. brevicinctor. Posterior trochanters white . 41. extrematatis. Postpetiole narrowly margined at apex with white. Metathorax immaculate . 32. citatus. Metathorax with round white spot on each flank . 33. merus. Antennae entirely black or blue. Scutellum entirely black or blue. Body deep black, rather shining; wings hyaline . 17. odiosus. Body blue-black, opaque; wings dusky . Ambly. montanus. Scutellum white. Face white with black central stripe. All the coxae black . 35. neutralis. Four anterior coxae white . . 30. pepticus. Face entirely white . 1 . 31. pervagus. Posterior legs black, their tibiae more or less white. Antenna black, with pale annulus. Apex of abdomen immaculate. Postpetiole entirely black. Posterior tibiae white, black at tips; four anterior coxae and trochanters white . 48. vagans. Posterior tibiae with an entire white annulus at base. Posterior trochanters white, tibiae white at base; scutellum white laterally . 25. iiavus. Posterior trochanters black, ti b i ce black at extreme base; scutellum entirely white . 47. promptus. Posterior tibiae with white line above towards base. Metathorax immaculate; annulus on antennae entire . 46. sagtis. Metathorax with two white spots behind; annulus on antennae in¬ terrupted beneath . 53. sublatus, var. AMERICAN HYMENOPTERA. 137 Postpetiole with white spot or band at tip. Metathorax immaculate . 56. tinifascintorius. Metathorax with two white spots behind . 53. siiUlatus, var. Apex of abdomen marked with white.. . Ambly. improvisus. Antennse entirely black. Postpetiole entirely black. Scutellum entirely black . 15. liiacilcntiis. Scutellum pale. Apex of abdomen black. Metathorax immaculate. Posterior tibine white or yellow, black at tips. Wings fuscous . 58. ISrontciis. Wings subhyaline. Posterior tarsi whitish; all the coxae black . 59. aurfax. Posterior tarsi white, annulate with black; four anterior coxae white . 60. cinctitarsis. Posterior tarsi entirely black, all the coxae 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 coxae 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 tibiae entire. Wings smoky, sometimes clear at base. ..49. viltifi’ons. Wings hyaline, narrowly dusky at tips . 50. recens. White line on posterior tibiae not reaching the tip; wings hyaline . 34. snbcyaneus. Face entirely white; wings hyaline . 52. jcjumis. Metathorax with two white spots behind . 53. sublattis. Apex of abdomen fulvous, venter and narrow lateral margins of dorsal segments yellowish . 63. vcntralis. Postpetiole with white spot or band at tip. Scutellum white only on lateral margins; abdomen blue. ..23. Cicrulcus. Scutellum white; abdomen black. Metathorax immaculate . . . 54. Azotus. Metathorax with lateral white spot . 55. iiifidclis. Posterior legs black, their coxse, femora and tibise marked with white. Scutellum white only on lateral margins; abdomen blue; metathorax marked with white . 24. pulHicr. Scutellum white; abdomen black; metathorax immaculate. ..61. ornatipes. Posterior legs ferruginous. Posterior coxse ferruginous, tips of their femora, tibite and tarsi entirely black; form slender. Face pale . 68. pucrilis. Face black . Ambly. illaetabilis. TRANS. AUER. ENT. SOC. VI. (19) JULY, 1877. 138 E. T. CRESSON. Posterior coxae black. Apical segments of abdomen black, immaculate. Scutelluin black. Face yellow; abdomen robust, opaque . 66. siniilaris. Face black; abdomen rather slender and smooth beyond second seg¬ ment; wings fuscous . 67. petlalis. Scutelluin yellow . Ambly. luctus. Apical segment of abdomen fulvous; face yellow . 64. apicalis. Apical segment of abdomen white; face black with sides narrowly pale; scutelluin white posteriorly . 69. liclripes. 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- consignalus. All the segments narrowly margined at apex with white. Metathorax and pleura black, with pale markings; posterior femora black; antennae without pale annulus . 7S. alboinarginatus. Metathorax and pleura ferruginous, with pale markings; posterior femora ferruginous; antennae with pale annulus . . 79. Dlandii. 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. Antennae with pale annulus . 75. suadus. Antennae without pale annulus. Third segment with indistinct yellowish band at base; wings fuliginous; metathorax entirely black . 58. JSronteus, var. Third segment with broad yellow band shading into fulvous at apex; wings hyaline; metathorax white at tip . 80. Dakota. Second and third segments entirely yellow . .81. pictii'rous. Second and third segments yellow tinged with fulvous, third segment with large blackish mark at base . 82. bipunctatus. Second and third segments yellow, varied at base and apex, and some¬ times centrally, with ferruginous or fuscous . 84. versabilis. 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, gastrocoeli transverse; meta¬ thorax generally more or less yellow . . . 85. COUies. Second and third segments yellow, more or less black at base. Gastrocoeli deep. Size medium, .60 inch . 86. trizonatus. Size small, .35 inch . 91. parvus. Gastrocoeli shallow, subobsolete . . . 92. vescus. 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 postpetiole. Base of segments 2 — 4 yellow, apex black, first segment entirely black. Gastrocoeli deep, the yellow band on fourth segment interrupted medially; size rather large . 85. comes, var. AMERICAN IIYMENOPTERA. 139 Gastrocosli subobsolete; the yellow band on fourth segment entire; size small . 93. pomilius. Base of segments 2 — 4 black, apex yellow, tips of first segment yellow. Large; pale orbital lines entire . 87. lmuiificiis. Medium ; pale orbital lines interrupted posteriorly . 88. Isetus. Small; pale orbital lines interrupted posteriorly . 91. parvus, var. Apex of abdomen black margined with white or yellow. Mesothorax black, immaculate ; abdomen broad, black with yellow or whitish bands . . 94. tHavizauatus. Mesothorax black, with median yellow spot; abdomen narrow, black, with yellow bands . 90. zelbrutus. Mesothorax black, with two longitudinal yellow lines; abdomen narrow, slender at base, yellow with black bands . 96. comptus. Mesothorax fulvous, with two longitudinal yellow lines . 95. dirtiosus. Apex of abdomen fulvous, sometimes marked with white or yellow. Antennse without pale annulus. Postpetiole aciculated. Segments 5 and 6 black, 7 fulvous. First segment entirely black . 98. inronsfaus. First segment black, yellow at tip . 99. inf ucatus. 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 . 103. zelotypus. 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. variegatus. Posterior femora fulvous. Mesothorax black or ferruginous . 106. <*rotei. Mesothorax black, with two yellow stripes . 107. dclicatus. Postpetiole punctured . 89. inimicilS. Antennse with pale annulus. Postpetiole aciculated; apical segment fulvous . 104. orepcrns, var? Postpetiole punctured ; apical segment white . 110. Eleiligbrodti. Postpetiole smooth and polished; apical segments fulvous. Posterior femora black . 108. paratus* Posterior femora fulvous . 109. vimiulus. Section IV. — Abdomen fulvo-ferruginous, apical margins of segments 1 — 4, and terminal segment, yellow . 111. boncsf us. Section V. — Abdomen bright saffron-yellow , the three or four apical segments black ; legs entirely yellow . 1 12. inilviis. Section VI. — Abdomen more or less ferruginous, apex always black. Segment 3 ferruginous at base, remaining segments black; wings 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. CRESSON. Scutellura white; the second, third and base of fourth segments of abdomen yellowish ferruginous . 116. ISelfragei. Posterior legs and the second, third and fourth segments of abdomen ferruginous . 137. rufiveutris, var? Wings hyaline or subhyaline. Antennfe without pale annulus. Scutellum black. Posterior femora black, tibiae yellow, black at tips ; four apical segments of abdomen and the head entirely black . 122. eervulus. Posterior femora and tibiae ferruginous, tipped with black: four apical segments of abdomen black; face with pale lateral mar¬ gins . 123. decoratns. Posterior femora and tibiae ferruginous ; two apical segments of abdomen black; face with pale lateral margins.. ..126. limbifrons. Scutellum more or less pale. Posterior coxae black, or black and white. Postpetiole coarsely granulated, not longitudinally rugose; posterior coxae black and white . ..Ambly. electus. Postpetiole very coarsely longitudinally rugose, also the three fol¬ lowing segments; posterior coxae black . 117. procax. Postpetiole finely, distinctly aciculated. Scutellum flat. Posterior femora black; abdominal segments 2 and 3 entirely ferruginous; scutellum entirely white . 115. restrictus# 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. bii>uii<*tatus, var. Face entirely yellow . Ambly. Quebecensis. Scutellum convex . 160. instabilfs. Postpetiole very finely and indistinctly sculptured ; abdominal seg¬ ments 2 and 3 ferruginous . 124. laeliry mans. Posterior coxae ferruginous . 125. citrilYous. Antennae with pale annulus. Apical segments of abdomen entirely black. Posterior coxae, trochanters and femora black . 118. levictlltlS. Posterior coxae, trochanters and femora ferruginous. ..121. liospitlis. Apical segments of abdomen marked with white . 120. fiuitiiuus. 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. ruliventris. Scutellum with white spot; postpetiole coarsely rugose; four anterior coxae white beneath . 138. placidus. AMERICAN HYMENOPTER.A. 141 Posterior legs black, their tibia© with white line or spot laterally towards base; scutellum white ; scape entirely black . 139. devinctor. Posterior legs black, their femora and tibiae ferruginous; scutellum black. Abdomen brown-ferruginous . 137. rufivcutris, var. Abdomen and legs entirely ferruginous. Thorax black, mesothorax, scutellum and disc of metathorax ferrugi¬ nous . 148. cnidus. Thorax entirely ferruginous . 146. Ciipitus. Antennae with pale annulus. Head and thorax black; abdomen narrow, subcylindrical, segments not constricted at base . . . . . 141. insolens. Head and thorax ferruginous, raetathorax and pleura sometimes blackish ; abdominal segments constricted at base . 149. trogii'ormMS. 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. nmimoMUS. First abdominal segment black, yellow at apex . 104. creperus. Posterior legs ferruginous; mesothorax more or less dull ferruginous. First and base of second segments of abdomen black; metathorax entirely black . 152. discus. First and second segments of abdomen entirely ferruginous; meta- thorax more or less marked with ferruginous . 150. dillicilis. Head and thorax ferruginous, pleura generally black beneath. Gastrocoeli deep, fovei form ; postpetiole acieulated . 185. longulus. Gastroeoeli linear; postpetiole smooth and polished. ..186. YOlcns, var. Abdomen ferruginous, first segment only black. Scutellum black. Sides of face white . 158. Sauudersi. 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. viniileiitiis. Posterior trochanters black . Ambly. nubivagus. Four anterior coxae white . 153. allapMUS. Posterior femora ferruginous . 155. uuuciiis. Abdomen entirely ferruginous. Posterior femora black; thorax black . Ambly. nubivagus, var. Posterior femora ferruginous; thorax mostly ferruginous. Head black and yellow. Mesothorax black . 176. libciiM. Mesothorax ferruginous . 199. uliliK. Head ferruginous, face yellow . 191. scibilis. Head entirely ferruginous . 195. rubicuuduM. Antennae with pale annulus. Posterior coxae black, or black and white. Gastrocoeli foveiform, transverse or oblique, distinct. Abdomen immaculate, first segment except apex black . 166. valer. 142 E. T. CRESSON. Abdomen with two basal segments black, apical corners of segments 1 — 4 with white spot . 167. liiscivus. Gastrocceli elongate, linear, subobsolete or wanting. Clypeus broadly concave; abdomen fulvous, generally with fuscous spots on segments 2 — 4 . 170. w-album. 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. (luplicatus. Clypeus flat or subcon vex, not excavate medially; abdomen fulvous, generally more or less marked with fuscous . 175. scitulus. Posterior coxae ferruginous. Abdomen with a more or less distinct blackish band. Segments 2 — 4 or 5 narrowly black at base . 186. volens. Segments 2 and 3 narrowly black at apex . 187. pi'Opitius. Abdomen without blackish bands. Posterior tibiae black, with white annulus; tips of their femora and tibiae entirely blackish . 172. aimulatus. Posterior legs entirely honey-yellow ; their tibiae 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. imicronatus. Pleura whitish; metathorax with two short subacute spines; head with face and broad orbital lines white; posterior femora short and subrobust . 197. facetus. 1. Orpheus, Cress. Proc. Ent. Soc. Phil, iii, p. 13G, 9 . Ilab. — Mass., Pa. A large, somewhat shining, black species with no pale markings, except a white annulus on antennae, and in one specimen a subobsolete spot on tip of scutellum; wings smoky. Length 9 .75 inch. The large, subquadrate head and subsiuuate anterior margin of clypeus refer this and the next species to Chasmodes, Wesmael. 2. saucius, Cress. Proc. Ent. Soc. Phil, iii, p. 137, 9j 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 . Ilab. — Va., N. C., Ga. A large dull black species with blackish violaceous wings, and scabrous postpetiole; anteunae with a broad white annulus. A specimen from N. C. has a short wdiite line in front of tegulae wanting in other specimens. Length 9 .7G inch. AMERICAN PIYMENOPTERA. 143 4. germanus, n. sp. 9- — Dull black, mesothorax, scutellum and apex of abdomen shining; a short line on upper anterior orbits, spot at summit of eyes, broad annulus on antennas, interrupted beneath and dot beneath tegulae white; the four or five basal joints of flagellum subequal and about twice longer than broad; scutellum 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 coxae 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; gastrocoeli large and deep. Length .65 inch. Halt. — 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 j Trans. Am. Ent. Soc. i, p. 292. Ilab. — Can., Pa., Ya., 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, Coutrib. Macl. Lyc. i, p. 72. afer, Cress. Proc. Eut. Soc. Phil, iii, p. 138, 9 . Hub. — Can., N. Y., N. J., Pa., Ill. 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 — .60 inch. 7. cincticornis, Cress. Proc. Ent. Soc. Phil, iii, p. 139, 9 . Hal. — Can., Mass., Pa., Ill., 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 coxae will readily distinguish this species. Length 9 .50 — .00 inch. 8. galenus, Cress. Trans. Am. Ent. Soc. Phil, i, p. 292, $ . Ilab. — Can., Mass., Pa., Ya., Ill. A narrow, elongate, dull black, immaculate species, with broad yellowish auuulus on antennae and fuliginous wings. Length £ .00 — .67 inch. Probably the £ of cincticornis. 144 E. T. CRESSON. 9. torvinus, Cress. Trans. Am. Ent. Soc. i, p. 292, % . Ilab. — Illinois. A rather large dull black immaculate species with narrow pale annulus on 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 tibise in front, white; antennse long, slender at tips; thorax rather shining; disc of mesothorax sparsely punc¬ tured; seutellum 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 confiuently punc¬ tured, gradually less strongly so towards apex, base of second longitudinally rugose, gastrocoeli large and very deep. Length .70 inch. Ilab. — 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. forth , Prov. Nat. Can. vii, p. 79, 9 . Hub. — 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 seutellum; annulus on antennae very broad and yellowish. Length 9 .70 inch. This is probably the 9 of flavicornh. 12. flavicornis, Cress. Proc. Ent. Soc. Phil, iii, p. 140, S . Ilab. — Can., N. Y., Pa. A large dull black immaculate species, with fulvous-yellow antennae and fuliginous wings. Length % .70 inch. Probably the £ of centrator. 13. solitus, Cress. Proc. Cal. Acad. Nat. Sci. 1877, 9. Ilab. — 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. h • — Dull black; face more or less white, sometimes with only upper margin irregularly white; clypeus sometimes with two oblique white marks; antennse with a white annulus; a short white line before tegulse; tegulse subeonvex, 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 tibine in front white; abdomen opaque, first segment subopaque, not broad at tip and finely roughened or aciculate, second and third segments densely punctured, 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. 249, S . Ilab. — Colorado. A long, narrow species, with the body dull opaque black, except the uiesothorax, thorax beneath aud scutellum, which are shining, the latter polished and impunctured; head small; face, anterior orbits, clypeus, except a brown spot on its anterior middle, mandibles and palpi, lemon-yellow; the antennae are very long, slender, tapering to a fine point at tip, dull black, basal joint beneath spotted with yellowish ; wings yellowish-hyaline; legs black, coxae 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 £ .00 inch. 16. corvinus, n. sp. 9- — Small, black, shining, feebly punctured; antennae robust, thickened at tip, a narrow white annulus at about the middle, joints three and four short, subequal, 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 tinged with rufous, all the tibiae with a large white spot on outer side rather above the middle, posterior coxae with a small brown pubescent patch at tip beneath; abdomen broadly fusiform, second 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. Ilab. — White 31 ts., N. II., (3Iorrison). 17. odiosus, Cress. Proc. Cal. Acad. Nat. Sci. 1877, $ . Ilab. — California. A subrobust rather shining black species with entirely black antennae and a pale spot on each side before the wings; the wings are slightly smoky, aud the abdomen is faintly tinged with blue. Length % .60 inch. 18. saevus, Cress. Trans. Am. Ent. Soc. i, p. 296, 9. Ilab. — 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 antennae have a broad white annulus and the wings TBANS. AMER. ENT. SOC. VI. (20) julv, 1877. 146 E. T. CRESSON. are clear; postpetiole smooth and shining with apex punctured. Length 9 .47 inch. 19. ater, Cress. Proc. Ent. Soc. Phil, iii, p. 138, 9 . Hab. — 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. Soc. i, p. 293, 9 . Ilab. — Can., Ct., N. Y., Ill. 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, £ . Ilab. — Can., N. H., Mass., Ill. 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 tibiae 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. Hub. — Massachusetts, (Ridings). Closely allied to cseruleus which, however, has a distinct pubescent patch on underside of posterior coxae. 23. cseruleus, Cress. Proc. Ent. Soc. Phil, iii, p. 149, 9 . Ilab. — Can., Mass., Pa., N. J., Md., Va., Ill., 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, Ilyrn. p. 304. Uab. — Can., N. Y., La. This handsome species is closely allied to cxruleus, but is more robust, the thorax and legs much more elabor¬ ately ornamented with white, and the posterior coxm of 9 are destitute of the pubescent scopa seen in cxruleus. Length $ 9 .65 inch. 25. navus, Say, Bost. Jour. Nat. Hist, i, p. 229. cinctipes, Prov. Nat. Can. vii, p. 51, 9 - Ilab. — Can., Pa., Md., Ill. 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 ; coxal scopa distinct. Length 9 .50 inch. 27. caliginosus, Cress. Proc. Ent. Soc. Phil, iii, p. 144, 9 . Ilab. — Col., Ill. 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. £ . Ilab. — 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. Ent. Soc. Phil, iii, p. 151, 9 • Hab. — Del., Ill., Tex. The abdomen of this species has a faint bluish tinge; the orbits, two dots on clypeus, a broad white annulus on antenna;, line before wings, spot on scutellum 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 tegulre, line beneath, spot on scutellum, sometimes a dot behind, spot 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. Hab. — N. .J., Ill. This may prove to be the % of Orpheus. It differs from vittifrons 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 coxae 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. Hab. — Canada, (Pettit). 32. citatus, Prov. Nat. Can. ix, p. 8, % . Hab. — Can., N. H. A slender black species, with sides of face, annulus on antennae, scutellum and spot at tip of abdomen white; wings hyaline, faintly clouded at apex; postpetiole smooth and pol¬ ished ; gastrocoeli large aud 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, upper margin of prothorax, spot on tegulse, 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 spot 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. Ilab. — 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 HYMENOPTERA. 149 34. subcyaneus, Cress. Proc. Ent. Soc. Phil, iii, p. 148, $ . pullatus , Cress. Proc. Ent. Soc. Phil, iii, p. 146, % . Hob.— Can., Me., Mass., N. Y., N. J., Pa., Del., Ga., Ill., Col., Tex. The abdomen 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 antennal and scutellum white; wings subhyaliue. The S 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 S 9 .35 — .60 inch. 35. neutralis, Cress. Proc. Cal. Acad. Nat. Sci. 1877, % . Hub. — California. This has much the appearance of a large speci¬ men of subcyaneus % , but the scape beneath and the posterior legs are entirely black. Length % .65 iuch. 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 antennse, interrupted beneath, collar, upper margin of prothorax, short line beneath tegulse, two short lines on disc of mesothorax, large square spot on scutellum, spot on four anterior coxae and trochanters beneath, extreme tips of their femora and anterior tibiae in front, all white; antennae 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. Ilab. — New York. Allied to subcyaneus but very distinct by the ornameutation 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 annulu3 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 fourth; scutellum flat, polished, feebly punc¬ tured, broadly truncate at tip; metathorax coarsely punctured, central area large subquadrate with sides rounded, posterior 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 small and deep. Length .40 inch. Hub. — Can., Mass. Differs from subcyanevs 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. I lab. — 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 broad 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 antennae, short line before and one beneath tegulse, scu¬ tellum entirely and large spot on disc of three apical segments of abdomen, white; antennae 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 tibiae tinged with brown, the an¬ terior pair and tips of femora pale rufo-fuscous in front, posterior coxae nude beneath and strongly punctured; abdomen closely and strongly punctured on segments two and three, confluently so . — Canada. Resembles audax in general appearance, but has the posterior tarsi annulated with black at tips of joints, the four anterior coxae beneath and the second joint of posterior trochanters are white; one specimen has a spot at tip of posterior coxae beneath. Length £ .57 — .65 inch. 61. ornatipes, Cress. Trans. Am. Ent. Soc. i, p. 294, £ . Hob. — West Virginia. This species may be easily known by all the coxae, femora and tibiae being white beneath; the legs are short aud robust, especially the posterior femora; the postpetiole is narrow, shining, with a large puncture on the disc; gastrocoeli small, puncti- form ; wings clear. Length £ .55 inch. 62. gestuosus, n. sp 9. — Small, black, very closely and finely punctured; broad annulus on antennae, scutellum and spot on middle of two apical segments of abdomen, white; sometimes there is a pale dot on each side of antennae and a white spot before and beneath tegulae and on outer side of four anterior coxae; mandibles, four anterior knees, and tibiae in front, base of posterior tibiae, and all the tarsi more or less dull ferruginous; antennae rather slender, attenuated at tip, third joint twice longer than wide and longer than fourth which is equal with fifth ; scutellum slightly convex, polished, sparsely punctured; metathorax obliquely truncated behind, with sharp lateral carina, central area large, quadrate; wings AMERICAN IIYMENOrTERA. 157 tinged with fuscous at tips; legs moderately stout, tibial spurs pale, posterior coxae beneath nude and closely punctured; abdomen oblong-ovate, shining at tip; first segment gradually and rather broadly dilated at tip and more or less distinctly longitudinally aciculate; base of second segment more sparsely and strongly punctured than remainder, gastrocoeli tolerably large and not deep, sometimes tinged with ferruginous. Length .30 inch. Ilab. — White Mts., N. H., (Morrison); Brit. Col., (Crotch). The specimen from British Columbia has base of second abdominal segment strongly tinged with ferruginous. G3. ventralis, Cress. Proc. Ent. Soc. Phil, iv, p. 250, % . Ilab. — Colorado. This is much like apicalis , but more slender ; the teguke and scutellum bright lemon-yellow, as well as the nervures of the wings at base; the legs are lemon-yellow, except the posterior coxae, their femora and tips of their tibiae which are black; the lateral edges of abdominal segments two to five and the two apical ones entirely, are fulvous; venter entirely yellowish; wings subhyaliue. Length % .50 — .55 inch. 64. apicalis, Cress. Proc. Ent. Soc. Phil, iii, p. 152, % . Ilab. — Colorado. A dull black species, with pale smoky subviola- ceous wings and apex of abdomen fulvous; scutellum with a dull yellowish spot; face, clypeus, scape beneath, and four anterior legs in front bright lemon-yellow ; cox* black, remainder of legs pale ferruginous; mesothorax, scutellum and pleura polished. Length S .55 inch. 65. semilaevis, Cress. Proc. Ent. Soc. Phil, iii, p. 142, 9 . Ilab. — Colorado. This is a immaculate black species with meso¬ thorax, scutellum and pleura polished and sparsely punctured ; the femora robust and ferruginous ; the abdomen with a faint bluish tinge, densely punctured and longitudinally rugose on basal middle of second segment, gastrocoeli deep; postpetiole longitudinally acicu- lated; antenna? short, robust, with a narrow pale annulus on flagellum ; the face is broad and unusually short; coxal scopa distinct. Length 9 .55 inch. 60. similaris, Prov. Nat. Can. vii, p. 26, S . Ilab. — Canada, (coll. Provancher). This rare species is black, opaque, the thorax above and laterally shining; face and clypeus yellowish-ferruginous, shining, suture and fovea? of clypeus black, also a black dot beneath antennae; scape pale beneath; scutellum flattened, pubescent, punctured; wings hyaline, nervures black, stigma fulvous ; legs fulvo-ferruginous, coxae and trochanters black ; postpetiole aciculated, gastrocoeli large and deep. Length % .65 inch. 158 E. T. CRESSON. 67. pedalis, Cress. Proc. Ent. Soc. Phil, iii, p. 141, b ; iv, p. 249, 9 . Hab. — Colorado. A slender, dull black, immaculate species, with smoky wings and ferruginous legs, except coxae and trochanters which are black. Length b 9 -55 inch. 68. puerilis. Cress. Trans. Am. Ent. Soc. i. p. 296, b . meUicoxuSf Prov. Nat. Can. vii, p. 48, b . Hab. — Can., Mass. A long, slender, black, immaculate species, with clear wings, long slender tiliform antennae which are black above and yellowish beneath, yellow bice and pale ferruginous legs except tips of posterior femora, their tibiae and tarsi which are black; the scutellum is generally dull ferruginous. Length $ .49 — .50 inch. 69. helvipes, Cress. Trans. Am. Ent. Soc. i, p. 297. b 9. Phi/gadeuon a(er, Prov. Nat. Can. viii, p. 317, 9 . Hab. — Can., Mass., Ct., Ill. A small robust, shining black species, with clear wings and short robust ferruginous legs; the orbits of b , apex of scutellum and tip of abdomen are white. Length b 9 .25 — .35 inch. 70. bioculatus, n. sp. 9.— Opaque -black ; bead Binall, cheeks flat ; broad annulus on antennae, dot before tegulse, scutellum, anterior knees and tibise, intermediate tibiae except tips, broad annulus on posterior pair and two irregularly formed spots on each side of middle of second abdominal segment, white; antennae slender, with third joint slender and cylindrical, a little longer than fourth, the joints before apex slightly flattened: mesothorax confidently punctured: scutellum sub- convex, broadly truncate at tip, the basal excavation very deep and lateral carina prominent and sharp; metathorax rugose, truncate behind, central area subquadrate, broadly rounded anteriorly; wings uniformly pale brownish, stigma honey yellow, nervures dark ; legs slender, tips of anterior ti bine and four anterior tarsi more or Jess dull ferruginous, posterior cox* beneath nude and closely punctured, opaque; abdomen elongate fusiform, slightly shining at apex; first segment not broadly dilated at tip; longitudinally rugose and in profile subpyrainidal ; second and third segments strongly continently punc¬ tured, base and middle of second longitudinally rugose, gastroeoeli large and very deep; apical segments almost smooth. Length .55 inch. b - — Face, clypens, labruin, spot on mandibles, palpi, scape beneath, tegulse, short line before and one beneath, spot on four anterior eoxre beneath, anterior femora in front, four anterior knees, their tibiae and tarsi, basal half of posterior tibiae and base of their tarsi yellowish; otherwise marked as in 9- Hab. — Can., White Mis., N. H. Specimens may be found with the two pale spots on secoud abdominal segment confluent and form¬ ing a band. A M ERIC AN H Y M E NOPT KK A . ir>o 71. uncinatus, n. sp. 9- — Robust, dull black; broad annulus on antenna, seutellum, anterior knees in front, their tibiae, intermediate tibiae except tips, broad annulus on posterior pair, a dot on each side of apex of first abdominal segment, a band on apex of second and a 6pot on middle of three apical segments, all white ; antennae short, robust, strongly involute, joints short, the third not twice longer than broad and subequal with the fourth; seutellum broad, very slightly con¬ vex, smooth, polished, and impunctured, apex truncate; metathorax obliquely truncate behind, slightly excavated, lateral carina prominent and sharp, central area large, quadrate; wings uniformly fuliginous; legs tolerably stout, apex of posterior coxa beneath with a brown pubescent patch; abdomen oblong-ovate, closely and deeply punctured on segments two and three, apical segments shining; first segment rather broadly dilated at tip, shining and finely acieu- late, in profile subpyramidal, gastrocoeli moderately large and deep. Length .55 inch. Halt. — Canada, (Pettit). A very distinct species, allied 1 0 feral in but larger and more robust. 72. feralis, Cress. Trans. Am. Ent. Soc. i. p. 301, 9 . Hub. — Can., N. H., Mass. A rather small robust black species with annulus on antennae, seutellum, band on tibiae, band on apex of second abdominal segment and two spots on tip of abdomen white or’ yellowish, wings subhyaline. One specimen from Canada has a narrow pale band at apex of third abdominal segment. Length 9 .40 — .45 inch. 73. bizonatus. Cress. Proc. Ent. Soc. Phil, iii, p. 160, 9 . Hub. — Colorado. A dull black species, with sides of face, annulus on antennae, seutellum, most of tibiae and a band uneven posteriorly, at base of second and third abdominal segments, yellowish-white; wings fusco-hyaline ; the antennae are long and slender. Length 9 .50 inch. 74. texanus, n. sp. £>. — Small, black, shiuing; face, clvpeus, spot on mandibles, palpi, orbits, interrupted behind summit of eyes, scape beneath, tegulse, line in front, short line beneath, scutellums, tjvo spots on posterior face of metathorax, four an¬ terior coxae, all the trochanters, four anterior femora in front, their tibia and tarsi, basal two-thirds of posterior tibia, their tarsi except tips of joints, apical margin of three basal segments of abdomen and spot on apical segment, vel- lowish-white ; the hand on apex of first segment is broad and even, that on second rather broad and strongly sinuate anteriorly, that on third very narrow and subiuterrupted medially and dilated laterally; flagellum slender, entirely black; seutellum convex ; wings clear; abdomen finely punctured, postpetiole punctured, gastrocoeli rather deep. Length .37 inch. Hub. — Texas, (Belfrage). A pretty little species. 1G0 E. T. .CRESSON. 75. suadus, n. sp. £ . — Small, slender, black; orbits, face, clypeus, mandibles, palpi, 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 coxae, 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; antennae nearly as long as the body, slender; abdomen deli¬ cately punctured, postpetiole narrow, nearly smooth, gastfocoeli subobsolete, indicated by a pale spot; apex of abdomen piceous. Length .40 inch. Hah. — Canada. This species has remarkably long antennae. 7G. 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., W. 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, S . 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, tegulae, 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 tibiie, all whitish. Length % .50 inch. 79. Blandii, Cress. Proc. Ent. Soc. Phil, iii, p. 188, S . Hah. — Pennsylvania. This pretty species is black, with the pleura, metathorax and legs fulvous; the antennae are nearly as loug as the body, with a broad white anuulus; 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- AMERICAN HYMENOPTERA. 161 thorax behind the tegulae, lateral and apical margins of the scutellum, postscutellum, 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 tibue and base of tarsi blackish ; the wings are clear; the base of the inetathorax above is blackish. Length £ .42 inch. 80. Dakota, Cress. Trans. Am. Ent. Soe. 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 posteriorly ; the face, scutellums, posterior face of metathorax and most of legs are yellow ; antennae black above, pale beneath. Length £ .50 inch. 81. pictifrons, Cress. Proc. Ent. Soc. Phil, iii, p. 160, £ . Hab. — 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 and most of tibiae yel¬ lowish ; wings subhyaline. Length £ .42 inch. 82. bipunctatus, Cress. Proc. Ent. Soc Phil, iv, p. 253, £ . var . festus, Cress, id. p. 257, £ . Hab. — Colorado, In the type the head is entirely black with two yellow spots on clypeus ; the thorax entirely black except a yellow dot on tegulae, 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 variety festus 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. Ischnus Wilsoni, Cress. Proc. Ent. Soc. Phil, iii, p. 188, £ . Hab. — N. J., Del., Va. A small, elongate, slender, shining black species; the abdomen convex and cylindrical with the second and third segments entirely yellow except narrow black apical margin ; the an¬ tenna; are black above, pale beneath ; face, scutellum and most of legs yellow; wings yellowish-hyaline. Length £ .40 — .50 inch. 84. versabilis, n. sp. £. — Dull black; line on anterior orbits, face, clypeus, mandibles, labrum, palpi, scape beneath, anterior margin of tegulae, line before, another beneath, scutellum, sometimes a spot or line behind, dot on four anterior cox* and TBASS. AUER. ENT. SOC. VI. (22) jcly, 1877. 1G2 E. T. CRESSON. trochanters beneath, their knees, tibiae and tarsi, anterior femora in front, pos¬ terior tibiae 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 aeiculated ; gastrocoeli large and deep; antennae more or less pale beneath; posterior femora some-1 times pale at base. Length .45 — .55 inch. Ilab. — Can., Me., N. Y., Ya. This is quite a variable species* closely allied to comes which however has a more fiuely sculptured abdomen. 85. comes, Cress. Croc. Ent. Soc. Phil, iii, p. 158, £ ; Trans. Am. Ent. See. i, p. 301. Hob.— Can., Me., N. IE, Mass., N. Y., Pa., Ya., Ill. This is an extremely variable species but easily recognized 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 always yellow and the legs quite constant iu 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. Length £ .50 — .05 inch. * 86. trizonatus, Prov. Nat. Can. ix, p. 8, £ . Hub. — 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 £ .55 inch. 87. munificus, Cress. nobilis, Cress. ( nec I Vesm.), Proc. Ent. Soc. Phil, iii, p. 155, £ . Ilab. — N. Y., Ill. This fine species has the appearance of a large fat specimen of Isetus which it resembles in color and markings. Length £ .05 — .75 inch. AMERICAN HYMENOPTERA. 1G3 88. laetus, Brulle, Hym. p. 303; Cress. Trans. Am. Ent. Soc. i, p. 300. paratus, Say, Post. Jour. Nat. Hist, i, p. 228, £ . Hah. — Can., N. H., Mass., N. Y., N. J., Pa., Del., Md., Ya. This is our commonest species. The second, third and fourth segments of abdomen are yellow, more or less broadly banded at base with black ; the postpetiole 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 £ .60 — .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 postpetiolc 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, 9 ; 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 coxae, also yellow ; legs fulvo-ferruginous ; wings tinged with yellowish; the flagellum of antennae 9 has a white annulus, that of £ is entirely black; coxal scopa 9 distinct. Length £ 9.35 — .40 inch. 91. parvus, Cress. Proc. Ent. Soc. Phil, iii, p. 159, £ . Hah. — M ass., N. Y., Va., 111. This little species is about one-half the size of Isetus, 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, £ . Hub. — Can., N. II., 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. £ . Hub. — Can., Mass., B. Col. A long, 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, scutellum, four anterior coxae 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. Ent. Soc. Phil, iii, p. 156. multor , Cress. Trans. Am. Ent. Soc. i, p. 299. £ . Hub. — Can., N. Y., Del., Va. This is a dull black species, with the face, tegulae. Hue before and another beneath, scutellum, two spots on metathorax, legs and apical margins of all the abdominal segments, yellow or yellowish-white; tips of posterior femora and of their tibiae black ; the two spots on metathorax are sometimes mere dots, while in some specimens they are large and confluent; the bands on second and third segments of abdomen are often broad and more or less narrowed in the middle anteriorly, sometimes the fifth segment is immaculate, or with a very narrow interrupted band; occasionally the cox:e are marked with black and the femora all more or less fulvous; antennae generally blackish above, fulvous beneath ; the pale bands on abdomen vary from almost white to fulvous-yellow. One specimen from Virginia, has the markings of the abdomen reduced to a dot on each side of postpetiole, a narrow band at tip of second, third, sixth and seventh segments. A specimen from Canada has the band on second segment reduced to a dot on lateral margins. Length £ .55 — .63 inch. This may be the £ of jucundus. 95. dictiosus, n. sp. % . — Opaque bright lemon-yellow; middle of vertex and occiput dull fer¬ ruginous; antennae fulvous, scape yellow; middle of prothorax and lateral sutures of rnesothorax black, also seutellar regiou and broad upper and narrow lateral margins of pleura; rnesothorax ferruginous with two narrow longitudinal yellow stripes which become continent on posterior disc where it forms a large spot; pleura dull ferruginous beneath ; metathorax tinged with fulvous, its basal suture and spot in central area black; wings hyaline; legs slender; posterior coxse with a black spot beneath and a ferruginous stain on the outer side at base; four anterior femora more or less fulvous at base above, posterior pair ferruginous, more or less black at tips; posterior tibiae black at tips, their tarsi dusky; abdomen narrow, very densely sculptured; first segment ferruginous, black at tips, apex of second segment with a broad black band, that of third AMERICAN HYMENOPTERA. 165 with a narrower one, the three following segments broadly black at base, apical segment fulvous; yellow at tip; gastrocoeli small and deep; postpetiole finely aciculated. Length .50 inch. liab. — Kansas*. 96. comptus, Say. Host. Jour. Nat. Hist. i. p. 229, % . Hob. — Pa., Del., Md., Tex. A slender, gracefully formed species, the abdomen being strongly narrowed to base. The prevailing color is yellow with the vertex, occiput and antennae except scape beneath, black ; mesothorax black, with two central yellow lines, a yellow dot on each side behind the tegula; ; prothorax black, broadly margined with yellow, pleura black, with a large yellow blotch on each side; tegulae, scutellums and uietatborax, yellow, the latter with a broad central black stripe, sometimes interrupted at base; wings pale-yel¬ lowish hyaline; legs yellow, posterior coxae black beneath, their femora and tips of their tibite tinged with ferruginous, sometimes the posterior femora are blackish; abdomen very slender at base, gradually widen¬ ing towards 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 tjuite narrow, while all the others are broad. Length S .50 — .55 inch. This may be the S of atri/rons. 97. atrifrons. Cress. Proc. Ent, Soc. Phil, iii, p. 157, 9 > Trans. Am. Ent. Soe. i, p. 298. Hob. — Pa., 111. This species has much the same graceful form as comptus , of which it may be the 9 j the abdomen being narrowed and very slender at base; the face is entirely black, the anteuute slender, with a white annulus on flagellum; anterior orbits, two slender stripes on mesothorax, scutellum, two large spots on metathorax, coxa?, and band at tip of all the abdominal segments, yellow ; legs fulvo-ferrugi- nous; wiugs yellowish-hyaline. Length 9 -50 inch. 98. inconstans. Cress. Proc. Ent Soc. Phil, iii, p. 153, S . Hob. — Colorado. An elongate rather narrow black species with the face, clvpeus, scutellum, most of legs, and the second, third and fourth abdominal segments, 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; posterior coxae, their 1‘emora, and tips of their tibi* black. Length & .55 inch. 166 E. T. CRESSON. 99. infucatus, Cress. Proc. Ent. Soc. Phil, iv, p. 252, £ . Hal. — Col., Cal., Vancouver’s Island. This is a black species, with the face, clypeus, scape beneath, tegulae, spot before and beneath, scutellum, legs (except coxa), posterior femora and tips of their tibia)) 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 yellow; apex of abdomen always fulvous; wings smoky-hyaline. Length % }45— r.55 inch. This and inconstans may prove to be varieties of fhe same species. DO. salvus, Cress. Proc. Cal. Acad. Nat. Sci. 1877. Ilab. — Vancouver’s Island. This rather large species is black with the face, clypeus, scape beneath, tegula), line in front, scutellum’ spot behind, four anterior coxae and legs, posterior tibiae 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 fourth 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, 9 . Hah. — Can., Me., Mass. A very robust species, with short, stout antenna), the joints of which are short and thick. The vertex, meso¬ thorax, metathorax except flanks, tibia), 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 9 *55 inch. 1U2. jucundus, 13rull6, Hym. p. 305. Hah. — 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 anteumc 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 of jlavizonatus. AMERICAN II YMENOPTER A. 1G7 103. zelotypus, Cress. Trans. Am. Ent. Soc. i, p. 299, £ . Hub. — 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, £ . Hah. — Can., W. Va. 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 posterior coxae, femora except extreme base and tips of their tibiae are black; oue 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 broadly yellow. Length £ ,G2 inch. 105. variegatus, Cress. Proc. Ent. Soc. Phil, iii, p. 153; iv, p. 251, £ . Ilah. — Col., N. Mex., Cal., Van. A rather slender and extremely variable species, black, with the face, scutellum, metathorax more or less and most -of 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. Ent. Soc. Phil, iv, p. 251. 106. Grotei, Cress. Proc. Ent. Soc. Phil, iii, p. 154, £ . Hub. — Col., Ill. A long, rather narrow species, with the abdomen of three colors — black, fulvous and yellow, the base being black, the middle fulvous, shading 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, £ . Ilab. — Colorado. A delicate looking species both in shape and color. It is lemon-yellow, with the vertex, occiput, antennie, spot 108 r. T. CRESSOX. on each side of pectus, mesotborax, except two dorsal Hoes, sides of scutellum, broad sutures of pleura, aud the basal middle of abdominal segments four to six, black ; the femora and delicate stains on the abdomen fulvous; wings yellowish hyaliue, with the nervures pale fulvous. Length & .50 inch. This may be a very pale variety of Grotei. 108. paratus. Say, Contrib. Macl. Lye. i. p. 08, % ; Cress. ( Ischnus ), Proe. Ent. Soe. Phil, iii, p. 156, % . Hab. — Can., N. Y., Pa., Del., Ya. A pretty little species, slender in form and exceedingly variable in its markings. The bead is yellowish-white ; with the vertex and occiput black; antenna? long, slender, black above, fulvous beneath, with a more or leas 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, tegulse aud a line beneath, scutellum, postscutelluui, posterior portion of metathorax and a large spot on the thorax beneath between the four anterior legs and extending more or less upon the sides, all yellowish- white; wings clear; four anterior legs, including their coxae, yellowish- white, posterior cox® varied with yellowish beneath, their trochanters, base of femora, basal two-thirds of their tibiae and the apieal 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, often irregular, stain on the middle, sometimes forming a regular band, sometimes two spots; these stains become less distinct on the apical segments, which are sometimes entirely fulvous; beneath yellowish, fulvous at tip. Length £ .30 — .40 inch. 109. vinnulus. Jftchn ns vinnufus, Cress. Croc. Ent. Soc. Phil, iii, p. 189, £> . Hab. — Pa., Ya. This may possibly he 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 £> .40 — .45 inch. 110. Heiligbrodtii, n. sp. % . — Small, black; face, clypeus, orbits, spot on mandibles, scape beneath, annulus on flagellum, line on collar, upper margin of prothorax, spot on tegulse, short line above, another beneath, two slender lines on disc of mesotborax, scutellum. spot behind, posterior face of metathorax, spot on flanks, spot above middle cox»e, tips of four anterior coxse, spot on posterior pair above, apical AMERICAN HYMENOPTERA. 169 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. JIab. — Bastrop, Texas, (L. Heiligbrodt). Allied to honestus. 111. honestus, Cress. Trans. Am. Ent. Soc. i, p. 310, £ . Ilab. — 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; antennae black above, pale beneath, with broad whitish annulus above; wings hyaline. Length $ .42 inch. 112. milvus, Cress. Trans. Am. Ent. Soc. i, p. 305, £ . Clopini, Prov. Nat. Can. vii. p. 250, £ . 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 £ .05 inch. 113. volesus, Cress. Trans. Am. Ent. Soc. i, p. 304, 9 . Hub. — 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 . Ilab — Colorado. A small shining black species, with the mandi¬ bles, scape beneath, legs, scutellum obscurely, and secoud and third abdominal segments ferruginous ; antennas short and strongly invo¬ lute ; postpetiole punctured on disc; gastrocoeli obsolete; wings sub¬ hyaline. Length 9 .35 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 cox® beneath, four anterior legs, posterior tibire 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 instab ills. TUANS. AMEB. ENT. SOC. VI. (23) July, 1877. 170 E. T. CRESSON. 116. Belfragei, Cress. Trans. Am. Ent. Soc. iv. p. 156, £ . Ilab. — Texas, (coll. Belfrage). Black ; sides of face and of clypeus, dot on tegulae 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, clypeus, spot on mandibles, spot on scape beneath, tegulae, spot in front, another beneath, scutellum, dot on outer side of four anterior coxse, spot on their trochanters, their knees, and tibiae and tarsi entirely, posterior tibim 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- trocmli large and deep. Length .65 inch. Ilab. — Canada. 118. leviculus, n. sp. £ . — Black ; abdomen except the first and last one or two segments, fer¬ ruginous; sides of face and clypeus broadly, spot on mandibles, palpr, orbits, spot on scape beneath, broad annulus on antennae, 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 tibiae more or less ferruginous; abdomen narrow, finely punctured, postpetiole punc¬ tured, gastrocmli deep. Length .40 inch. Hub. — N. Y., Va. Resembles some of the dark varieties of dupli- catus. 119. terminalis, Cress. Proc. Ent. Soc. Phil, iii, p. 184, 9. Ilab. — 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 finitimus. 120. finitimus, Cress. Trans. Am. Ent. Soc. i, p. 304, £ , (not 9 ). var. Mesostenus apicalis , Prow Nat. Can. vii, p. 266, £ . Ilab. — Can., N. II., N. Y., Pa., Ill. 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, scutellum, four anterior cosce and spot at tip of abdomen, white. Length £ .30 — .37 inch. This may be the £ of terminalis. 121. hospitus, Cress. Trans. Am. Ent. Soc. i, p. 30G, £ 9. Ilab. — Can., Ill. 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; antennae 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, £ . Ilab. — 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, £ . Ilab. — Can., 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, £ . Ilab. — Can., N. II. Closely resembles cervulus but has the face, clypeus and scutellum yellow; same size. 125. citrifrons, Cress. Trans. Am. Ent. Soc. i, p. 307, £ . Ilab. — Ct., Pa. A small black species, with face, scutellum, and the four anterior coxae and trochanters pale yellow; the legs including posterior coxae and second and third abdominal segments yellow fer¬ ruginous; apical half of posterior femora and tips of their tibiae black ; autennoe long and fulvous, darker above; wings clear. Length £ .26 inch. 126. limbifrons, Cress. Proc. Ent. Soc. Phil, iii, p. 182, £ . Ilab. — 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 £ .30 iuch. 172 E. T. CRESSON. 127. vecors ( 'ventral is , Cress. Trans. Ain. Eut. Soc. i, p. 308, $ .) Hab. — Hudson’s Bay Territory. A small robust black species, with anterior orbits, mouth, scutellum 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 .33 inch. 128. nigrovariegatus. Phygadeuon nigrovariegatus , Prov., Nat. Can. vii, p. 182. 9 • — Small, robust, ferruginous ; face, cheeks, thorax especially laterally, and apex of abdomen, varied with black; antennse short, ferruginous, with short, submoniliform 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 ; gastrocceli small, shallow. Length .25 inch. Hab. — Canada, (coll. Provancher). 129. humilis, Prov. Nat. Can. vii, p. 82, 9 . var. Phygadeuon dorsalis , Prov. Nat. Can. vi, p. 285, 9 . Hab. — Canada, (coll. Provancher). This is probably nothing more than a variety of nigrovariegatus 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 antennae, 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; antennse except apex and scape beneath, mandibles, mesothorax, scutellum, tegulse, legs except coxse and trochanters, and three basal segments of abdomen, ferruginous; wings fusco-hyaline; antennse robust ; legs slender; abdomen broadly fusiform, densely punctured, postpetiole broad, aciculated, gastrocoeli large and deep, apical segments smooth and shining. Length .50 inch. Hab. — Colorado, (B. II. Smith). 132. indemnis, Cress. Proc. Cal. Acad. Nat. Sci. 1877. Hab. — 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 nYMENOPTERA. 173 133. caudatus, Prov., Nat. Can. vii, p. 82 9 . Phygadeuon termindlis , Prov. Nat. Can. vi, p. 284, 9 • Hub. — Can., Mass. A subrobust ferruginous species, with posterior femora, tips of their tibi®, and fourth and following segments of ab¬ domen black; scutellum and two spots on tip of abdomen whitish; antennae long and slender. Length 9 .43 inch. 134. putus, n. sp. 9. — 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. Hub. — Connecticut. 135. grandis, Brulle, Hym. p. 300. regnotrix , Cress. Proc. Ent. Soc. Phil, iii, p. 178, 9 • ambiguus , Cress. Proc. Ent. Soc. Phil, iii, p. 161, £ . Ilnb. — 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 tegul®, dot beneath, generally a spot on scutellum and the anterior legs in front, white. The 9 has a white annulus on flagellum, and the coxal scopa is distinct. Length £ 9 .70 — 1 inch. 136. inurbanus, Cress. Trans. Am. Ent. Soc. i, p. 302, 9 . Hub. — 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, llym. p. 301. var. incertus , Cress. Proc. Ent. Soc. Phil, iii, p. 180, 9 • semicoccineus , Cress. Proc. Ent. Soc. Phil, iii, p. 179, £ . var. californicus , Cress. Proc. Ent. Soc. Phil, iii, p. 180, £ . Hub.— Can., Mass., Pa., N. J., Del., Md., Va., Ill., Cal. Much smaller than grandis , the 9 with slender antenu®, broadly fusiform abdomen and posterior cox® nude beneath. A 9 specimen from Ill. E. T. CRESSON. 174 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 coxae and trochanters, ferruginous. The £ var. californicus has dark brown abdomen and ferruginous legs. Length £ 9 -50 — .70 inch. This species has been fouud to be parasitic on T "anessa Hunteri. 138. placidus, Prov. Nat. Can. vii, p. 76, £ . TIab. — Canada, (coll. Provaucher). Size and appearance of ruji- ventris , £ . Black 5 abdomen dark ferruginous beyond first segment ; face, clypeus, scape beneath, short line before tegulae, dot beneath, spot on disc of scutellum, four anterior coxae and trochanters beneath more or less, anterior tibiae 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; gastrocoeli large and deep, black. Length .65 inch. 139. devinctor, Say, Am. Ent. pi. 22. tibialis, Brulle, Hyin. p. 300. montivagus, Cress. Proc. Ent. Soc. Phil, iv, p. 255, £ . JIab. — Can., Pa., Del., Md., Ga., Ill., Col. A rather large species with red abdomen, pale scutellum, and white annulus on tibiae aud antennae 9 • The £ closely resembles that of grandis, but separated at once by the scape being entirely black and by the white spot on posterior tibiae near base. Length £ 9 -55 — -80 inch. 140. lividulus, Prov. Nat. Can. ix, p. 10, 9 . JIab. — Canada. A robust species near rufiventris, but differs from that species by the conspicuous whitish scutellum, shorter aud 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, $ . Ilab. — 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 -55 — .65 inch. This may be the Joppa maurator, Brulle, Ilyin, p. 287. 142. succinctus, Brulle, Hym. p. 301. JIab. — Can., N. Y., Pa., Md., Ill., La. This species is easily recog¬ nized by the ferruginous abdomen banded with black, pale scutellum, yellow tibiae aud tarsi and blackish wings; the black bands on abdo¬ men vary much iu width. Length £ .60 — .65 inch. AMERICAN HYMENOPTERA. 1T5 143. dorsalis, Cress. Proc. Ent. Soc. Phil, iii, p. 177, 9 . Hab. — 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. Lewisii, 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., Ill. A dark winged ferruginous species, with the pleura, metathorax, coxm, 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. Hub. — California. A rather stout ferruginous species with fusco- violaceous wings ; antennae 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. Hub. — California. This is probably the & of purpuripennis ; color entirely ferruginous with antennae except scape beneath, and sutures of thorax more or less, 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 purpuripennis , but more elongate and differently shaped. Length 9 .52 inch. 148. crudosus, Cress. Proc. Cal. Acad. 1877. Hab. — California. An elongate ferruginous species, with blackish wings, black head and thorax beneath ; face yellow ; legs entirely fer- ruginous. Length S .65 inch. 149. trogiformis, Cress. Proc. Ent. Soc. Phil, iii, p. 175, % ; Trans. Am. Ent. Soc. i, p. 307, 9 • Hab. — N. J., Ga., Fla., La., Tex. Easily recognized by the fer¬ ruginous body, broad blackish wings, unusually large head and strongly constricted abdomiual segments; the metathorax, pleura and posterior 17G . E. T. CRESSON. legs are sometimes more or less varied with black ; the antennae have a yellowish annulus in both sexes, sometimes indistinct; coxal scopa 9 distinct. Length £ 9 -40 — .50 inch. This may be the Joppa ferrugator (Fahr.) Brulle, Hym. p. 295. 150. difficilis, Cress. Proc. Cal. Acad. 1877. Uab. — 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 $ .GO inch. 151. animosus, Cress. Proc. Ent. Soc. Phil, iii, p. 1G4, £ . var. rubellus, Cress. Proc. Eut. Soc. Phil, iv, p. 254, £ . Hah. — 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, £ . Hab. — 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. 25G, £ . 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 tibiae except tips, their tarsi and ventral fold, bright lemon-yellow. Leugth £ .55 — .60 inch. 154. vinulentus, Cress. Proc. Ent. Soc. Phil, iii, p. 1G2, £ . 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 coxae being black. Length £ .65 — .70 inch. 155. nuncius, Cress. Proc. Cal. Acad. 1877. 1 lab. — 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 HYMENOPXERA. 177 four anterior coxae and trochanters are lemon-yellow; wings clear. Length £ .55 inch. 156. virginicus, Cress. Proc. Ent. Soc. Phil, iii, p. 181, 9 . Ilab. — West Virginia. A medium sized, robust black species, with short ferruginous abdomen and clear wings; antennae short, stout, with white annulus; 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. 165, £ . Ilab. — Colorado. A small sleuder 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; antennse 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 coxse 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. Ilab. — Canada. (Mr. William Saunders). 159. canadensis, Cress. Trans. Am. Ent. Soc. i, p. 308, 9 . Ilab. — Canada. A robust black species, with ferruginous abdomen, the third and fourth segraeuts of which are black at base; the tibiae are yellowish-white, black at tips, also scutellum and annulus on an¬ tennae; wings subhyaline; antennae with short stout joints. Length 9 .43 inch. 160. instabilis, Cress. Trans. Am. Ent. Soc. i, p. 303, £ 9. Ilab. — Can., Me., 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. 166, 9; Trans. Am. Ent. Soc. i, p. 307. Ilab.— N. Y., Ill. Form slender, ferruginous, head and thorax more or less black or fuscous; scutellum pale yellowish; antennae slender, with pale annulus; wings clear; a spot at tip of abdomen, TRANS. AMKR. ENT. SOC. VI. (24) july, 1877. 173 E. T. CRESSON. sometimes a dot on eacli side of postpetiole and occasionally a spot ou each side of third segment yellow; legs ferruginous. Length 9 .50 inch. 1G2. confirmatus, n. sp. 9. — Slender, fulvo-ferruginous; head, antennae, pro- and mesothorax and lateral regions of scutellura, black; face, orbits, margins of prothorax, and scutellum, whitish ; wings hyaline; antennse slender, basal joints of flagellum elongate; legs slender; abdomen narrowly fusiform, gastrocoeli large, oblique. Length .37 — .45 inch. Bab.— Can., Mass., N. Y. 163. velox, Cress. Proc. Eut. Soc. Phil, iii, p. 185, 9. Phygadeuon apicatus , Prov. Nat. Can. vii, p. 180, 9 • Plvjgadeuon Cressoni, Prov. Nat. Can. viii, p. 318, 9 • Bab. — Can., Pa., N. J., Ill. A ferruginous species, with pleura and metathorax black ; wings clear; apex of abdomen with yellowish spot, gastrocoeli very transverse, nearly meeting on the disc ; antennae black, with broad pale aunulus; 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; antennse 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 tibiae yellow, tarsi ferruginous; abdomen except base of first segment ferruginous, a yellow spot on apical segment, postpetiole broad, smooth. Length .35 — .40 inch. Bab. — White Mts., N. II. (Morrison). 165. vivax, n. sp. 9. — Small, rather robust, head and thorax, except scutellum, black immacu¬ late; antennae slender, black, with a broad yellowish annulus; scutellum pale yellow; wings subhyaline; legs subrobust, black, four anterior knees, tibiae, posterior tibiae except tips, and all the tarsi ferruginous; abdomen robust, fer¬ ruginous, first segment black, a whitish spot ou two apical segments. Length .30 inch. Bab. — White Mts., N. II. (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 tegulse* line before, short one beneath, scutellum and spot on anterior coxae 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. Bab. — White Mts., N. II. (Morrison). AMERICAN HYMENOPTERA. 179 1G7. lascivus, Cress. Trans. Am. Ent. Soc. i, p. 309, % . Ilab. — 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. 108. funestus, Cress. Proc. Ent. Soc. Phil, iii, p. 100, 9 . hoesitans , Prov. Nat. Can. vii, p. 80, 9 • Hal.— Can., N. II., M ass., Pa., Va., Ill. 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¬ tenna; stout, with thick-set joints. One specimen from Ill. 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. Ent. Soc. i, p. 307, 9 . Ilab. — Mass., N. C. Very near funestus , but with more slender an¬ tennae and a whitish spot at tip of abdomen. Length 9 .3G inch. 170. W. -album, Cress. Trans. Am. Ent. Soc. i, p. 309, £ 9 . Jschnus W.-album , Cress. Proc. Ent. Soc. Phil, iii, p. 191, S . Ischnus variegatus, Prov. Nat. Can. vii, p. 250, % . Ilab. — Can., N. II., Mass. The 9 of this species is elongate, robust, black antennae, head and thorax, and ferruginous legs and abdomen; spots on face and clypeus, orbits, annulus on antennae, collar, upper margins of prothorax, sometimes a spot on disc of mesothorax, scu¬ tellum and a W-shaped mark on metathorax, sometimes reduced to two spots or entirely wanting, white; wings clear; postpetiole smooth, gastrocoeli subobsolete. Length .50 — .55 inch. The £ is long and slender with abdomen and legs fulvous; head except vertex and occiput, scape beneath, collar, upper margins of prothorax, spot on disc of mesothorax, scutellum, spot behind, tegulac, line beneath, pleura more or less, a W-shaped mark on metathorax, coxae and trochanters and tip and sides of first abdominal segment, all white or yellowish-white ; autennse long, black above with broad pale annulus, beneath more or less yellowish; first abdominal segment ex¬ cept tip and sides black, remaining segments more or less varied with 180 E. T. CRESSON. fuscous or black, sometimes entirely fulvous ; the clypeus is concave and sides of the face depressed. Length .65 — .70 inch. 171. duplicatus, Say, Bost. Jour. Nat. Hist, i, p. 230; Cress. Trans. Am. Ent. Soc. i, p. 309. lobatus , Prov. Nat. Can. vii, p. 77, £ . Uab. — Can., N. H., Mass., N. Y., Ct., Pa., Del., Va., Ga. This seems very closely allied to W-aWum $ , which is however larger, with broader head and has the clypeus concave ; the abdomen of duplicatus is never varied with black or fuscous beyond first segment ; the posterior legs :u-e sometimes entirely black except base of tibia; which is yellowish. Length £ .45 — .53 inch. This is probably the % of funestus. 172. annulatus. Mesostenus annulatus , Prov. Nat. Can. vii, p. 265, % . llab. — Can., Mass. A slender species with black head and thorax, and ferruginous legs and abdomen; face scutellum and annulus on posterior tibiae pale yellowish ; tips of posterior femora, remainder of their tibiae and their tarsi black ; antennae black above with narrow pale annulus, beneath fulvous; wings subhyaline; abdomen sometimes fuscous at tip, second segment sparsely punctured and subdepressed at base, gastrocoeli obsolete, first segment black, ferruginous at tip. Length % .45 inch. This is closely allied to duplicatus. 173. signatipes, Cress. Trans. Am. Ent. Soc. i, p. 308, 9 . Hah. — Can., N. II., Mass., Pa. A robust ferruginous species, with head and thorax more or less black ; annulus on antennae, scutellum and annulus on tibiae yellowish ; wings subhyaline ; tips of posterior femora and tips of tibiae black, femora robust; antennae with short thick-set joints. Length 9 .40 — .45 inch. 174. annulipes, Cress. Proc. Ent. Soc. Phil, iii, p. 170, 9 . pusillus , Cress, id. p. 171, 9 . Hub. — Can., N. II., Mass., Del., Va. A miniature of signatipes with the basal joints of flagellum more elongate; pusillus is nothing but a pale variety. Length 9 .20 — .30 inch. 175. scitulus, Cress. Trans. Am. Ent. Soc. i, p. 310. Ischnus scitulus , Cress. Proc. Ent. Soc. Phil, iii, p. 193, % . Hub. — Can., N. II., Mass., Ct., N. Y., Va., Ill. A small and varia¬ ble species, with black head and thorax, and fulvous or honey-yellow abdomen sometimes more or less varied with dusky ; mesothorax often AMERICAN IIYMENOPTERA. 181 ferruginous; face, orbits, scutellum, pleura, generally two spots on metathorax behind, and legs except posterior femora aud tips of their tibiae, pale yellowish ; antennae long, black above, with more or less distinct pale annulus, beneath pale. Length % .25 — .35 inch. 17(5. libens, n. sp. % . — Small, shining, fulvo-ferruginous, vertex, occiput, pro- and mesothorax black; antennae blackish above, fulvous beneath; head beneath antennae, orbits broad on cheeks, collar, margins of prothorax, sometimes two short lines on disc of mesothorax, tegulas, line beneath, seutellums, most of pleura, two spots on metathorax behind and all the coxae, white or yellowish-white; wings hyaline, iridescent; mesothorax sometimes more or less black. Length .25 — .30 inch. Ilab.—N. Y., N. J., Ill. 177. seminiger, Cress. Proc. Ent. Soc. Phil, iii, p. 107, 9. Ilab. — Can., Mass., N. Y., N. J., Pa., Va., Ill. A robust ferrugin¬ ous species, with metathorax, pleura and basal margin of abdominal segments three and four more or less black; antennae robust, with pale annulus; scutellum yellowish; wings pale fusco-hyaline ; legs ferruginous with coxae, trochanters aud sometimes tips of posterior femora within, black. Length 9 .45 inch. 178. flebilis, n. sp. 9. — Subrobust, dull ferruginous; pleura, flanks of metathorax, and posterior coxse and trochanters, black; antennae rather slender, with white annulus, basal joints of flagellum elongate, first joint of which is much longer than second, before annulus the joints are ferruginous, beyond black; mesothorax aud scutellum shining, finely punctured; wings subhyaline; legs slender, tips of posterior tibiae and their tarsi dusky; abdomen with second and third segments closely punctured, apical segments smooth and polished, postpetiole aciculated, gastrocoeli small, moderately deep. Length .47 inch. Ilab. — Canada. 179. sequax, Cress. Proc. Cal. Acad. 1877. Ilab. — Vancouver’s Island. Resembles flebilis , but the flagellum is entirely black. Length 9 .47 inch. 180. hiemalus, Cress. Proc. Cal. Acad. 1877. Ilab. — Aleutian Islands. A small ferruginous species with black metathorax aud pleura; antennae pale ferruginous, apical joints black ; wings subhyaline. Length 9 .30 inch. 181. subfulvus, Cress. Proc. Ent. Soc. Phil, iv, p. 258, 9. Ilab. — Colorado. A rather small, pale ferruginous, shining species with long and slender antennae, strongly attenuated at tips; apical margins of abdominal segments two to five narrowly black ; wings ubhyaline. Length 9 .35 — .40 inch. 182 E. T. CRESSON. 182. cestus, Cress. Proc. Cal. Acad. 1877. JIab. — Vancouver’s Island. A subrobust ferruginous species with broad black band at base of third abdominal segment; antenna: dusky at tips; wings yellowish, subfasciate with fuscous before stigma. Length 9 -40 inch. 183. vicinus, Cress. Proc. Ent. Soc. Phil, iii, p. 169, 9- Ilab. — Illinois. A subrobust ferruginous species, with tips of an¬ tennae, tips of posterior femora and of their tibiae, and narrow basal margin of abdominal segments three and four, black ; scutellum yel¬ lowish ; antennae short, with white annulus, basal joints ferrugiuous, joints beyond annulus subdilated ; wiugs subhyaline. Length 9 .40 inch. 184. brevipennis, Cress. Proc. Ent. Soc. Phil, iii, p. 174, 9 . var. obsoletus , Riley, 9th. Mo. Rep. p. 55. Ilab. — Can., Pa., Col. A short robust dull ferruginous species, with dusky wings and basal margins of abdominal segments narrowly black ; antennae robust with short thick-set joints, apex dusky or black; the type from Colorado has shortened wings, and in the variety obsoletus the black bauds on abdomen are obsolete. Length 9 .40 — .45 inch. This is a parasite on Leucania albilinea. 185. longulus, Cress. Proc. Ent. Soc. Phil, iii, p. 171, S . Ilab. — Can., Col., N. Mex., Cal., Van. An elongate fulvo-ferrugin- ous species, with antennae, sutures of thorax, generally the pleura be¬ neath, tips of posterior tibiae, and basal margin of abdominal segments, more or less black; wings yellowish-hyaline; face, scape beneath, scu¬ tellum and legs in front yellowish ; postpetiole minutely aciculated, gastrocoeli rather deep. Length h .50 — .60 inch. 186. volens. Tschnus volens, Cress. Proc. Ent. Soc. Phil, iii, p. 192, S . Hub. — Can., N. Y., Va., Ga., Ill. Closely resembles longulus , but separated at once by the smooth polished postpetiole and subobsolete gastrocoeli; the antennae are dusky above and pale beneath, with a more or less distinct pale yellowish annulus; the four anterior coxae and trochanters are whitish; wings hyaline. Length % .55 — .60 inch. 187. propitius, Cress. Trans. Am. Ent. Soc. iv, p. 156, S . Ilab. — Texas, (coll, llelfrage). Yellowish-ferruginous; face, clypeus, anterior orbits and mandibles, pale yellow ; antennae pale ferruginous AMERICAN II YMENOFTERA. 183 beneath, blackish above, with broad yellowish-white annulus above middle; prothorax blackish anteriorly, the anterior margin pale yel¬ low; margins and sutures of thorax blackish, as well as scutellar region and pleura centrally beneath; scutellum yellow; metathorax blackish at tip; wings hyaline; four anterior coxae yellowish beneath; apices of posterior pair, tips of their femora, apical half of their tibiae and tips of their tarsi black, basal half of their tibiae yellow; abdomen opaque, base of first segment and apical margins of second and third segments black and shining. Length £ .30 inch. 188. disparilis, Cress. Trans. Am. Eut. Soc. i, p. 307, 9 • Hub. — Connecticut. Dull ferruginous, with antennae, tips of pos¬ terior femora, and disc of second and third abdominal segments black; abdomen short, robust, with pale annulus, the joints beyond strongly compressed and dilated ; orbits, scutellum and four anterior coxae whitish; wings clear; abdomen strongly narrowed to base, closely punctured. Length 9 .43 inch. 189. russatus, Cress. Proc. Cal. Acad. 1877, 9 . Hub. — Vancouver’s Island. Entirely ferruginous, except sutures of thorax and tips of antennae which are blackish ; joints of antennae short and thick-set; wings subhyaline; three basal segments of abdomen very densely sculptured, postpetiole flat. Length 9 •40 inch. 190. semissis, Cress. Proc. Cal. Acad. 1877, 9 . Hub. — California. Entirely ferruginous, with slender antennae and yellowish wings. Length 9 -45 inch. 191. scibilis, n. sp. — Elongate, narrow, subeylindrical, ferruginous, thorax shining; face, clypeus, scape beneath, tegulse, scutellum, and four anterior coxae and tro¬ chanters yellow; antennae slender, dusky at tips; sutures of thorax, pleura beneath, lateral regions of scutellum, and tips of posterior femora and of their tibiae, black ; wings subhyaline; legs slender; postpetiole narrow, shining, very minutely aciculated, gastrocoeli subobsolete. Length .45 inch. Hub. — Illinois. 192. mucronatus, Prov. Nat. Can. vii, p. 81, £ . Hub. — Can., Va. A rather small, pale ferruginous species, with subclavate abdomen, and easily recognized by the two acute spines on metathorax ; the antennae above, lateral regions of scutellum, pos¬ terior trochanters, extreme tips of their femora, tips of their tibia), and their tarsi, black ; face, clypeus, annulus on antenna), scutellum and four anterior coxae and trochanters, pale yellow; wings clear; abdomen finely not closely punctured, slender at base, postpetiole nar¬ row, polished, gastrocoeli obsolete. Length £ .49 — .45 inch. 184 E. T. CRESSON. 193. proximus. PhygadeuQn proximus, Prov. Nat. Can. vi, p. 283, 9 . Ilab. — Can., N. H. A small ferruginous species, with yellowish scutellum anti spot on tip of abdomen ; antennae robust, black, with pale annulus; abdomen smooth and impunctured ; wings subhyaline; legs robust, posterior femora and tips of their tibiae, also sutures of thorax, black. Length 9 .35 inch. 194. nanus, n. sp. 9- — Small, subrobust, ferruginous, back of bead and thorax more or less varied with black; antennae stout, with short thick-set joints, black, with white annulus, the joints beyond middle thickened; line on collar, tegulse, sometimes a spot in front and line beneath, four anterior coxae and all the tro¬ chanters, pale yellowish ; wings hyaline; legs robust, tijos of posterior femora more or less, tips of their tibiae and sometimes their coxae above, black; occasionally the posterior femora are entirely black, the tibiae and tarsi are yellowish-ferruginous; abdomen entirely ferruginous, postpetiole indistinctly sculptured. Length .25 inch. Hal. — Can., N. Y., N. J., Va., N. C., Ill. This is one of our smallest species, nearly allied to annulipes ; the thorax varies much in color. 195. rubicundus, Cress. Proc. Ent. Soc. Phil, iii, p. 170, 9 . . Hah. — Can.. Ill., Tex. A small, subrobust, opaque ferruginous species, with the mesothorax and second abdominal segment strongly punctured; wings subhyaline; antennae of 9 with a whitish annulus, that of % entirely ferruginous ; abdomen densely sculptured ; the lateral angles of metathorax are prominent spiniform, quite acute in the £ . Length $ 9 .30 — .33 inch. 196. residuus, Say, Contrib. Macl. Lyc. i, p. 73. Hub. — Mass., Pa., Md. A small robust pale ferruginous species, with clear wings, readily recognized by the broad, very short clypeus the apical margin of which is broadly arcuated, exposing most of the mentum ; the antennae are short, with thick-set joints, middle joints yellowish and apical ones blackish; legs short and robust; abdomen short, finely punctured, gastrocoeli obsolete, postpetiole sparsely punc¬ tured. Length 9 .30 inch. 197. facetus, Cress. Trans. Am. Ent. Soc. i, p. 311, % . Hah. — W. Va., Ill. A small slender pale fulvous species, with the vertex, occiput, antennae and mesothorax more or less, black ; remainder of head, broad annulus on antennae, most of prothorax, scutellum, pleura and four anterior coxae and trochanters, white; antennae long, pale at base beneath; wings hyaline, iridescent; post- AMERICAN HYMENOPTERA. 185 petiole smooth and polished, gastrocoeli obsolete; the mesothorax is generally mostly fulvous. Length % .32 — .36 inch. 198. soror, Cress. Proc. Ent. Soc. Phil, iii, p. 185, 9 . Hub. — Can., Mass., N. Y,, Ill. Same size and color as residuus , but with the clypeus of usual shape, the apical margin not arcuated, and the apical segment of the abdomen has a more or less distinct yellow spot. 199. utilis, Cress. Trans. Am. Ent. Soc. i, p. 311, % . . Hub. — Mass., Ct., N. Y. This is a small fulvous species, with short broad face, orbits, tegulae, line before, scutellum and four anterior coxae aud trochanters, pale yellow; antennae fuscous above, without pale annulus; wings clear, iridescent. Length S .30 — .35 inch. This is probably the £ of soror. 200. petulcus, Cress. Proc. Cal. Acad. 1877, 9 . Hub. — California. Closely allied to soror but with the antennae entirely ferruginous, and the apical segment of abdomen without yellowish spot. Length 9 -26 inch. 201. ? rutilus, Cress. Proc. Ent. Soc. Phil, iii, p. 169, 9 . Hub. — Virginia. A ferruginous species, the antennae long, slender, black, with white annulus on flagellum; mouth, sutures of thorax, scutellar region, tips of posterior tibiae and base of their tarsi black, remainder of their tarsi and scutellum white; wings clear; meta¬ thorax with two prominent tubercles. Length 9 -12 inch. This looks much like a Cryptus the ovipositor being longer than is usual in Ichneumon ; it seems intermediate between the latter aud IlopHsmenus. IE O l» M SHIMS. Grav. Body black, immaculate. Legs black and yellow. Posterior tibiae fuscous . ]. (luvifai'Nis. Posterior tibiae and tarsi entirely bright yellow. . 2. moi*u9il$. Legs fulvous or ferruginous . 3. psirificms. Body black; segments 1 — 3 of abdomen and femora ferruginous; scutellum and tarsi white . 4. scutellatns. 1. flavitarsis. Trucjus Jiavitnrsis , Cress. Proc. Ent. Soc. Phil, iv, p. 264, % . Hub. — Colorado. Slender, black ; face, clypeus and tips of tarsi white; four anterior tibite and base of tarsi yellowish ; four anterior femora, posterior tibiae aud basal joint of their tarsi fuscous; wings uniformly fuliginous. Length % .53 inch. TRANS. AMER. ENT. SOC. VI. (25) july, 1877. 186 E. T. CRESSON. 2. morulus. Ichneumon morulus , Say, Contrib. Macl. Lyc. i, p. 73. Ichneumon calcaratus, Prov. Nat. Can. vii, p. 49, % . Hah. — Can., Ct., N. Y., N. J., Ya. Black; face, clypeus, scape be¬ neath, and sometimes spot on scutellutn $ , and annulus on flagellum 9 , white or pale yellowish ; tibiae and tarsi bright yellow ; wings uniformly fuliginous. Length % 9 .60 — .65 inch. 3. pacificus, Cress. Proc. Cal. Acad. Nat. Sci. 1877. Hah. — Vancouver’s Island. Black ; annulus on flagellum 9 > and sides of face $ , white; clypeus and scape beneath S , and legs % 9, fulvous; tips of posterior tibiae and base of their tarsi 9 , blackish ; wings uniformly fuliginous, with a strong violaceous reflection. Length Z 9 .56 — .70 inch. 4. scutellatus. Ichneumon scutellatus, Prov. Nat. Can. vii, p. 78, % . Hah. — Canada. Black ; face, clypeus, spot on scape beneath, annu¬ lus on flagellum, scutellum and tarsi white; segments one to three of abdomen, and femora except tips of posterior pair, ferruginous; wings hyaline ; scutellum elevated into a transverse subacute edge. Length $ .45 inch. Ichneumonides amblypygi. Scutellum flat or convex . AMBLYTELES. Scutellum strongly elevated, subpyramidal . TROGUS. AM YTELES, Wesm. The following table will readily distinguish the species. FEMALES. Metathorax without spines. Abdomen black or blue. Posterior legs black or blue, their tibiae immaculate. Apex of abdomen immaculate; scutellum black or blue. Body black . 1. excultus. Body dark steel-blue . 2. montaiius. Apex of abdomen marked with white; scutellum pale . 3. tetricus. Posterior legs black, their tibiae with white annulus... 5. perluctuosus. Posterior legs black, their femora ferruginous . 9. mormomis. Posterior legs ferruginous, tips of tibiae and tarsi black. Abdomen fusiform . 10. Ormeiius. Abdomen narrow, slender . 11. Belangeri. Abdomen black, with a broad yellow band at base of second and third seg¬ ments . 14. bllasciatus. Abdomen black, segments 2 and 3 ferruginous, yellowish at base; apex of 4 and following segments narrowly yellowish . 15. robustus. AMERICAN HYMENOPTERA. 187 Abdomen black and ferruginous. Apex of abdomen black. Scutellum black; posterior legs entirely black; abdominal segments two and three entirely ferruginous . 17. riifizouatus. Scutellum pale; posterior legs black, base of tibiae ferruginous. Antennae with short, thick-set joints; abdominal segments 2 and 3 entirely ferruginous, apieal segments immaculate . 19. Taos. Antennae with basal joints of flagellum elongate, cylindrical; abdomi¬ nal segments two to four and apex of one, ferruginous, apical segments with pale spots . 21. Xortoni. Apex of abdomen ferruginous. Head and thorax black or blue. Posterior legs entirely black. Postpetiole aciculated; joint 3 of antennae much longer than 4. Thorax deep black . 22. detritus. Thorax steel-blue . 23. semieieriilcus. Postpetiole scabrous; third and fourth joints of antennae equal in length . 24. iudistinctus. Posterior legs more or less ferruginous. Wings fuliginous; scutellum flat, entirely black; antennae without pale annulus . 25. litidsoniens. Wings hyaline; scutellum convex, with white spot; antennae with pale annulus . 28. coloradensis. Head and thorax more or less ferruginous. Abdomen broad, fusiform. Antennae with basal joints of flagellum (except first which is twice longer than broad), quadrate or moniliform; thorax beneath and metathorax generally black; abdomen generally entirely ferruginous except base of first and occasionally base of two or three following segments . . . 29. suhruiiis. Antennae with basal joints of flagellum (except first which is three times longer than broad), scarcely twice longer than broad; thorax generally ferruginous with black sutures; abdominal seg¬ ments generally more or less black at base . 30. suturalis. Antennae with basal joints of flagellum long, cylindrical, more than twice longer than broad . 31. subl'iiMCUs. Abdomen narrow, subcompressed at tip. Antennae with pale annulus . 32. ancops. Antennae without pale annulus . . . 33. liiiileus. Metathorax with two prominent spines; thorax black and white; legs fer¬ ruginous; antennae long, black with broad white annulus. Abdomen black, apical margin of segments white . 34. ? concimius. Abdomen ferruginous, with pale spot at sides of three basal segments. 35. ? ornatus. MALES. Abdomen black or blue, immaculate above. Legs black or blue and white. Scutellum and entire body blue-black . 2. montaiiiis. Scutellum pale. Face entirely black . 6. expunctus. 188 E. T. CRESSON. Face more or less white. Abdomen black, the second segment not more coarsely sculptured at base . 7. nltus. Abdomen blue-black, the second segment coarsely and longitudinally rugose on basal middle . 8. stadiiconensis. Legs honey-yellow. Face, posterior tibife and their tarsi black . 12. illietabilis. Face yellow; posterior coxae, tips of their tibiae and their tarsi more or less black . 13. ltictus. Abdomen black, the two or three apical segments more or less marked with white . 4. improvisus. Abdomen black, apical margin of all the segments white... 34. ? conciituus. Abdomen black, segments 2, 3 and sometimes base of 4 more or less ferruginous. Scutellum black; posterior legs entirely black; abdominal segments two and three entirely pale ferruginous . 16. magnus. Scutellum pale. Posterior legs honey-yellow, coxae black; abdominal segments 2 and 3, sometimes only 3 at base, ferruginous . 18. quebeceusis. Posterior legs black, coxae, tibiae and tarsi varied with white. ..20. electus. Abdomen ferruginous, basal segment only sometimes black. Scutellum black . 26. fraterims. Scutellum pale yellow or white . 27. nubivagiis. All the species of this subgeuus, given below, were originally de¬ scribed as belonging to Ichneumon proper, except Nos. 3, 5 and 35. 1. excultus, Cress. Trans. Am. Ent. Soc. i, p. 293, 9 . Hah. — Can., N. H., Mass., N. J. A deep black, shining, immacu¬ late species, with apex of abdomen smooth and polished, the wings pale fuliginous, and the antennae with broad white annulus. Length 9 .55 — .60 inch. 2. montanus, Cress. Proc. Ent. Soc. Phil, iii, p. 141, % 9 • llah. — H. B. T., Can., Mass., Ya., Col., Cal. A dark steel-blue, immaculate species, with dusky wings; the antennae of 9 have a broad white annulus, while in the % they are entirely black. The blue color of the 9 is much brighter than in the % which is opaque. Length £ 9 .50 — .60 inch. Out of eleven S specimens, nine have the longitudiual ventral fold entire on segments two, three and four; the other two specimens have it only on two and three. 3. tetricus, Prov. Nat. Can. ix, p. 10, 9 . Hah. — Canada. A robust deep black species, with annulus on antennae, scutellum and apex of two or three apical segments, white; wings fuscous. Length 9 -55 — .62 inch. AMERICAN HYMENOPTERA. 189 4. improvisus, Cress. Trans. Am. Ent. Soc. i, p. 296, £ . llab. — Can., N. J. A dull black species, with white annulus on antennae, and the two or three apical segments of abdomen marked with white; the face except median black stripe, scutellum, most of four anterior tibiae and tarsi and base of posterior tibiae, are also white; wings dusky; the second and third ventral segments have generally a distinct longitudinal fold, which sometimes extends on half of fourth segment. Length £ .60 — .65 inch. This is probably the £ of tetricus. 5. perluctuosus, Prov. Nat. Can. ix, p. 10, 9 (not £ ). Hub. — Can., N. H., Van. Au elongate, rather narrow, deep black species, with slender antenuae, subhyaline wings, and lateral margin of face, broad annulus on antennas, line before tegulaj, short one beneath, scutellum and annulus on all the tibiae, white. Length 9 .55 — .60 inch. 6. expunctus, Cress. Trans. Am. Ent. Soc. i, p. 290. obliterates, Cress, (nec Wesm.') Proc. Ent. Soc. Phil, iii, p. 147, £ . Hub. — Colorado. This is a deep black species, with dot on tegulae, a short line in front, another beneath, scutellum, line on whole length of four anterior tibiae and short line at base of posterior tibiae, white; wings dusky at tips; head and antennae entirely black; an imper¬ fectly formed longitudinal fold on second ventral segment. Length £ .55 inch. 7. ultus, Cress. Trans. Am. Ent. Soc. i, p. 295, £ . var. rogalis , Cress, id. p. 295, £ . Hub. — Can., N. Y., Ct., W. Va. A dull black species, with face and clypeus more or less, scape beneath, tegulae, short line in front, another beneath, scutellum, spot behind, all the coxae more or less, stripe on four anterior femora within, knees, their tibiae and tarsi and posterior tibiae except tips, white; wings hyaline; sometimes the pos¬ terior tarsi are more or less white and one specimen has the posterior tibiae entirely black except a short white line near base; ventral segments flat, smooth and polished, in oue specimen ouly the second and third segments have each a longitudinal fold. Length £ .60 — .70 inch. 8. stadaconensis, Prov. Nat. Can. vii, p. 50, £ . Ilab. — Can., N. II., Mass. This differs from ultus principally by the abdomen being strongly tinged with blue, the second and third segments of which are coarsely and longitudinally sculptured at base; 190 E. T. CRESSON. the posterior coxae are entirely black ; the second and third ventral segments have each a longitudinal fold. Length £ .55 — .GO inch. 9. mormonus, Ciess. Proc. Cal. Acad. 1877, 9 . Hab. — Utah. A robust, dull black, immaculate species, with slender entirely black antennae; wings fuliginous; four anterior legs, except coxae and trochanters, and posterior femora ferruginous; the posterior tibiae are thickened at tips and their tarsi short and robust. Length 9 .46 inch. 10. Ormenus, Cress. Proc. Ent. Soc. Phil, iii, p. 141, 9. Hub. — Can., Mass., Pa., Col. A deep black immaculate species with ferruginous legs and subhyaline wings; the antennae are entirely black; apex of abdomen smooth and polished; the coxae, often the trochanters, tips of posterior tibiae and their tarsi entirely, are black ; abdomen fusiform. Length 9 .55 inch. 11. Belangeri, n. sp. 9. — Long and slender, deep black, immaculate, apex of abdomen smooth and polished; legs, except coxa?, tips of posterior ti bise, and their tarsi en¬ tirely, black; antennae slender, with joints nine to fifteen pale beneath; wings yellowish-hyaline; abdomen very narrow, acuminate and subcompressed at tip. Length .56 inch. Hab. — Canada. (Belanger). This is colored exactly like Ormenus , but the abdomen is not more than half the width and the antennae are more slender. It probably belongs to Wesmael’s subgenus Limerodes. 12. illaetabilis, n. sp. % . — Black, shining; spot beneath tegulse, scutellum and spot behind whitish; wings faintly dusky; legs ferruginous; posterior knees, their tibiae and tarsi, black ; postpetiole and second segment coarsely rugose, apical seg¬ ments shining and subcompressed; ventral segments without longitudinal fold. Length .55 inch. Hab. — Georgia. (Morrison). 13. luctus, Cress. Proc. Ent. Soc. Phil, iv, p. 250. tenebrosus , Cress, (nec IFesm.) Proc. Ent. Soc. Phil, iii, p. 145, £ . melhpes, Cress. Trans. Am. Ent. Soc. i, p. 295, £ . Hab. — Can., N. H., Col. A black species with honey-yellow or pale ferruginous legs, except coxae which are black ; face, scape beneath and scutellum, yellow ; wings yellow-hyaline ; second and third ventral segments generally honey-yellow. Length £ .55 — ,G5 inch. 14. bifasciatus, Prov. Nat. Can. vii, p. 75, 9 . Ilab. — Canada. A shining black species, with annulus on antennae, scutellum, basal half of tibiae, broad band at base of second and third AMERICAN HYMENOPTERA. 101 abdominal segments, and spot on two apical segments yellowish-white; wings subhyaline. Length 9 -50 inch. 15. robustus, Cress. Trans. Am. Eut. Soc. i, p. 298, 9 . Sab. — Canada. A rather large, robust black species, easily recog¬ nized by the second and third segments of abdomen being ferruginous, yellowish at base; sides of face, annulus on antennae, scutellum, most of tibiae and narrow apical margins of fourth and following segments of abdomen dull yellowish ; antennae slender ; wings yellowish-hyaline. Length 9 .63 inch. 1G. magnus, Cress. Proc. Ent. Soc. Phil, iii, p. 258, $ . II ah. — Colorado. This is a large black species, with second and third abdominal segments entirely pale ferruginous; wings fuscous; ventral segments destitute of longitudinal fold. Length £ .90 inch. 17. rufizonatus, Cress. Proc. Ent. Soc. Phil, iii, p. 183, 9 . marianapolitanensis , Prov. Nat. Can. vii, p. 81, 9 . Halt. — Can., N. J. This is a deep black species with second and third segments of abdomen entirely ferruginous; the antennae have each a narrow pale annulus; wings subhyaline. Length 9 .57 inch. 18. quebecensis, Prov. Nat. Can. vii, p. 77, $ .. Sab. — Can., Col. A black species, with legs, except coxae, and second and third abdominal segments more or less ferruginous; face and scutellum yellow; wings subhyaline; the specimen from Colorado has the abdomen entirely black except a ferruginous band at base of third segment; the second and third ventral segments are yellowish and have each a more or less distinct longitudinal fold. Length £ .GO inch. 10. Taos, n. sp. 9- — Shining black; upper anterior orbits, spot on middle of face, mandibles, tegulae, abdominal segments two and three, ferruginous ; face short; antennte subrobust, with short thick-set joints, seven to fourteen pale yellowish; scu¬ tellum flat, pale yellowish; wings pale fusco-hyaline; legs robust, four anterior knees, tibise and tarsi, posterior tibiae except tips and their tarsi, pale ferrugin¬ ous; abdomen finely punctured, apical segments smooth and polished, post¬ petiole rather broad, smooth, gastrocoeli obsolete. Length .47 inch. Sab. — New Mexico. 20. electus, Cress. Trans. Am. Ent. Soc. i, p. 30-1, £ . nitidus, Prov. Nat. Can. vii, p. 70, £ . Sab. — Can., Ct. This is black, with second, third and base of fourth abdominal segments ferruginous; face, scape beneath, tegulae, 192 E. T. CRESSON. line before, one beneath, scutellum, spot behind, spot on disc of meta¬ thorax, spot on all the cox®, four anterior legs mostly, posterior tibiae except tips, and sometimes their tarsi entirely, whitish; wings clear; the second and sometimes the third ventral segments have a longi¬ tudinal fold. Length £ .GO inch. 21. Nortoni, Cress. Trans. Am. Ent. Soc. i, p. 304, 9 . Hab. — Connecticut. A rather slender black species, with abdomi¬ nal segments two to four entirely, and apex of one, ferruginous; dot on each side of ocelli, annulus on antennae, scutellum and two spots at tip of abdomen, yellowish-white ; wings hyaline; antennae and legs slender; head broader than usual. Length 9 -45 inch. 22. detritus, Bridle, Hym. p. 302. Si/phax, Cress. Proc. Ent. Soc. Phil, iii, p. 181, 9 . Hah. — Can., Me., Mass., N. Y., Pa., N. J., Del. This is a black species, with the abdomen, except first segment, ferruginous; the antennae are slender, with a broad white annulus on each, the third joint is longer than the fourth; the wings vary from subhyaline to dark fuliginous; the scutellum has occasionally a white spot; post¬ petiole finely aciculated. Length 9 .50 — .60 inch. 23. semicaeruleus, Cress. Trans. Am. Ent Soc. i, p. 302, 9 . Hub. — Can., N. II., W. Ya. Distinguished at once from detritus by the beautiful steel-blue head and thorax and clear wings; the scutellum is more or less white. Length 9 .50 inch. 24. indistinctus, Prov. Nat. Can. vii, p. 75, 9 . Hab. — Can., N. II., Mass., Ga. This is colored exactly like detritus, but is easily separated by the scabrous postpetiole, and by the third and fourth joints of antennae being equal in length; the scutellum has frequently a pale spot. Length 9 -50 — .55 inch. 25. hudsonicus, n. sp. 9 . — Black ; anterior orbits, broad on face, mandibles, scape beneath, tegulse, legs except coxae and base of trochanters, and abdomen except first segment, ferruginous; wings fuliginous; third joint of antennae longer than fourth ; post¬ petiole finely aciculated ; gastrocoeli small, foveiform. Length .52 inch. Hab. — Hudsons Bay Territory. 26. fraternus, n. sp. £ . — Black ; face, clypeus, scape beneath, four anterior legs except coxae, trochanters and their femora behind, posterior tibiae except tips, and their tarsi, yellow; wings yellowish-hyaline; abdomen except first segment fer¬ ruginous. Length .70 inch. Hab. — Mass., Va. V ery much like nubivayus , but at once sepa¬ rated by the black scutellum. AMERICAN HYMENOPTERA. 193 27. nubivagus, Cress. consimilis , Cress, (nec IFe.sm.) Proc. Ent. Soc. Phil, iii, p. 1G3, % . var .juxta, Cress. Proc. Ent. Soc. Phil, iii, p. 1G3, $ . sequn/is, Prov. Nat. Can. vii, p. 76, S . Bab. — Can., Me., Mass., Pa., Va., Col. Black, with abdomen ex¬ cept first segment, ferruginous; face, scape beneath, tegulae and scu- tellum pale yellowish ; four anterior legs, posterior tibiae except tips, and their tarsi yellowish ; the var. juxta has the first segment of abdomen entirely ferruginous. Length % .60 — .70 inch. 28. coloradensis, n. sp. 9- — Small, black; narrow anterior orbits, short line behind summit of eyes, interrupted annulus on antennae, line before tegulse, short line beneath, and spot at apex of abdomen, white; wings hyaline; legs ferruginous, eoxce, tro¬ chanters, base of four anterior femora, tips of posterior tibiae and their tarsi, black; abdomen ferruginous, finely punctured, shining, postpetiole with a dis¬ tinct medial fovea, gastrocoeli small, foveiforrn. Length .32 inch. Ilab. — Colorado. 29. subrufus, Cress. Proc. Ent. Soc. Phil, iii, p. 1G8, 9 . Ilab. — Cam, Me., Mass., N. Y., Va., Ill. A robust, pale ferrugin¬ ous species, with pleura and metathorax more or less black ; scutellum pale yellowish; antennae short, stout, with short thick-set joints, apex black middle joints more or less pale; wings pale fusco-hyaline; post¬ petiole finely aciculated, gastrocoeli small, foveiform. Length 9 .50 — .55 inch. 30. suturalis, Say, Bost. Jour. Nat. Hist, i, p. 226. propinquus , Cress. Proc. Ent. Soc. Phil, iii, p. 172, 9 . Bab. — Can., Mass., N. Y., N. J., Pa., Del., Va., Ill., Col., N. M., Utah, Dac. A robust ferruginous species, with thoracic sutures and basal margins of abdominal segments more or less black; wings pale fusco-hyaline; antennae ferruginous at base, black at tips and more or lesjs yellowish in middle. Length 9 .45 — .55 inch. Quite a common species. The last ventral segment varies much in length, sometimes appearing small and at other times quite large. 31. subfuscus, Cress.. Proc. Ent. Soc. Phil, iii, p. 173, 9. Bab. — Col., Nev., Cal. Very closely allied to suturalis, but easily distinguished by the long slender antennae, with basal joints of flagellum long and cylindrical ; the black bands on base of abdominal segments are sometimes subobsolete. Length 9 .50 inch. 32. anceps, Cress. Trans. Am. Ent. Soc. i, p. 309, $ 9 . Bab. — Ct., Del. A long slender, shiniug, pale ferruginous species, with yellowish hyaline wings, and yellow scutellum; flagellum fuscous TBANS. AMEU. ENT. SOC. VI. (26) jcly, 1877. 194 E. T. CRESSON. with broacl yellowish annulus; sutures of thorax, tips of posterior femora and of their tibiae, and sometimes the base and tip of apical segments of abdomen, black; abdomen narrow, polished, subcom¬ pressed at tip. Length 9 -55 inch. This and the next species seem to belong to Wesmael’s subgenus Limerodes. 33. hiulcus, Cress. Proc. Cal. Acad. 1877, 9 • Ilab. — British Columbia. Same form and appearance as anceps , but the flagellum is without a pale annulus, being ferruginous with blackish tip. Length 9 -48 inch. 34. ? concinnus, Say, Contrib. Macl. Lyc. i, p. 68 % (not 9 ). Ilab. — N. C., Ill. A slender black species with very large buccate head, long antennae aud bispinose metathorax; the head, thorax and abdomen are marked with white; wings clear; legs slender and honey- yellow ; the antennae which are thickened at tips, have each a broad whitish annulus beyond the middle; scutellum raised, but not gibbose, sides strongly carinate. Length % 9 -42 iuch. This species and the next ( ornatus ) will probably form a new genus, being intermediate between HopHsmenus and Amblyteles. The speci¬ mens before me agree precisely with Say’s description of I. concinnus, except that of his 9 , which is evidently a Cryptus , the ovipositor be¬ ing nearly half the length of the abdomen. 35. ? ornatus. HopHsmenus ornatus , Cress. Trans. Am. Ent. Soc. ii, p. 92, 9 • Hab. — New York. Head aud thorax black, elaborately ornamented with white; scape, legs and abdomen ferruginous; antennae long, slender, flagellum black with a broad white annulus; metathorax with two sharp spines ; wings clear. Length 9 .35 inch. This is not an HopHsmenus as defined by Wesmael, the scutellum being flat, and the last ventral segmeut is not retracted. T250GUS, Grav. g. — Abdomen flattened above, the segments strongly constricted at base ; head nar¬ rowed beneath, cheeks flat. Body entirely black; tibiae and tarsi yellow . 1. fulvipes. Body black and ferruginous, fulvous or yellow. Thorax more or less black. Wings dark fuliginous; abdominal segments two to five with discal black spot . 2. Edwardsii. Wings and abdomen yellow . 4. Havipcnnis. Thorax entirely ferruginous; abdomen ferruginous, black at tip; wings yellow, with two broad black bands . 3. fascipennis. Body entirely fulvo-ferrugiuous ; wings dark fuliginous . 5. exesorius. AMERICAN IIYMENOPTERA. 195 — Abdomen convex or subconvex, i he segments not unusually constricted at base ; head more or less buccate. Body and wings Wwe-black, immaculate; antennae black...6. atrocrcrulens. Body black, immaculate. Wings uniformly dark fuliginous; antennae orange-yellow. Postpetiole elevated and subpyramidal before apex . 8. Brullei. Postpetiole not elevated, bicarinate before apex . 7. obsiriiunator. Wings yellow, smoky on apical margins; antennae black; postpetiole not elevated before apex . 9. marginipenuis. Body black, more or less marked with fulvous or ferruginous. Abdomen entirely black ; head, pro- and mesothorax, and sometimes scu- tellum and disk of metathorax fulvo-ferruginous...l2. »us< riiius. Abdomen black, second segment with broad ferruginous band. ..10. atrox. Abdomen black, apical half fulvo-ferruginous . 11. apicalis. Abdomen black, basal segments more or less fulvo-ferruginous. Wings fuliginous. Thorax black beneath . 14. occidentalis. Thorax entirely fulvo-ferruginous . 13. miMlipeimis. Wings yellow, apical margins fuliginous. Antennae yellow, black at tips . 15. quebecensis. Antennae black, scape yellow beneath . 16. Bolter!. Abdomen entirely ferrug'nous, except base of first segment. Posterior legs entirely black . 17. C'opei. Posterior tibiae and tarsi fulvo-ferruginous . 18. canadensis. Body entirely fulvous or ferruginous. Wings dark fuscous. Postpetiole elevated and subpyramidal before apex . 19. Rileyi. Postpetiole not elevated, rather depressed . 21. bnccatns. Wings yellow, apical margins smoky . 20. lncllosus. Wings yellow, a large spot at tip and triangular mark at apex of externo- medial cell, violaceous-black . 22. clegans. § 1. fulvipes, Cress. Trans. Am. Ent. Soc. ii, p. 93, £ . obsidianator , Prov. ( not Brulld) Nat. Can. vi, p. 335, £ . IIab. — Me., N. H. Black; labrum, knees, tibite and tarsi yellow ; wings fuliginous, with an mneous reflection; the £ has the anterior legs except coxae entirely yellow. Length £ 9 .GO — .65 iuch. 2. Edwardsii, Cress. Proc. Cal. Acad. Nat. Sci. 1877. IIab. — Vancouver’s Island. Black ; face, antennae beneath, tegulae, scutellum and abdomen, except black spot on disc of segments two to five, fulvo-ferruginous; legs yellow, coxae black; wings fuliginous, with an aeneous reflection. Length £ .72 inch. 3. fascipennis, n. sp. 9. — Ferruginous; antennae, posterior legs, except coxae and base of their tibiae, and two apical segments of abdomen, black; face, clypeus, scape be¬ neath, and basal third of posterior tibiae, yellowish; wings bright yellow, a broad band a little before the middle and a broader one at tip, blackish; 196 E. T. CRESSON. abdomen depressed, postpetiole and three following segments above coarsely, longitudinally aciculated. Length .70 inch. Hab. — Texas. (F. H. Strecker). Easily distinguished by the beautifully ornamented wings. 4. flavipennis, Cress. Proc. Ent. Soc. Phil, iii, p. 287. Ilab. — Colorado. Head, antennae except tips, teguke, scutellum, au- terior femora, and all the tibiae and tarsi, fulvo-ferruginous ; tips of antennae, thorax, coxae, posterior femora and first abdominal segment except tip, black ; wings yellow, apical margins smoky; abdomen yel¬ low, postpetiole and second segment fulvous. Length £ .70 inch. 5. exesorius, Brulle, Hym. p. 298. Hah. — Can., N. iT., Pa., Del., Ga., Ill. Entirely fulvo-ferruginous, legs paler, tibiae and tarsi golden-yellow; antennae sometimes dusky or black above ; wings uniformly fuliginous, with a strong aeneous or violaceous reflection. Length £ 9 -70 — .80 inch. This will probably prove to be the Ichneumon pennator, Fabr. Ent. Syst. ii, p. 155. §§ 6. atrocseruleus, Cress. Trans. Am. Ent. Soc. ii, p. 92, 9 . Hab. — Louisiana, (coll. Norton). Opaque blue-black, immaculate ; wings blackish fuliginous, with a brilliant violaceous reflection ; fourth and following segments of abdomen smooth and polished. Length 9 .80 inch. 7. obsidianator, Brulle, Ilym. p. 299. Hub. — Pa., Ill., Ga., Tex. Deep black, immaculate; antennae orange-yellow; wings uniformly blackish-fuliginous, with a strong aeneous reflection ; first abdominal segment bicarinate, the carinae becoming obsolete before reaching the tip. Length £ 9 .80 — .90 inch. 8. Brullei, n. sp. £ 9- — Differs from obsidianator principally by the first abdominal segment being strongly elevated and subpyramidal before apex; the anterior margin of clypeus is slightly produced in middle, while in obsidianator it is more or less concave, sometimes broadly emarginate; the abdominal segments are also more finely punctured. Length £ 9 -85 — 1.10 inch. Ilab. — Ct., Pa., Ga. 9. marginipennis, Cress. Trans. Am. Ent. Soc. ii, p. 93, £ . Hab. — Dakota Territory. Black, immaculate ; wings yellow, with apex broadly pale fuliginous; first abdominal segment not elevated before apex. Length £ .72 inch. AMERICAN IIYMENOPTERA. 197 10. atrox, Crcs9. Trans. Am. Ent. Soc. ii, p. 93, 9 . Hah. — Dakota Territory. Black, second abdominal segment with a broad transverse ferruginous spot; wings fuscous, stigma fulvous ; first abdominal segment not elevated before apex. Length 9 .62 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; seutellum obtusely elevated; abdomen subconvex, postpetiole coarsely punctured, disc not elevated. Length .75 inch. Ilab. — Georgia. (Morrison). 12. austrinus, Cress. Trans. Am. Ent. Soc. ii, p. 92, Z 9- Ilab. — Ga , Fla. Black; head, pro- and mesothorax, occasionally the seutellum and disc of metathorax, anterior legs and intermediate tibiae and tarsi, fulvous; antennae orange-yellow, sometimes dusky at tips; wings blackish-fuliginous, with a strong mneous reflection; first abdominal segment not elevated before apex. Length Z 9 .85 inch. 13. nubilipennis, Hald. Proc. Acad. Nat. Sci. Phil, iii, p. 127. Ilab. — 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. Leugth Z 9 -85 inch. 14. occidentalis, Cress. Trans. Am. Ent. Soc. ii, p. 93, Z . 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 Z .85 inch. 15. quebecensis, Prov. Nat. Can. vi, p. 335, 9 . Ilab. — Canada, (coll. Provancher). Large, pale fulvous; tips of antennae, three broad stripes on mesothorax, sides of thorax aud beneath, metathorax and fourth 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 strougly elevated and subpyramidal before apex. Length 1 inch. 1G. Bolteri, Cress. Trans. Am. Ent. ii, p. 94, £ . JIab. — Lake Superior, (coll. Bolter). Black ; face, orbits, clypeus, mandibles and palpi lemon-yellow ; tegulae, 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 tibiae 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 £ .85 inch. 17. Copei, Cress. Trans. Am. Ent. Soc. ii, p. 94, £ . Bab. — West Virginia. Black; white spot on each side of face; abdomen, except petiole, entirely fulvo-ferruginous ; wings blackish- violaceous. Length £ .82 inch. 18. canadensis, Prov. Nat. Can. ix, p. 2. Copei , Prov. ( not Cress.), Nat. Can. vi, p. 335, £ 9 . Hub. — 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. JIab. — Illinois, (coll, lliley). 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 . JIab. — 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. 109 21. buccatus, Cress. Proc. Cal. Acad. Nat. Sci. 1877. Hub. — Vancouver’s Island. Rather small, robust, uniformly fulvo- ferruginous; antennae blank, fulvous at base; wings blackish-violace¬ ous; head quadrate, cheeks swollen; postpetiole not elevated. Length 9 .60 inch. 22. elegans, Cress. Trans. Am. Ent. Soc. ii, p. 94, 9 • Hob. — 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. Scutellum carinate laterally . PLATYLABUS. Scutellum not carinate laterally . ETJRYLABTJS. PLATYLABUS, Wesm. Body steel-blue . 1. clams. Body black and ferruginous. Abdomen black, second segment only ferruginous . 2. scutellatus. Abdomen entirely ferruginous or black at extreme base and apex. Antennae without pale annulus; head and thorax black . 3. consors. Antennae with pale annulus. Metathorax black. Basal joints of flagellum ferruginous; scutellum with white spot at tip . 4. canadensis. Basal joints of flagellum black; scutellum white . 5. montanus. Metathorax ferruginous. Scutellum white. Abdomen ferruginous, black at tip . 6. signal us. Abdomen entirely ferruginous . 7. ornatns. Scutellum ferruginous or black. Abdomen ferruginous, black at tip . , . . 8. thoraciciis. Abdomen entirely ferruginous . 9. 4-carinatns. Body entirely ferruginous. Antennae without pale annulus . 10. calii'ornicns. Antennae with pale annulus . 11. liueolatus. 1. clarus. Ichneumon clarus , Cress. Trans. Am. Ent. Soc. i, p. 297, 9 • Hah. — N. II. , Mass. A beautiful steel-blue species, with clear wings, white annulus on antenna), 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 coxa) beneath white; flagellum entirely black. Leugth £ 9 *40 — .55 inch. 200 E. T. CRESSON. 2. scutellatus. hchnus scutellatus , Prov. Nat. Can. vii, p. Ill, % . 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. Halt. — California. Black, with sides of face white; femora and ab¬ domen ferruginous; wings hyaline; flagellum entirely black. Length £ .33 inch. 4. canadensis, n. sp. 5- — Black; most of legs and abdomen, except base and apex ferruginous; antennae 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; coxae, trochanters, tips of posterior femora and of their tibiae, first segment of abdomen except tip, and the two or three apical segments, black. Length .35 inch, Ilab. — Canada. 5. montanus, n. sp. 2- — 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. Ilab. — White 31 ts., N. II. (3Iorrison). 6. signatus. Phygadeuon signatus, Prov. Nat. Can. vi, p. 282, 2 • Ilab. — Canada. Black; anterior orbits, interrupted on each side of antennae, spot on each side of clypeus. annulus on autenuae, 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; antennae much shorter than usual. Length 2 *32 inch. 7. ornatus. Phygadeuon ornatus , Prov. Nat. Can. vii, p. 181, 2 • Hob. — 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 oue beneath, scutellum and spot on anterior coxae, white; wings clear. Length 2 .32 inch. AMERICAN TIYMENOPTER A. 201 8. thoracicus. IJoplismenus thoracicus , Cress. Proc. Ent. Soc. Phil, iii, p. 288, £ . Phygaileuon itnpressus, Prov. Nat. Can. vi, p. 281, 9 • var. Ichneumon erythopygus, Prov. Nat. Can. vii. p. 70, £ . Hub. — Can., N. II., N. Y., Pa. Ferruginous; head, antennae, pro- and mesothorax, sometimes the scutellum 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 £ , and spots or lines on apex of abdomen, white; wings slightly dusky; the mesothorax is varied with ferruginous and the basal segment is broader and more rugose in erythopygus ; the sculpturing of the basal segment of ab¬ domen in a good series of specimens, however, varies considerat ly, as does also the coloration of the thorax. Length £ 9 -30 — .35 inch. 9. 4-carinatus. Phygadeuon 4- carinatus , Prov. Nat. Can. vii, p. 180, £ . Hab. — 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 £ .25 inch. 10. californicus, Cress. Proc. Cal. Acad. Nat. Sci. 1S77. IJab. — California. Ferruginous, shining, especially the abdomen; mesothorax sometimes stained with blackish; antennae very slender, apical half black, wings hyaline. Length 9 -35 inch. 11. lineolatus. Ichneumon lineolatus , Prov. Nat. Can. vii. p. 82, 9 • Phygadeuon rujipes , Prov. Nat. Can. vii, p. 181, 9 • Hab. — Canada. Very much like the preceding, but distinguished at once by the white annulus beyoud middle of flagellum. Length 9 .35 iuch. EURYLABUS, Wesm. agilis, n. sp. 9- — Black; dot on each side of vertex, annulus on flagellum, dot beneath tegulse, scutellum and postscutellum, white ; wings hyaline; four anterior tibiae 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 tegulie and line before, white; extreme base of femora reddish ; otherwise as in 9 • Length .35 inch. Hab. — Can., Mass., N. Y. TRANS. AMER. 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 PILEOGENES, 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 short, broad, anterior margin broadly rounded ; mandibles narrowed to tip which 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 .40 inch. Ilab. — Missouri. (C. V. Riley). 2. hariolus. Ichneumon hariolus , Cress. Trans. Am. Ent. Soc. i, p. 305, 9 • Hub. — -N. H., Mass. Black, shining; bead not unusually large, cheeks swollen; broad anterior orbits, mandibles and sometimes the cheeks yellowish-ferruginous; clypcus transversely depressed before anterior margin which is broadly rounded ; antenuoe rather long and sleuder, 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 broadly excavated and transversely wrinkled; tegulae 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 postpetiole; gastrocoeli very transverse, deep. Length 9 -35 inch. 3. hebrus. Ichneumon hebrus , Cress. Trans. Am. Ent. Soc. i, p. 305, S 9 . Phygadeuon insignis, Prov. Nat. Can. vii, p. 179. Hub. — 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 aud 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 antennae, which are entirely black except white annulus on flagellum; the femora and posterior tibiae are black. Length % 9 .36 — .40 iuch. 4. Hebe. Ichneumon Ilebe , Cress. Trans. Am. Ent. Soc. i, p. 306, 9 . Hub. — Ct., N. Y., Ill. Much smaller than hebrus aud more slender in form; black, shining; mandibles except tips, and base of flagellum yellowish; flagellum with a narrow whitish annulus; tegulae 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 coxa) beneath with a large acute tooth at tip; gastro¬ coeli very transverse. Length 9 .23 — .25 iuch. 5. decoloratus, n. sp. 9* — Black; face, clypeus, posterior orbits, antennae at base and beneath, 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 aud tips of their tibiae blackish; abdomen narrow, subfusiform, shining, impunctured, base of second segment broadly transversely depressed. Length .30 inch. Hab. — White Mts., N. H. (Morrison). 6. discus, n. sp. % . — Slender, shining, black; face, clypeus, mandibles, scape beneath, some¬ times a spot beneath eyes, and on tip of scutellum, tegulse, four anterior coxae, 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 slender, simple; abdomen narrow, second segment transversely depressed at base. Length .30 inch. Ilab. — White Mts., N. H. (Morrison). 7. 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, impuuctured ; metathorax deeply excavated behind, with well-defined elevated lines; wings hya¬ line ; legs short and robust, coxae simple, femora swollen ; abdomen broadly fusiform, polished, impuuctured, postpetiole broad, petiole un¬ usually robust, gastrocoeli obsolete. Length 9 .23 inch. 8. fungor. Ichneumon fun gov, Norton, Trans. Am. Ent. Soc. i, p. 306, £ . Hah. — Ct., N. Y.j Pa., Del., Ill. Long, slender, black; clypeus, antennae, legs and abdomen, pale ferruginous; mandibles and tegulae yellow; head large, transversely subquadrate, strongly punctured, clypeus 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 • Ilab. — 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 vincibilis, Cress. Trans. Am. Ent. Soc. i, p. 312, 9 • Ilab — Illinois. Form of Hebe; 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 I1YMEN0PTERA. 205 11. tuberculifrons. Phygadeuon tuberculifrons, Prov. Nat. Can. vi, p. 284, $ 9 • Hah. — Can., Mass., N. Y. Entirely ferruginous except tips of antenna) and apex of abdomen, which are more or less black; head unusually large, deeply emarginate behind, cheeks swollen; antenna) with short, robust joints, the basal joints ferruginous, a whitish annu¬ lus at about the middle; wings narrow, clouded with fuscous, stigma conspicuous; legs rather slender, simple; abdomen fusiform, gastro- coeli obsolete. Length .25 — .30 inch. This probably belongs to Centeterus , Wesm. 12. helvolus. Ichneumon lielvolus , Cress. Trans. Am. Ent. Soc. i, p. 312, 9 • Ilab. — Ct., Pa., Til. Much like vincibilis , but with narrower abdo¬ men ; entirely ferruginous except tips of antenna) and extreme apex of abdomen which are black ; antennae thickened towards tips, pale at base and with a pale aunulus at about the middle; wings hyaline; legs subrobust, posterior coxa) with a short stout tooth beneath ; abdomen narrow subfusiform, transversely depressed at base of second segment. Length 9 .30 inch. 13. laevigatus. Ichneumon laevigatus , Cress. Proc. Ent. Soc. Phil, iii, p. 176, 9 • Ilab. — Colorado. A robust, ferruginous species, the flagellum only being black with a broad whitish annulus; metathorax with sharply defined elevated lines and deeply excavated behind; wings hyaline; legs subrobust, posterior coxae with a small acute black tooth beneath ; abdomen fusiform, polished, gastrocoeli very transverse and deep. Length 9 -33 inch. 14. mellinus. Phygadeuon mellinus , Prov. Nat. Can. vii, p. 315, 9 • Hob. — Can., Mass. Same form as vincibilis; shining ferruginous ; flagellum black with broad white annulus; mandibles, palpi, tegulae and trochanters white; sutures of thorax black; metathorax truncate behind, with well defined elevated lines; wings hyaline, iridescent; legs slender, with subrobust femora, posterior coxae with small obtuse tooth beneath; abdomen fusiform, postpetiole broad, gastrocoeli very transverse and deep. Length 9 -25 — .28 inch. 20G E. T. CRESSON. 15. helvus. Ichneumon lielvus , Cress. Trans. Am. Ent. Soc. i, p. 312, 9 • Phygadeuon hilaris , Prov. Nat. Can. vi, p. 284, % . Hah. — Can., Mass., Ct., Pa.. Ill. Much the same form as tuber - eulifrons ; ferruginous, shining; head large, subquadrate; mandibles large, broad, black, lower edge sinuate; antennae short, with apex black ; head and thorax closely and strongly punctured ; wings sub¬ hyaline; legs slender, simple; abdomen fusiform, shining, iinpuuc- tured, gastrocoeli obsolete. Length 9 .30 — .40 inch. This probably belongs to Colpognathus , Wesm. 1G. pyriformis. Ischnus pyriforrrtis, Prov. Nat. Can. vii, p. 109. Ilab. — Can., N. Y. Same form as fungor , but with smaller head ; pale ferruginous ; face, clypeus, mandibles, anterior orbits, scape be¬ neath, line on collar, tegulae, line before, and one beneath, scutellum, and four anterior coxae and trochanters white or yellowish; large spot on vertex covering ocelli and extending to base of antennae, tips of mandibles, antennae above and sutures of thorax, black; inferior tooth of mandibles very short; wings hyaline; legs slender, simple ; abdo¬ men slender, cylindrical, shining, gastrocoeli obsolete. Length % .35 inch. Probably referable to Ilerpestomus, Wesm. DESIDERATA. Ichneumon nigratorius, Fabr. Syst. Piez. p. 55. — Seutello albo, tborace im¬ maculate, corpore atro; orbita oculorurn albicante. Magnitudo I. pisorii. Corpus totum atrum, nitidum antennarum fascia, oculorurn orbita scutelloque albis. Habitat in America boreali. Brulle, Hym. iv, p. 305, gives the following description of this species : 9 . — II est noir, avec un anneau aux antennes et une taehe sur l’6scusson, jaunes. Les ailes sont transparentes, legerement jaunatres, avec les nervures, et le stigma surtout, d’un jaune roux. Le thorax est ponctu6; l’escusson l’est peu ou point; le ntetathorax est fortement rugueux et comme ride en travers, avec des lignes saillantes qui se croisent diversement; le trois premiers seg¬ ments de l’abdomen sont couverts de points tres-serr6s et sont meme finement strips au milieu ; les autres segments sont a peine ponctues. Longueur; 0,018. Hab. la Caroline. We have several species that answer tolerably well to the above descriptions, but all are too small — not over .GO inch. I. pisorius — an European species, with which nigratorius is compared for size, is very large, being from .80 — 1 inch in length. AMERICAN HYMENOPTERA. 207 Ichneumon Lari®, Curtis, Ross, 2d Voy. Appendix, p. lxi, pi. A, fig. 1. — Antennae curled; rufous, tips of antennae, head, underside of the trunk, with the coxae, and a spot and a broad stripe on the abdomen black. Clothed with very short brownish pubescence, pale eastaneous, minutely punctured; an¬ tennae and head black, the former filiform, the basal joint rufous, third and four following joints paler red; trunk black, the upper surface of the meso- thorax and scutellum rufous and shining, metathorax dull and darker above, with a black furcate stripe down the back; abdomen ovate, very thickly punc¬ tured, a black dot at the base of the second segment, the third with a broad black stripe down the middle, concave on each side, the remainder black with a rufous stripe on each side at the base of the fourth segment, petiole rather short, narrowed at the base; wings tinged with yellowish-fuscous, nervures and stigma ferruginous ochre, areolet quinquangular ; legs rather stout, cox® and trochanters black, the former with a red spot on the upper side in the hinder pair. Length 5 lines. This Ichneumon infested the larv® of the Laria Rossii, from which it was bred early in July, another was taken on the 8th of the same month, but they were not very numerous. Hub. — Arctic America. Quite distinct from anything known to me. Ichneumon vinctus, Say, Contrib. Macl. Lyc. i, p. 70, % . — Body black; head above the antenn® and occiput, black; orbital line interrupted behind, and all beneath the antenn® except the incisure, white; antenn®, basal joints beneath, white; collar with a white line; thorax with a short line above the anterior wing and another below it, from the anterior extremity of these lines, a white line proceeds, and is interrupted before: two impressed dorsal lines obsolete behind; scutel and obsolete point behind it, white; wings, central cellule pentangular, transverse; metathorax with somewhat elevated rug®, enclosing a pentangular space, from the angles of which abbreviated lines diverge, the two posterior of which terminate at the short tubercles; feet, anterior and intermediate pairs, pale whitish-yellow, the cox® white with a black spot behind, the thighs with a black line and tibi® of the anterior pair also with a black line; posterior pair black, second, third and fourth joints of the tarsi, white; abdomen bright rufous, immaculate. Length .50 inch. Hub. — Indiana. Closely allied in some respects to duplicatus , Say, page 180, No. 171. Ichneumon ferrugator, Kirby, Faun. Bor-Am. iv, p. 258. — Black, rather glossy, very thickly punctured with minute and often confluent punctures. Head transverse, triangular, not quite so wide as the middle of the trunk; anterior margin of the face rounded; palpi reddish; eyes long, subelliptical ; antenn® shorter than the trunk, spirally con voluted ; trunk oblong, subcom¬ pressed; scutellum subtriangular, rounded at the apex; metathorax armed on each side with a short tooth, with several elevated longitudinal and oblique lines; legs with decumbent whitish hairs, anterior tibi® obscurely, and all the tarsi, rufous; wings embrowned with a rufous tint, nervures darker; abdomen lineari-lanceolate, rufo-ferruginous, with the first joint, which is dilated at the apex, black; footstalk channeled longitudinally on each side. Length 7 lines. JIab. — Arctic America. Probably the same as rujiventris , Brul 16, page 173, No. 137. 208 E. T. CRESSON. Ichneumon ferrugator, Fabr. Ent. Syst. ii,p. 154. — Ferrugineus antennis apice nigris. Medius, totus ferrugineus, mox immaeulatus, mox pectoris lateribus nigris. Antennae basi ferruginese, apice nigrse. Habitat ad Ameriees littora. Brull6, Hym. iv, p. 295, refers this species to Joppa , and describes it as follows : % 9 • — II est d’un roux ferrugineux, avec les antennes rousses a la base, puis brunes, puis rousses encore, et enfin brunes a l’extremit^; dans la femelle, il existe un large anneau jaunatre avant l’extr^mite. L’abdomen est brun sur les cotes et un peu sur le bord de quelques segments. Les ailes sont d’un brun fuligineux, et quelquefois un peu violac6, avec l’origine du stigma jaunatre. Les cuisses posterieures sont quelquefois brunes. La surface du corps est fortement ponctu^e; celle du metathorax est un peu ruguense et surmontee de plusieurs lignes elevees, les unes longitudinales, les autres transversales : elle pr^sente en outre, en arriere, une depression plus on moins marquee. Longuerer; 0,015. Hab. la Caroline; Philadelphie. This may be the same as Irhn. trogiformis, Cress, p. 175, No. 149. Ichneumon pectoralis, Say, Contrib. Macl. Lyc. i, p. 72. — Body black; orbits and all beneath the antennae, yellow; antennae blackish, joints thirteen to sixteen white; thorax with scutel and a white line before the wings, inter¬ rupted before; transverse line beneath it, yellow; wings hyaline, central cellule pentangular, transverse; pleura black; pectus black, with a large yellow spot between the intermediate and posterior feet; feet yellow, pos¬ terior thighs tinged with rufous, posterior tibiae rufous at tip; abdomen rufous with black incisures. Length over .20 inch. Hub. — Indiaua. This seems Dear to scitulus , Cress., page 180, No. 175. Ichneumon astutus, Holmgren, Eugenies Resa Omkring Jorden, Insecta, p. 394. — Rufus; capite thoraceque ex parte flavis; antennis supra thoracisque maculis nigricantibus; alis leviter infumatis; coxis anterioribus pallidis. Long. 8 mm. Patria: California. Caput obsolete punctatum, pone oculos vix angustatum, antice visum sub- rotundatum ; facie transversa, remote at distinctius punctata, infra antennas paullo elevata. Clypeus depressiusculus, apice truncatus. Labrum nonnihil exsertum. Mandibulse dentibus longitudine insequalibus. Antennae validius- culse, dimidio corpore longiores, apicem versus sensim paullo angustatse. Thorax nitidulus, capite angustior ; mesothorace subremote et parum manifeste punctato, antice lineis 2 impressis; pleuris magis nitidis et remotius punctatis; meta- thorace subtiliter ruguloso, areis superioribus 5, quarum superomedia trans¬ versa, posteromedia nonnihil concava, tridivisa, spiraculis linearibus. Abdo¬ men angustum ; segmenti primi postpetiolo vix nisi valde obsolete punctato, utrinque depresso, lateribus subparallelis; 2;do latitudiue longiore, basin versus sensim angustato, subtiliter et confertim punctato, gastrocoelis manifestis; 3;tio transverse ; ultimo ventrali subacuininato. Mas. Caput rufum, ore, clypeo et facie pallide flavis. Antennse nigricantes subtus testacese vel ferruginese. Thorax rufus, suturis lateralibus et pectore flavo-stramineis; macula prothoracis maculisque utrinque juxta scutellum nigris. Abdomen rufum. Alse infumato-hvalinse, stigmate fusco, radice et AMERICAN HYMENOPTERA. 209 squamulis testaceis. Pedes rufi, anteriorum coxis et trochanteribus stramineis, posticorura tarsis leviter infuscatis. This is somewhat allied to scibilis , Cress, page 1S3, No. 191. Ichneumon pennator, Fabr. Ent. Syst. ii, p. 155. — Luteus antennis alisque atris. Magnus. Antennae porrectae, atrae. Caput flavum punctis tribus verti- calibus, elevatis, globosis, nitidis. Corpus totum flavum abdominis segmentis valde incisis, distinctis. Alae atrae, immaculatae. Pedes flavi. Habitat in Georgia Americae. This is probably the same as Trogus exesorius , Prulle, page 196, No. 5, the color of which, however, is fulvo-ferruginous. Ichneumon bifasciatus, Say, Contrib. Macl. Lyc. i, p. 72. — Body ferrugin¬ ous ; antennse somewhat tinged with whitish beyond the middle and fuscous at tip; thorax circumscribing incisure black; wings dusky with a hyaline band hardly beyond the middle and an abbreviated one near the tip; stigma pale ferruginous; inferior wings dusky, semifasciate on the middle with hya¬ line; oviduct black; pectus incisures black; posterior tibiae blackish at tip. Length .40 inch. Flab. — Indiana. This is probably a species of Cryptus. Joppa maurator, Brulld, Hym. iv, p. 287. — Nigra, abdominc et femoribus pos- terioribus 2 ferrugineis, antennarum annulo albo, alis fuscis. Mas. Fetn. 11 est noir, avec l’orbite des yeux plus ou moins jaune en avaut, un anneau jaunatre aux antennes (en dessus seulement dans la femelle) et le devant des pattes antdrierues d’un jaune roux; les cuisses posterieures et l’abdomen sont d’un roux ferrugineux; les ailes sont enfumdes, avec un reflet brilliant et comme metallique. Le thorax et les handles de derrieure sont granuleux ou ehagrines ; le mdtathorax offre en outre plusieurs lignes saillantes etarquees; l’abdomen estchagrind, avec deux depressions a la base du deuxieme segment. Longuerer. 0,018. Hab. la Caroline ; Philadelphie. This is probably the same as Ichn. insolens, Cress., page 174, No. 141, which, however, is not a Joppa. Ichneumon hilaris , Say, Contrib. Macl. Lyc. i, p. 71, is not an Ichneumon , and probably belongs to the Pitnplariae. Ichneumon JSlaJcei, Cress., Proc. Ent. Soc. Phil, iii, p. 139, is a Cryptus. Ischnus contiguus , Cress. Proc. Ent. Soc. Phil, iii, p. 190; irides- cens , Cress, id. p. 193, and albitarsis , Cress, id. p. 194, also belong to Cryptus. Ichneumon inquisitor and pterelas, Say, Contrib. Macl. Lyc. i, p. 71, belong to Pimpla. TRANS. AMUR. ENT. SOC. VI. (28) July, 1877. 210 E. T. CRESSON. INDEX TO SPECIES. TAGE Ichneumon acerbus . 146 agnitus . . 148 albomarginatus . ICO allapsus . 176 animosus . 176 annulatus . 180 annulipes . 180 apertus . 146 apicalis . 157 astutus . 208 ater . 146 atrifrons . 165 atrox . 151 audax . 156 Azotus . 154 Belfragei . 170 ? bifasciatus . 209 bimembris . 150 bioculatus . 158 bipunctatus . 161 bizonatus . 159 Blandii . 160 brevicinctor . 150 brevipennis . 182 Bronteus . 156 cseruleus . 146 caliginosus . 147 calitergus . 160 canadensis . 177 caudatus . 173 centrator . 144 cervulus . 171 cestus . 182 chalybeus . . 146 cincticornis . 143 cinctitarsis . 156 citatus . 148 citimus . 144 citrifrons . 171 comes . 162 compar . 175 comptus . 165 coufirmatus . 178 consignatus . 160 cordatus . 153 corvinus . 145 creperus . 167 crudosus . 175 PAGE Ichneumon cupitus . 175 Dakota . 161 decoratus . 171 delicatus . 167 devinctor . 174 dictiosus. . 164 difficilis . 176 discus . 176 disparilis . 183 dorsalis . 175 duplicatus . 180 extrematatis . 150 facetus . 184 feralis . 159 ferrugator, Fabr . 208 ferrugator, Kirby . 207 finitimus . 170 flavicornis . 144 flavizonatus . 164 flebilis . 181 funestus . 179 fuscifrons . 177 galenus . 143 germanus . 143 gestuosus . 156 grandis . 173 Grotei . 167 Ileiligbrodtii . 168 helvipes . 158 hiemalus . 181 histricus . 147 honestus . 169 hospitus . 171 humilis . 172 inconstaus . 165 indemnis^. . 172 inhdelis . 155 infucatus . 166 insolens.. . 174 instabilis . 177 inurbanus . 173 involutus . 169 jejunus . 154 jucundus . 166 lachrymans . 171 lsetus . 163 Larise . 207 lascivus . 179 AMERICAN nYMENOPTERA, 211 PAGE Ichneumon leviculus . 170 Lewisii . 175 libens . 181 limbifrons . . . 171 lividulus . 174 longulus . 182 macilentus . 145 maius . 179 malacus . 143 maurus . 142 mendax . 149 merus . 148 milvus . 169 mimicus . 163 mucronatus . 183 munificus . 162 nanus . 184 navus . 147 neutralis . 149 nigratorius . 206 nigrovariegatus . 172 nuncius . 176 odiosus..... . 145 ornatipes . .. 156 Orpheus . 142 otiosus . 155 paratus . 168 parvus . 163 pectoralis . 208 pedalis . 158 pennator . 209 pepticus . 148 pervagus . 148 petulcus . 185 pictifrons . 161 pilosulus . 151 placidus . 174 pomilius . 164 pravus . 151 procax . 170 promptus . 152 propitius . 182 proximus . 184 puerilis . 158 puleher . 147 purpuripennis . 175 putus . 173 recens . 153 residuus . 184 restrictus . 169 rubicundus...., . 184 PAGE Ichneumon rufiventris . 173 russatus . 183 ? rutilus . 185 saevus . 145 sagus . 152 salvus . 166 Saundersii . 177 saucius . 142 scelestus . . 147 scibilis . 1S3 scitulus . 180 scripfcifrons . 144 seditiosus . 172 semilsevis . 157 seminiger . 181 semissus . 183 sequax . . 181 signatipes. . . 180 similaris . 157 solitus . 144 soror . 185 stygicus . 151 suadus . 160 subcyaneus . 149 subdolus....„ . 166 subfulvus . 181 sublatus . 154 succinctus . . 174 term in alis . 170 iexanus . . 159 torvinus . 144 trizonatus . . 162 trogiformis . 175 truculentus.., . 150 tumidifrons . 172 ultimus...~ . 17S uncinatus . 159 unifasciatorius . 155 utilis . 185 vafer . . . 178 vagans . : . 153 variegatus....„ . 167 vecors.. . . 172 velox . 178 ventralis . . 157 versabilis . 161 vescus . . . 163 vicinus . 182 vinctus . 207 vinnulus . 168 vinulentus.... . 176 212 E. T. CRESSON. Ichneumon viola . virginicus . vitalis . vittifrons . vivax . volens . volesus . vultus..... . w-album . Wilsoni . zebratus . zelotypus . Hoplismenus fiavitarsis . morulus . paci ficus . scutellatus .. ? Joppa maurator . Amblyteles anceps . Belangeri . bifasciatus . eoloradensis.... ? eoncinnus.... detritus . electus . excultus . expunctus . fraternus . hiulcus . hudsonicus . iilsetabilis . improvisus . indistinctus..., luctus . . magnus . . montanus . mormonus . Nortoni . nubivagus . Ormeuus . . ? ornatus . perluctuosus.., quebecensis..., robustus . rufizonatus . semicaeruleus. stadaconensis subfuscus . subrufus . suturalis . Taos . tetricus . PAGE Amblyteles ultus.... . 189 Trogus apiealis . 197 atrocseruleus . 196 atrox . 197 austrinus . 197 Bolteri . 198 Brullei . 196 buccatus . 199 canadensis . 198 Copei . 198 Edwardsii . 195 elegans . 199 exesorius . 196 fascipennis . 195 flavipennis . „ . 196 fulvipes . 195 marginipennis . 196 mellosus . . 198 nubilipennis . 197 obsidianator . 196 occidentalis . 197 quebecensis . . 197 Rileyi . 198 Platylabus californicus . 201 canadensis . 200 clarus . 199 consors . 200 lineolatus . 201 montanus . 200 ornatus . . . 200 4-carinatus . 201 scutellatus . 200 signatus . 200 thoracicus . 201 Eurylabus agilis . 201 Plueogenes ater . 202 decoloratus . 203 discus . 203 exiguus . 204 fungor . 204 hariolus . 202 Hebe . 203 hebrus . 203 lielvolus . 205 helvus . 206 lsevigatus . 205 raellinus . 205 pyriform is . 206 quadriceps . 204 tuberculatus . 205 vincibilis . 204 PAGE . 143 . 177 . 149 . 153 . 178 . 182 . 169 . 177 179 . 161 . 163 . 167 . 185 . 186 . 186 .. 186 . 209 193 .. 190 190 193 .. 194 192 191 1S8 189 .. 192 .. 194 .. 192 .. 190 .. 189 .. 192 .. 190 .. 191 .. 188 . 190 .. 192 193 .. 190 .. 194 .. 189 .. 191 .. 191 .. 191 .. 192 .. 189 .. 193 .. 193 .. 193 .. 191 .. 188 AMERICAN COLEOPTERA. 213 On certain genera of Stapliylinidre OWTELIM, I*IESTII);E, and MICItOPEPLIDJE, ns represented in the fauna of the United States. BY JOHN L. LECONTE, M. D. OXYTELINI. Having had recent occasion to arrange the species of Bledius in my collection, I perceived the necessity of grouping them in a natural manner in order to exhibit more clearly the relations between allied species in different parts of the country. As many of them are found only in the immediate neighborhood of the ocean-shore, or on con¬ tiguous salt marsh, it is evident, that if allied species occur inlaud at remote distances, they indicate the former presence of ocean water in those regions, and the divergence between the two forms will enable us to get some idea of the rapidity of change of structure in these instances, from the time when their homogeneous ancestors were sepa¬ rated and exposed to different influences by the progress of geological changes. I would take occasion here to confirm the excellent remarks of Dr. David Sharp on the great value of sexual characters for the separation of nearly allied species in many of the genera of Staphylinidoc. I know in fact, of nt> other family of Coleoptera, in which forms at first sight almost undistinguishable may by the study of these char¬ acters, be most readily recognized. Concerning these secondary sexual characters, which in the Oxytelini affect partly the head, partly the last two or three ventral segments, 1 have two observations to make : 1st. That in each group containing several species allied together by great natural resemblances, there will be found a gradation from those in which sexual characters are strongly expressed, to those in which they become trifling, or imperceptible. 2d. That where the sexual differences are strongly expressed at one extremity of the body, there is a diminution of the differences at the other end; thus indicating a polar action of the organizing influence, of such kind that when it manifests itself in one region of the body, it is correspondingly diminished at the other. This is not of the nature of correlation of growth, as ordinarily exhibited, by which an organ grows by appropriation of the material which would otherwise be divided between it and neighboring organs, but is more akin to TRANS. AMER. ENT. SOC. VI. (29) OCTOBER 1877. 214 J. L. LECONTE, M. D. that localization of power, which is so frequently mentioned by Prof. Dana in his works on Cephalization. Renewed examination of Distemmus Argus , shows it to be an Omalium, nearly related to the European 0. planum. The first four joints of the tarsi are so short and closely united as to appear like two joints as in Trogophlceus , and the four together are barely one-third as long as the last joint. It therefore corresponds with Phloeostiba Thomson. Without having studied the tribe Omalini closely, I am inclined to think the narrow, depressed form, and the peculiar sculp¬ ture, which consists of anastomosing lines forming narrow meshes, would warrant the retention of this group of species as a distinct genus. OXYPORUS Grav. The following table will enable our species to be easily recognized. I have two new species to add to those mentioned and tabulated by Fauvel,* and only a few references to descriptions which are not cited in the Munich Catalogue. Elytra with the sides finely rugose . 2. Elytra polished, with the usual striae and punctures . 3. 2. — Black, tibiae and tarsi pale; elytra pale, suture and sides black. 1. femoralis. Yellow, head, last two abdominal segments, and great part of elytra black. 2. elegaus, n. sp. 3. — Legs black . . Legs yellow . 6. 4. — Sides of prothorax much rounded . 5. Sides of prothorax feebly rounded, elytra pale, with suture, sides and nar¬ row vitta black . 3. major. 5. — Elytra bright reddish-yellow, outer apical angle black . 4. rufipenuis. Elytra black . 5. stygicus. 6. — Hind angles of prothorax, as usual, not flattened . 7. Hind angles of prothorax flattened, rounded, concave beneath; rufous, head, two spots of prothorax, part of elytra, three last abdominal segments, and sides of metathorax black . 11. (jiiiiiquemaculatiis. • 7. — Elytra longer and wider than prothorax . 8. Elytra scarcely longer than prothorax; rufous, head, part of elytra, and tip of abdomen above and beneath black . 10. lepidtis, n. sp. 8. — Color variable, elytra pale with sides and suture black . 6. vittatus. Black above, pale yellow beneath . . . 7. bicolor. Rufous, sides of elytra fuscous . 8. lateralis. Rufous; spot of head, two of prothorax and part of dorsal surface of abdo¬ men black; elytra black, each with a triangular rufous spot. 9. occipitalis. * Marseul, Abeille, i, 369, (1864). AMERICAN COLEOrTERA. 215 2. O. elegans, n. sp. — Bright reddish yellow, head black; antennse and palpi testaceous. Prothorax narrower behind, rounded on the sides. Elytra scarcely longer than the prothorax, with the sides finely rugose from near the middle to the tip; the pair of punctured strise well impressed, and the inner one somewhat confused; the color is black, with the entire base, and a stripe extending from the base nearly to the tip bright yellow. Abdomen yellow, with the last two dorsal and ventral segments black. Length 8 mm ; .32 inch. Louisiana. Mr. A. Sall6. 4. O. rufipennis, Lee. New Spec. Col. (Smithsonian 8vo). This is perhaps only a color variation of the entirely black 0. stygi- cus, Say, but as yet I have seen no intermediate specimens. There is no difference in form or sculpture. 7. O. bicolor, Fauvel, Abeille, i, 371. North Carolina; easily recognized by the black head prothorax and elytra, piceous dorsal segments paler at the sides, and the yellow under surface, palpi and legs. The antennae are testaceous. This species resembles 0. vittatus in form and sculpture, but the inner of the ap¬ proximate elytral striae is more confused, though the specimens do not accurately agree in this respect in either of the species. In one specimen the head is larger and the sides of the prothorax less rounded; in another there is a faint brown elytral vitta. Possibly it is only a color variation of 0. vittatus. 10. O. lepitlus, n. sp. — Elongate, bright rufo-testaceous, head black, occi¬ put with a small brown spot. Prothorax narrowed behind, rounded on the sides. Elytra a little longer than the prothorax, very little wider; the pair of striae well impressed; suture and lateral triangular spot blackish. Last two dorsal and ventral segments black, except the base of the penultimate which is rufous. Side pieces of metastornum black, base rufous. Length 7 mm ; .28 inch. New York, one specimen given me by Mr. Ulkc; resembles in appearance 0. elegans , but easily known by the outer apical part of the elytra being smooth, and by the penultimate ventral and dorsal segment being rufous at base. OSORIUS Latr. 1. O. polltns, n. sp. — Cylindrical, black, head, prothorax and elytra pol¬ ished, sparsely not coarsely punctured. Abdomen rather densely and rugosely punctured. Epistoma broadly emarginate in the arc of a circle, angles promi¬ nent acute. Legs blackish-brown. Gula deeply longitudinally impressed. Length 8.5 mm ; .33 inch. Hilsboro, Florida; one specimen. Messrs. Hubbard and Schwarz. 2. O. plauifrons, n. sp. — Cylindrical, black, shining, antennse and legs reddish-brown. Head sparsely and finely punctured, very finely granulate, antennal tubercles and transverse occipital space smooth and polished; epis¬ toma flattened, truncate, front angles minute, scarcely prominent. Prothorax 216 J. L. LECONTE, M. D. polished, sparsely, rather coarsely punctured with a wide dorsal smooth stripe. Elytra polished, sparsely and coarsely but not deeply punctured. Abdomen granulate, punctured. Gula narrowly but deeply channeled. Length 7 mm; .28 inch. Southern States; two specimens. This species differs from 0. latipes not only by the larger size, but by the much finer and sparser punc¬ tures of' the head; aud less numerous punctures of the prothorax and elytra; the front part of the head is also flattened and obliquely de¬ clivous, while in 0. latipes it is feebly but regularly convex. 3. O. latipes, Er., Staph. 757; Oxytelus lat. Grav. Mon. 198; Oliv. Enc. Meth., viii, 816 ; Molosoma lat. Say, Tr. Am. Phil. Soc. iv, 462 ; ed. Lee. ii, 577. Middle and Southern States, Kansas. Length 4 or 5 mm; .15 — .20 inch. The smaller form was collected in Florida, by Messrs. Hubbard and Schwarz, aud very frequently has red elytra. HOLOTROCHUS Er. 1. If. minor, Fauvel, Ann. Ent. Soc. France, 1863, 437. Three specimens from Florida, (Hubbard and Schwarz), one from South Carolina agree so closely with the description of this species that I am not warranted in considering them as distinct. The front tibiae are not absolutely free from spines, but with a high power a row of fine distant slender spines may be seen, of which the largest is at the outer apical angle. Length 2.75 mm ; .11 inch. Dr. Sharp* has shown very beautifully the relations between this genus and Lispinus of the Piestiui, from which it differs by the prominent and contiguous front coxae. I observe in addition, that in all Piestini the submentum is much larger and flatter, aud defined behind by an angulated suture, while in Osorius and Ho lotrochus the transverse suture is nearly straight. By this character, Ancseus is shown to belong to the Piestini, though the front coxae are contiguous and a little prominent. The form of this suture, however ceases to be even of generic value in Bledius, as will be seen below. 2. II. lrcvi<*au eighth ventral very feebly impressed. Oue % , Nebraska; collected by Dr. F. V. Hayden; 9, Illinois; Dr. Horn. The bead and prothorax are punctured as in B. gularis , that is, more strongly than in B. mandibularis. 3. B. fortis, 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. £ . — 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 £ , 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. mandibularis % . 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 thl submentum is broad and flat, without any central elevation. Length 10 mm; .40 inch. — Eighth ventral segment with two distant slightly converging impressed lines; 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. ferratus, n. sp. — Brown, not shining, antennse, legs and elytra paler; mandibles with the apical part compressed, gradually narrowed from the tooth to the tip; tooth compressed, short, acute; epistoma slightly convex; frontal suture feebly angulated, with an obsolete cusp at the middle; supra-antennal ridges short, broad; back part of head rather strongly hut 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 punetulate than in them; dorsal segments sparsely punctulate. Submentum 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, Cala. ; three specimens, collected by Mr. G. II. Crotch ; varies uniform yellowish-brown. 7. B. jaeol»iuus, n. sp. — Brown, not shining, antennee, 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, Cala. ; five specimens, Messrs. Crotch and Hardy. Group 2. — armatus. 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 tibife 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 surface of the abdomen is nearly smooth, the ventral is densely but fiuely punc¬ tured. AMERICAN COLEOPTERA. 221 So far as I know, these species are not found in salt marshes, but frequent the borders of streams and ponds. Flanks of prothorax concave along the side margin . 2. Flanks of prothorax convex . 8. urmatiis. 2. — Under surface of prothorax with an impressed line parallel with the margin . 3. Under surface of prothorax without impressed line . 9. cribricollis. 3. — Elytra densely punctured . 10. cuspiriutus. Elytra sparsely punctured . . 11. politus. Elytra finely punctured; punctures and dorsal line of prothorax indis¬ tinct.. . 12. flavipcmiis. 8. B. annulus, Er. Staph. 779; Oxytelus artn., Say, Journ. Ac. Nat. Sc. 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. Elytra 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 tine, 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. cribricollis, n. sp. — Brown or blackish-brown, rather shining, an¬ tennae 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 sparsely 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. 'J, . — 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 apparent, ventral segments alike in both sexes. San Dieg;o, California; three specimens collected by Mr. G. R. Crotch. TRANS. AMER. ENT. SOC. VI. (30) OCTOBER 1877. 222 J. L. LECONTE, M. D. 10. 15. cuspidal u$, 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. Ely tra 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 5.5 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. 15. politus, 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 cavit'es 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. E5. fliivijMMinis, Lee., Xew Spec. Col. (Smithsonian 8vo), 52. — Dark- brown, base of antennae, elytra and legs yellow-brown; prothorax reddish- brown. Mandibles with two obtuse teeth on the inner edge. Head opake, finely 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 indis¬ tinct. 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. Sun Diego, Culiforuia; twelve specimens. AMERICAN COLEOPTERA. 223 G ro up 3 . — semiferrug 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 prosternal sutures run from the outer end of the fissure towards the anterior angles of the pronotum, 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 tibice are widely separated; the hind tibia? are long and slender, fimbriate with long sparse hairs and a few fine spines. Prothoracic episterna very distinctly triangular, sutures directed to the front angles of the pronotum . 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. Sides of prothorax slightly rounded, nearly parallel in front . 5. 3. — Head not or obsoletely punctured . 4. Head coarsely punctured . 13. semi ferruginous. 4. — Prothorax wider than long, densely punctured. ..14. rotumlioollis, n.sp. Prothorax not wider than long, more coarsely punctured . 15. fmnatus. 5. — Larger, head shining, sparsely punctured . 16. nitidiceps, n. sp. Smaller, head opake, impunctured . 17. opaclfrons, n. sp. Testaceous, dotsal line of prothorax deep . 18. riiliiginosilS. 6. — Ferruginous, head and prothorax darker, tip of abdomen black; dorsal line of prothorax faint . 19. analis. Blackish-brown, elytra, antennae and legs brown; dorsal line of prothorax wanting . 20. nitidicollis. 13. B. semi ferruginous, Lee. New Sp. Col. (Smithsonian 8vo), 52. — Chestnut-brown, shining, elytra 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 tine 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 ernarginate in an arc of a circle; eighth segment not incised nor impressed. 9 • — Sixth ventral truncate. Middle States, Michigan. Florida. 14. B. rotumlieollis, 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; prosternum feebly punctured. Length 7 mm; .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. 15. funiatus, Lee. New Sp. Col. (Smithsonian 8vo), 52. — Chestnut- brown, shining, elytra red-brown; legs and usually the tip of the abdomen brownish-yellow. Head opake, finely granulate, obsoletely sparsely punctu- late, with a small vertical puncture. Prothorax not wider than long, rounded, truncate in front, strongly punctured, dorsal line deep. Elytra strongly but less coarsely punctured. Dorsal segments sparsely punctulate, ventral segments finely punctured. Side margin and flanks of prothorax as in the preceding, but the episterna are less convex, and even slightly concave along the side margin. Length 5 — 6 mm; .20 — .24 inch. % . — Sixth ventral segment broadly and obtusely emarginate; eighth not incised. 9- — Sixth ventral truncate. Illinois and Canada; four specimens. 16. B. nitidiceps, n. sp. — Black, shining, antennae, legs and elytra red- brown. Head shining, sparsely punctured, vertex somewhat elevated, with a large puncture at the middle. Prothorax longer than wide, sides nearly straight for three-fourths the length, less suddenly rounded behind than usual, surface polished, punctures deep, scattered, not very coarse ; dorsal line deep. Elytra strongly punctured. Dorsal segments finely punctured with longer and more numerous hairs than usual; ventrals finely punctured. Side margin of pro¬ thorax fine, episterna flat, triangular, slightly concave along the margin. Length 7 mm ; .28 inch. Los Angeles and Wilmington, Cala. ; Mr. Crotch. No sexual differ¬ ences observed. 17. B. ©pacifrons, n. sp. — Black, less-shining; antennae and legs brown. Head opake, finely granulate, impunctured, with a small fovea at the vertex. Prothorax with sides nearly parallel, then rounded into the base, sparsely punctured, finely granulate, dorsal line fine. Elytra coarsely not densely punctured. Dorsal segments feebly punctulate, ventrals finely punctured, tip brown. Side margin of prothorax acute, flanks concave along the margin; episterna triangular. Length 4 mm; .16 inch. Los Angeles and San Diego, Cala.; Mr. Crotch. No sexual differ¬ ences observed in three specimens examined. 18. B. rubigiltOSUS, Er. Staph. 765. — Rufo-testaceous, somewhat shining. Head darker, sparsely and feebly punctured, almost imperceptibly granulate. Prothorax coarsely, rather densely punctured, dorsal line deep. Elytra deeply rather densely punctured. Dorsal segments sparsely punctulate; ventrals more distinctly finely punctured. Side margin of prothorax fine, episterna triangular, slightly concave along the margin. Mandibles compressed, toothed so as to form a right angle near the tip, which is not very slender. Length 5.2 mm; .21 inch. South Carolina. No sexual differences seen in eight, specimens examined. AMERICAN COLEOPTERA. 225 19. B. ansilis, Lee. New Sp. Col. (Smithsonian 8vo), 52. — Ferruginous, rather shining, head, prothorax and last two dorsal segments blackish-brown ; elytra with suture dusky. Head finely granulate, opake, sparsely not deeply punctured. Prothorax as wide as long, sides feebly rounded for three-fourths the length, then strongly rounded into the base; coarsely not sparsely punc¬ tured, dorsal line faint. Elytra deeply punctured. Dorsal segments nearly smooth, ventrals sparsely punctulate. Prosternal sutures nearly parallel with the side margin, which is slightly concave. Length 4 mm; .16 inch. 'J, . — Seventh ventral segment with a small triangular apical impression, eighth broadly emarginate. 9 . — Seventh ventral segment sinuate at tip, slightly prominent at the middle, eighth triangularly impressed. Illinois and Missouri. 20. B. n i I i d i co! I is. Lee. New Sp. Col. (Smithsonian 8vo), 52. — Dark- brown, antennse, legs, elytra and tip of abdomen red-brown. Head finely granulated, sparsely punctured. Prothorax polished, coarsely not densely punctured, with a smooth dorsal narrow space, but no impressed line. Elytra strongly punctured. Dorsal segments slightly punctulate, ventrals finely sparsely punctured. Side margin of prothorax acute, flanks feebly concave along the side, episterna trapezoidal, sutures of prosternum, slightly oblique. Length 3 mm; .12 inch. New York, Michigan and Missouri; many specimens, without sexual difference. The hind angles of the thorax though very obtuse and rounded are perceptible, whereby this species differs from all the fore¬ going and establishes a transition to the next group. It resembles in fact B. annularis , but differs by the dorsal prothoracic line being absent; the coxal fissures shorter and not open, and the episterna of the prothorax wider and less concave. Group 4. — annularis. In the species of this group the side margin of the prothorax is acute, and the flanks more or less concave along the side; the fissure of the front coxal cavities is open and large, extending two-thirds way from the coxa to the side ; the prosternal sutures are straight, and the episterna rather narrow and parallel. The mandibles have two acute teeth on the inner side, and the apical part is moderately long and slender. The hind augles of the prothorax are usually very obtuse and rounded, but somewhat apparent, which is not the case in the preceding groups ; though in other species the sides are rounded into the base without atiy angles. The frontal suture is usually very fine and frequently indistinct, though I have not been able to use this character for specific distinction. Head and prothorax finely granulate; the former flattened . 2. Head and prothorax polished; the former con vex ; epistoma with a small apical tubercle; prothorax without hind angles . 12. 226 J. L. LECONTE, M. D. 2. — Prothorax without hind angles . 3. Prothorax with hind angles obtuse, distinct except in sp. 24, 27 . 4. 3. — Prothorax and elytra very finely and densely punctulate. 21. iMi»<*tatissiinus, n. sp. Prothorax sparsely, elytra strongly punctured . 22. latscollis, n. sp. 4. — Sides of prothorax rounded . 5. Sides of prothorax subangulated, slightly sinuate; color entirely black, finely punctured . 23. longipcnnis. 5. — Elytra uniform in color, brown, blackish or testaceous; inentum frequently impressed . 6. Elytra yellow and black, mentum quite fiat . 9. Testaceous yellow, head and tip of abdomen dark. ..35. phy tosin us, n. sp. 6. — Flanks of prothorax distinctly concave . 7. Flanks of prothorax nearly flat; elytra yellow, finely punctured ; prothorax finely granulate, obsoletely punctured . 24. liiteipeniiis, n. sp. Flanks of prothorax flat in front, slightly concave about the middle; blackish-brown or brown, head and prothorax darker; the latter dis¬ tinctly punctured, finely granulated, hind angles distinct, subrect- angular . 25. siuuatus, n. sp. 7. — Prothorax very densely granulated, opake . 8. Prothorax less densely granulated, subopake, hind angles distinct. 26. annularis. 8. — Hind angles of prothorax indistinct, rounded; elytra chestnut, strongly punctured . 27. coniusus, n. sp. Hind angles of prothorax very obtuse, but distinct; elytra yellow-brown, densely punctured . 28. rulicoruis. 9. — Epipleurse dark . 10. Epipleurse yellow . 11. 10. — Elytra diagonally divided in color . . 29. (livisus. Elytra with base and wide sutural stripe black . 30. pleuralis, n. sp. Elytra more finely punctured, diagonally divided in color. 31. riiagoualis. 11. — Elytra more strongly punctured, yellow, base and suture black. 32. Ian, n. sp. Elytra more finely punctured, sides and apical quadrate spot yellow. 33. oi'iiatus. Elytra more strongly punctured, suture fuscous . 34. suturalis. 12. — Rufous, head, and sometimes the abdomen darker. ..36. cognatus, n. sp. Piceous, antennae, legs and elytra yellow-testaceous, suture dusky. 37. emargiuatus. 21. B. puiiftatissiimis, n. sp. — Black, finely pubescent, antennae fus¬ cous base ferruginous; legs ferruginous. Head opake, front broad flat, antennal ridges nearly obsolete. Prothorax wider than long, much rounded on the sides, hind angles rounded into the base, disc subopake, finely and very densely punctulate, dorsal line obsolete. Elytra less opake, finely and very densely punctulate. Dorsal segments shining, feebly punctulate; ventrals similarly punctulate. Mandibles with the apical part long and slender. Side margin of prothorax acute, flanks concave along the margin, episterna narrow, parallel ; coxal fissures long, (open?). Length 3 mm; .11 inch. Oue specimen, Southern California, collected by Mr. Ilardy, and giveu me by Dr. David Sharp. Another specimen precisely similar AMERICAN COLEOPTERA. was given me by Mr. Hike as coming from Florida. This locality is perhaps doubtful; if correct it indicates an example of very unusual distribution. This species is quite distinct from any other in our fauna, and with larger material would be more properly placed as a distinct group. 22. II. la <»«•«!! is. n. sp. — Blackish-brown, more robust than usual, base of antenme, elytra and feet red-brown or yellowish. Head opake, finely granu¬ lated, indistinctly sparsely punctured, front wide and flat, antennal ridges short, but distinct as usual. Prothorax wider than long, much rounded on the sides, hind angles scarcely apparent; finely granulate, opake, sparsely not deeply punctured, with a narrow smooth dorsal stripe and a very indistinct dorsal line. Elytra rather densely and strongly punctured, sutural angle more rounded than usual; when pale colored the base is dusky. Dorsal segments very sparsely punctulate; ventrals strongly, but finely and not densely punctured. Mandi¬ bles with the tip long and slender. Side margin of prothorax acute, flanks concave along the margin, episterna narrow, parallel, coxal fissures open. Length 4 mm; .16 inch. 'J, . — Front angles of epistoma slightly elevated ; two small distant tubercles just behind the frontal suture. Ventral segments alike in both sexes. San Diego and Los Angeles, Cala.; found abundantly by Mr. G. R. Crotch. This species again breaks the homogeneous character of this group, and were it not for the open coxal fissures would be better associated at the end of the preceding group. 23. It. I»ngi|!>oiiiiiM, Maeklin, Bull. Mosc. 1852, ii, 318. — Black, finely pubescent, tarsi brownish. Head opake, finely granulate, front wide, flat. Prothorax not wider than long, sides broadly rounded from the front angles for more than half the length, then subangulated, and feebly sinuate to the hind angles, which are nearly rectangular; disc opake, feebly punctulate, finely granulate, dorsal line very fine. Elytra rather longer than usual, a little wider than the prothorax, finely and densely punctured. Dorsal segments shining, sparsely punctulate; ventrals strongly and finely punctured. Side margin of prothorax acute, episterna parallel, concave along the side, coxal fissures open. Apical part of mandibles long and slender. Length 4.5 mm ; .175 inch. 'J, . — Eighth ventral segment with a small acute incision. British Columbia, one specimen ; previously described from Alaska. 24. II. Ititclpennis, n. sp. — Black, legs and elytra brownish-yellow, an¬ tennae broken. Head and prothorax very finely granulated, subopake; the latter not wider than long, rounded at the sides, hind angles very obtuse, rounded and indistinct, punctures sparse, small and not deep, dorsal line deep. Elytra longer than usual, rather finely and densely punctured, suture dusky towards the base; apical angle more rounded than usual. Dorsal segments nearly smooth, anus brown; ventral segments dark-brown, strongly and finely punctured. Side margin of prothorax acute, episterna rather wide, nearly flat, sutures extending only to the coxal fissures, which are open. Mentum with a small deep impression near the hind margin. Length 3 mm; .12 inch. One badly preserved specimen, San Bernardino, Cala. 228 J. L. LECONTE, M. D. 25. B. siuuatus, n. sp. — Blackish-brown or brown, with head and pro¬ thorax darker; antennae and legs ferruginous. Head subopake, distinctly granulate, sparsely punctured behind, with a small occipital fovea, and a short transverse line. Prothorax wider than long, rounded on the sides, which are subsinuate near the base, angles distinct, slightly prominent; disc subopake, granulated, sparsely distinctly punctured, dorsal line very fine, nearly obso¬ lete. Elytra strongly punctured, convex, scarcely impressed. Dorsal segments sparsely punctulate, ventrals distinctly sparsely punctured. Flanks of pro¬ thorax slightly concave behind, nearly flat in front, episterna moderately wide, with an impressed line extending behind the coxal fissures which are large and open. Length 4 mm; .16 inch. . — Eighth ventral segment with two distant impressed, slightly converging lines; mentum with a small rounded shallow impression, (body dark-brown). Canada. 9- — Eighth ventral segment slightly impressed; mentum nearly flat; (body brown, head and prothorax darker). Illinois. I have doubtfully associated these two specimens together, as they agree, except in color and in the impression of the mentum. Should they prove with larger material to be distinct, the female may be regarded as the type, and a new name imposed on the Canadian darker form. 26. B. annularis, Lee. New Sp. Col. (Smithsonian 8vo), 53.— Brownish- black, elytra and abdomen sometimes reddish-brown, the latter indistinctly fasciate; antennae, mouth organs and legs ferruginous. Head finely granu¬ lated, sparsely punctured, with a small fovea at the vertex. Prothorax not wider than long, rounded on the sides, hind angles obtuse, distinct; disc finely granulated, subopake, sparsely not deeply punctured, dorsal line fine. Elytra deeply and densely punctured. Dorsal segments sparsely punctulate, ventrals finely sparsely punctured. Side margin of prothorax acute, episterna narrow, concave, prosternal sutures extending behind the coxal fissures, which are long and open. Mentum broadly but feebly concave behind. Length 3.3 mm; .13 inch. 'J, . — Last (eighth), ventral segment deeply and acutely incised. Lake Superior, Illinois, Missouri, Georgia, British Columbia and Vancouver’s Island. This and the next three species have an almost deceptive resem¬ blance, but are to be distinguished by the characters of the upper and lower surface of the prothorax. 27. B. confusus, n. sp. — Brownish-black; elytra sometimes red-brown, antennae piceous, base ferruginous, legs dark ferruginous. Head opake, less finely granulate, obsoletely sparsely punctured. Prothorax wider than long, more rounded on the sides, hind angles very obtuse and rounded; disc less finely granulated, opake, sparsely punctured, dorsal line fine. Elytra strongly rather densely punctured. Dorsal and ventral segments, and under surface of prothorax just as in B. annularis. Mouth ferruginous, mentum broadly concave. Length 3 mm; .12 inch. % . — Last ventral segment with a small acute incision which is closed by membrane. AMERICAN COLEOPTERA. 229 \ Lake Superior, four specimens. Differs from B. annularis by the more strongly and densely granulated head and prothorax; the latter is wider and more rounded on the side's, with the hind angles rounded and indistinct. 28. 15. ruficornis, Lee. New Spec. Col. (Smithsonian 8vo), 53. — Blackish- brown, base of antennae and legs yellow-brown ; elytra usually yellow-brown, more densely and finely punctured than in the allied species. Head opake, densely granulated, frontal suture distinct, occipital fovea and transverse line small; feebly and sparsely punctured behind. Prothorax wider than long, rounded on the sides, hind angles obtuse but distinct; disc densely granu¬ lated, opake, distinctly but not strongly punctured, dorsal line fine. Elytra less convex than in the allied species, and more finely and densely punc¬ tured. Dorsal segments sparsely punctulate, ventrals strongly but finely and rather densely punctured. Flanks of prothorax concave behind, but less so, and nearly flat in front, episterna rather wide. Mentum feebly impressed. Length 3 mm; .12 inch. % . — Eighth ventral with a deep acute triangular impression. San Mateo and San Bernardino, Cala. ; many specimens. This species closely resembles B. luticollis, and differs only by the sexual characters, the elytra more finely punctured, and by the hind angles of the prothorax being distinct, and not entirely obliterated. Speci¬ mens collected by I)r. Horn in South-eastern California, are inter¬ mediate in these characters and indicate that one of these species might have developed from the other at a recent geological time. 29. 15. (livisais, Lee. New Spec. Col. (Smithsonian 8vo), 53. — Black, bead and prothorax nearly opake, and very finely granulated, antennae and legs pieeous, tibiae and tarsi paler. Head flat, feebly punctulate. Prothorax a little wider than long, sides rounded, hind angles obtuse, distinct; disc finely not densely punctured, dorsal line fine. Elytra 3rellow, with the sides and a large common triangular space from the humeri to the tip of the suture black: rather strongly and densely punctured. Dorsal segments shining, sparsely punctured, ventrals finely and densely punctured. Side margin of prothorax acute, groove of the side deep, narrow, episterna narrow. Length 3 mm; .12 inch. V — Eighth ventral segment acutely and deeply incised ; 9 with the same segment rounded at tip and slightly impressed. Kansas, Lake Superior and Canada. 30. 15. i>leuralis, n. sp. — Similar in all characters to B. divisus, except that the yellow part of the elytra is defined by a curved instead of a straight line, so that the common triangular spot noted in that species becomes a broad sutural stripe, rounded behind and expanded in front, so as to occupy the base. Length 3 mm; .12 inch. b . — Eighth ventral segment longitudinally impressed; 9 not impressed. San Bernardino and Stockton, Cala.; Mr. Crotch; several speci¬ mens all more or less mutilated. TRANS. AMER. ENT. SOC. VI. (31) OCTOBER 1877. 230 J. L. LECONTE, M. D. 31. 15. rfiagoiialis, Lee. New Spec. Col. (Smithsonian 8vo), 52. — Black, thinly clothed with very short golden pubescence, antennae piceous, legs red¬ dish-yellow. Head and prothorax very finely granulated, opake, sparsely and finely punctured; the latter with the dorsal line very fine, sides much rounded, hind angles obtuse and somewhat rounded. Elytra dark dirty yellow, with a large common triangular spot extending from the humeri nearly to the tip of the suture blackish ; epipleurse fuscous. Dorsal segments shining, punctulate, especially towards the sides, last two segments piceous; ventrals finely punc¬ tured. Side margin of prothorax acute, episterna narrow, concave. Mentum flat, opake. Length 4.7 mm; .185 inch. . — Eighth ventral segment not impressed, rounded at tip. One specimen collected by me at San Diego, Cala., in salt marsh. 32. 15. tan, n. sp. — Black, antennae, palpi, legs and elytra rufo-testaceous ; base and suture of the last black. Head and protborax subopake, very finely granulated, the former less distinctly finely punctured ; the latter finely and sparsely punctured, with the dorsal line very fine; sides much rounded, hind angles obtuse, distinct. Elytra finely and densely punctured. Dorsal segments shining, nearly smooth; ventrals finely punctured, tip piceous. Flanks of pro¬ thorax verjr slightly concave, side margin acute, episterna wider in front than at the coxal fissures which are long, narrow and open. Mentum flat, opake. Length % .—Eighth ventral with two fine distant impressed lines, converging slightly ; intermediate space feebly impressed at the middle. One specimen, New York. The elytra although finely, are more strongly punctured than in the next species. 33. B. oruatsis, Lee. New Spec. Col. (Smithsonian 8vo), 53. — Black, pruin- ose with very short yellowish pubescence, antennae piceous, legs, sides of elytra and large apical blotch extending more than half way to the suture jjale yellow. Head and prothorax opake, very finely granulated, obsoletely punctulate, dorsal line not apparent, sides more obliquely and less strongly rounded than in the neighboring species, hind angles obtuse, not at all rounded, but even slightly prominent. Elytra finely and densely punctured, yellow lateral stripe sometimes confined to the epipleurse, sometimes much wider, dilated behind into a large apical blotch also variable in size; they are more than one-half longer than the prothorax and the sutural angle is more rounded than usual. Dorsal segments somewhat shining, punctulate towards the sides; ventrals densely punctulate. Side margin of prothorax acute, episterna slightly concave, not wider in front. Mentum flat, opake. Length 3.7 — 4.2 mm; .14 — .165 inch. £ . — Eighth ventral with a small acute triangular incision closed by mem¬ brane. San Francisco, Cala. ; many specimens. This species must be closely allied to B. albonotatus, Miiklin, (Bull. Mosc. 1853, ii, 193), from Alaska. The description of the latter, however, mentions that the legs are dark, with the tarsi and the posterior tibiae alone yellow. The pale sides of the elytra are also not mentioned. It may perhaps be an extreme variety, as there are great differences in the markings AMERICAN COLEOPTERA. 231 of the specimens before me; the coxae and legs are, however, yellow in all. 34. B. siaf ursulis, Lee. New Spec. Col. (Smiths. 8vo), 53. — Blackish-brown, antennae testaceous, outer joints piceous, legs and elytra testaceous, the latter with the suture, and sometimes the base fuscous. Head and prothorax finely granulated, nearly opake; the former with a very small occipital fovea, and a few scattered punctures; the latter finely and sparsely punctured ; dorsal line very fine, hind angles obtuse, not rounded. Elytra finely and deeply but not very densely punctured, sutural angle very much rounded. Dorsal segments shining, sparsely punctulate towards the sides; ventrals finely not densely punctulate. Side margin of prothorax acute, episterna narrow, concave. Men- tum fiat, opake. Length 3 mm; .12 inch. Banks of Gila River, Arizona. No sexual differences observed in the four specimens in my collection. 35. B. pliytosinus, n. sp. — Slender, yellow-testaceous, head and penulti¬ mate dorsal segment dusky. Head very finely alutaceous, with a small occipital puncture. Prothorax wider than long, finely granulate, opake, deeply but finely punctured, dorsal line fine, abbreviated at each end, sides feebly rounded, ex¬ cept towards the base, hind angles indistinct. Elytra strongly rather densely, but not coarsely punctured, sutural angle very much rounded. Dorsal seg¬ ments sparsely punctulate, ventrals more distinctly punctulate. Side margin of prothorax acute, episterna narrow, concave. Mentum fiat, opake, with a small basal fovea. Length 2.5 mm; .10 inch. £ . — Seventh ventral segment obtusely prolonged behind; eighth truncate at tip, broadly but not deeply concave. One specimen, Southern California; collected by Mr. Crotch. The form and color give to this species much resemblance to those of the genus after which I have named it. 36. B. COgnattlS, n. sp. — This species is larger than the next, and exactly resembles it in form and sculpture; the head and occasionally the dorsal seg¬ ments one to six are darker, and the elytra are not at all fuscous along the suture; otherwise the color is a uniform reddish-yellow. Length 2.5 mm; .10 inch. Carolina to Texas ; the eighth ventral segment of the % is deeply triangularly impressed. 37. 15. emarginatus. Say, ( Oxytelus), Tr. Am. Phil. Soc. iv, 461 ; ed. Lee. ii, 577; Er. Staph. 780; B. troglodytes, Er. ibid, 775.— Blackish, antennae, legs and elytra pale, the latter with the suture dusky. Head and prothorax shining, polished, sparsely but deeply punctured, the former convex, frontal impressions short, supra antennal ridges very small; epistoma convex, with the angles slightly elevated, and the front margin subemarginate. Prothorax a little wider than long, sides rounded into the base, hind angles wanting. Elytra finely not very densely punctured, sutural angle very widely rounded. Dorsal segments very sparsely, ventrals sparsely punctulate. Side margin of pro¬ thorax acute, episterna narrow, concave. Length 2 mm; .08 inch. 232 J. L. LECONTE, M. D. % . — Eighth ventral segment truncate and subemarginate at tip, deeply longi¬ tudinally impressed. Southern, Middle and Western States. Group 5. — cordatus. In this p;roup the side margin of the prothorax is acute, and the flanks deeply but narrowly concave ; the prosternal sutures are obliter¬ ated, and the coxal Assures are short and closed ; the hind angles are obtuse. The mandibles vary in form according to species, but the apical part is slender. Head and prothorax subopake.the former convex . 2. Head and prothorax opake, densely granulated, the former flat . 3. 2. — Black, antennse, tibiae and tarsi testaceous- brown ; elytra pale yellow, with the basal margin and sutural bead black'ish . 38. bassilis. Black, antennae, tibiae and tarsi dark testaceous; elytra with the basal half black, the apical half pale yellow . 39. dimidiatus, n. sp. 3. — Legs yellow, elytra with a dusky sutural cloud . 4. Legs pale fuscous, body brown, elytra fusco- testaceous . 40. opaculus. 4. — 3.5 rams, long; prothorax wider than long . 41. cordatus. 1.7 mms. long; prothorax scarcely wider than long . ..42. foreigsatas. 38. 15. basalis, Lee. New Spec. Col. (Smithsonian 8vo), 54. — Black, head subopake, very finely granulate; not densely but finely punctured; convex; antennal ridges very small, frontal impressions indistinct; epistoma with the front angles slightly prominent. Antennee testaceous, first and last joints darker. Prothorax a little wider than long, sides nearly parallel in front, then obliquely rounded, hind angles obtuse, not very distinct; disc convex, strongly, though finely punctured, dorsal line indistinct. Elytra finely not 'densely punctured, pale yellow, base and narrow sutural margin blackish; sutural angle not much rounded. Dorsal segments shining, sparsely, the ven- trals less sparsely punctulate. Legs piceous, tarsi and posterior ti bine testa¬ ceous. Side margin of prothorax acute, flanks narrowly but strongly con¬ cave, prosternal sutures obliterated, coxal fissures short, closed. Mandibles obtusely toothed, apical part not very long, slender. Length 2.5 — 3 mm ; .10 — .12 inch. % . — Eighth ventral segment with a small deep triangular impression. Atlantic coast, New York to Florida. The specimens from the latter locality are larger, with the elytra rather more strongly punc¬ tured, but do not otherwise differ. The bristles of the posterior abdominal segments are longer in this and the other species of this group than in any of the preceding groups. 39. 15. dimidiatas, n. sp. — This species resembles the preceding in all respects, except that the prothorax is very distinctly wider than long, and less deeply punctured. The elytra are more strongly punctured, and the basal half is black, the apical half pale yellow; the epipleurae are entirely black, and AMERICAN COLEOPTERA. 233 the line dividing the colors is slightly oblique backwards towards the suture. Length 2.5 mm; .10 inch. One Enterprize, Florida, May 24th; Messrs. Hubbard and Schwarz. 40. 15. opaculus, Lee. New Spec. Col. (Smithsonian 8vo), 54. — Fuscous, elytra paler, opake, finely and densely rugosely punctured. Head opake, finely granulated, flat, sparsely punctured. Prothorax wider than long, sides nearly straight in front, then rounded, hind angles very obtuse, but distinct; finely granulated, opake, finely punctured, dorsal line obsolete. Dorsal segments shining, nearly smooth; ventrals strongly punctulate. Side margin of pro¬ thorax acute, flanks with a narrow deep marginal groove, prosternal sutures effaced, coxal fissures short, closed. Mandibles long and slender, acutely toothed at the middle; mentum with a rounded impression. Legs pale fuscous. Length 4 mm; .16 inch. % . — Eighth ventral segment with two distant slightly converging impressed lines, and a faint longitudinal impression. One pair, coast of Maine, Mr. W. Stimpson ; a similar one found by me at Coney Island, New York : they are unfortunately all im¬ mature. 41. J5. cortfii$u$. Say, (Oxytelus), Trans. Am. Phil. Soc. iv, 461; ed. Lee. ii, 576; Er. Staph. 780. — Black, antennae testaceous, darker at tip; legs yellow; elytra yellow with a large common fuscous blotch, which is smaller, or even obsolete in immature specimens. Head broad, flat, finely granulated, opake. Prothorax finely granulated, opake. one-third wider than long, sides subparallel, rounded behind, hind angles obtuse, indistinct; disc punctulate, dorsal line obsolete. Elytra finely and densely punctured, sutural angle not much rounded. Dorsal segments shining, nearly smooth ; ventrals strongly punctulate, tip dark testaceous. Side margin of prothorax acute, flanks with a narrow marginal groove, prosternal sutures wanting, coxal fissures very short, closed. Length 4 mm ; .16 inch. %. — Eighth ventral segment with a feeble and narrow triangular impression. Atlantic coast from New York to Georgia. Immature specimens are pale brown, with the head, prothorax and penultimate dorsal segment darker. The mentum has a small basal circular impression. The mandibles are long and slender, with an acute tooth about the middle. The base of the elytra is sometimes also fuscous. 42. 15. (oi'Ciptlt us. Lee. New Spec. Col. (Smithsonian 8vo),54. — Piceous, legs and antennae testaceous, the latter dusky at tip ; elytra pale yellow, with the base, and sutural band dilated behind, but not extending to the tip, dusky. Head opake, flat, finely granulated. Prothorax a little wider than long, sides nearly straight in front, rounded behind, angles indistinct; disc opake, finely granulated, punctulate, dorsal line indistinct. Elytra densely and finely punc¬ tured, sutural angle well rounded. Dorsal segments nearly smooth, ventrals sparsely punctulate. Side margin of prothorax acute, flanks with a narrow' marginal groove, prosternal sutures wanting, coxal fissures short, closed. 234 J. L. LECONTE, M. D. Mandibles very long and slender, acutely toothed near the middle. Length 1.7 mm ; .07 inch. £ . — Eighth ventral segment with a small triangular impression. Two specimens, banks of the Colorado River, California, at Fort Yuma. OXYTEMJS Grav. The species of this genus are less numerous than those of Bledius, and do not seem to be capable of arrangement into well-defined groups, which are separated by any important structural differences. They are nevertheless easily recognized by size, color and sculpture, while in most of them the male sexual characters are quite distinct, even in the most nearly allied species. Prothorax coarsely sculptured, more or less shining . 2. Prothorax very finely strigose, quite opake . 11, Prothorax finely sparsely punctured, shining, without grooves; black, legs and elytra bright yellow . 1. iucolumis. 2. — Head prolonged behind the eyes . 3. Head rounded immediately behind the eyes, which are prominent; front flat, opake ; prothoracic grooves deep, elytra rugosely punctured ; piceous, base of antennae and legs testaceous . 2. sculptus. 3. — Sides of prothorax crenulate; prothoracic grooves deep . 4. Sides of prothorax entire . 5, 4. — Piceous, front flat, opake, base of antennae and legs testaceous. ..3. rugosus. Usually black, front convex, shining . 4. niger, n. sp. 5. — Front concave, apical margin elevated . fi. Front flat, not margined at apex; head with long parallel impressions . 8. 6. — Prothoracic grooves deep, entire, front deeply concave . . 7. Outer grooves feeble; posterior impressions of head short. 5. i»ens,yl vanifiis. 7. — Posterior impressions of head parallel . 6. fuscipeniiis. Posterior impressions of head converging . 7. eonvergeiis, n. sp. 8. — Vertex convex, feebly channeled . 9. Vertex flat, not channeled; head very dissimilar in the sexes; prothorax strongly punctured, dorsal grooves deep . 8. insiguitus. 9. — Elytra strongly punctured, prothoracic grooves deep. ..9. puuctatus, n. sp. Elytra more depressed and more densely punctured . 10. 10. — Front polished, dorsal grooves distinct . 10. nitidulus. Front opake, dorsal grooves distinct . 11. sobriuus, n. sp. Front opake, dorsal grooves obsolete . 12. placusiuus, n. sp. 11. — Anterior tibiae slender, truncate at tip, dorsal segments smooth . 12. Anterior tibiae as usual, obliquely emarginate on the outer side; dorsal segments densely punetulate . 13. (lcpressus. 12. — Grooves of prothorax deep, head less opake . 14. minus. Grooves of prothorax feeble, head and prothorax entirely opake. 15. exiguus. AMERICAN COLEOrTERA. 235 1. O. incoluniis, Er. Staph. 791. — £ . Seventh ventral with a prominent middle lobe, which is truncate at tip. $• Seventh ventral bisinuate, middle lobe broadly rounded. Southern States. Easily known by the shining black color, pro¬ thorax without grooves, and the bright yellow elytra and legs. 2. O. sculpt ns, Grav. Mon. 191; Say, Tr. Am. Phil. Soe. iv, 460; ed. Lee. ii, 575; Er. Staph. 788, etc.; 0. mcerens, Mels. Pr. Ac. Nat. Sc. Phil, ii, 42. — ■J, . Seventh ventral with two deep narrow incisions; middle lobe broad, trun¬ cate, feebly impressed, not longer than the side lobes. Eighth ventral broadly concave. Middle, Southern and Western States, and Vancouver’s Island. Also in Europe. 3. O. rwgosus, Er. Col. March, 588; Staph. 786, etc.; Staphylinus rug. Fabr. Syst. Ent. 267, etc.; 0. rugulosus, J Harris, Tr. Hartford Nat. Hist. Soc. 49; O. basalis, Mels. Pr. Ac. Nat. Sc. Phila. ii, 41. — % . Fifth ventral segment with an elevated tubercle at the middle of the hind margin. Seventh ventral deeply and broadly trilobed. Canada, Massachusetts and Pennsylvania. Also in Europe. 4. O. liigcr, n. sp. — Narrower and less depressed than usual, black, shin¬ ing, legs blackish-brown. Head ovate, nearly as wide as the prothorax, wider behind the eyes, which are very small, and not prominent; surface punctured, front slightly convex, frontal suture entirely wanting; antennal ridges short, obtuse; vertex obsoletely channeled, occipital impressions wanting. Prothorax twice as wide as long, sides rounded, feebly crenulate, hind angles rounded ; surface strongly not densely punctured, dorsal grooves deep, straight. Elytra not longer than the prothorax, strongly punctured. Dorsal and ventral seg¬ ments sparsely punctulate. Length 2.5 — 4.3 mm; .10 — .17 inch. % . — Sixth ventral segment with a small tubercle at the middle, and two nearly confluent very small cusps on the hind margin. Seventh ventral bi¬ sinuate, middle lobe broad, not longer than the lateral lobes. Eighth ventral not impressed 9 . — Seventh ventral strongly bisinuate, middle lobe rounded, longer than the lateral lobes. San Francisco, Cala. ; three specimens. British Columbia, one specimen. This last is of small size, piceous, with the elytra paler; the base of the autennae aud legs are testaceous. 5. O. pensylvanieiis, Er. Staph. 792. — £ . Seventh ventral segment slightly tuberculate, near the hind margin bisinuate, middle lobe scarcely longer, truncate and emarginate at tip. Head larger than in the 9 > and more quadrate behind the eyes. Middle and Southern States abundant. 6. O. t'jiscipciillis, Mann. Bull. Mosc. 1843, ii, 233. — % . Seventh ventral with two deep incisions, middle lobe short and broad, truncate at tip. Eighth with deep medial groove. 9- Seventh ventral feebly prominent and retuse at the middle of the hind margin. Eighth slightly concave. 236 J. L. LECONTE, M. D. Alaska, British Columbia, Kansas, Illinois, Pennsylvania. The epis- toma of the £ is more deeply concave than that of the 9 , and the head is more dilated behind the eyes. 7. O. con vergens, n. sp. — Depressed, piceous, shining, base of antennae and legs testaceous; elytra darker testaceous, coarsely acieulately punctured. Head prolonged behind the eyes, which are small and convex; surface coarsely punctured, posterior impressions moderately long, converging obliquely for¬ wards to the front, which has a short longitudinal line; epistoma deeply con¬ cave, smooth at the bottom, strongly margined. Prothorax strongly punctured; the three dorsal grooves are deep and entire, the lateral impressions broad as usual. Dorsal and ventral segments finely and sparsely punctulate. Length 3.4 mm ; .13 inch. — Head as wide as the prothorax, sides parallel behind the ej'es, then sud¬ denly rounded and constricted. Seventh ventral with a broad flat trapezoidal medial lobe, which is truncate at tip, and nearly as long as the eighth segment. 9 . — Not seen. One specimen, Sandy Point, Florida. Messrs. Hubbard and Schwarz. 8. O. insignilns, Grav. Mon. 188; Er. Staph. 793; 0. americanus, Mann. Brachelytra, 48. — 'J, . Head large, quadrate, nearly smooth, strigose each side ■behind the eyes; epistoma prolonged at the middle and acuminate; mandi¬ bles very long, slender, falcate; seventh ventral segment feebly bisinuate at tip. 9. — Head not as wide as the prothorax, rounded behind the eyes, sparsely punctured, punctures smaller in front, epistoma subtruncate; mandibles moder¬ ate in length; seventh ventral broadly rounded at tip. Atlantic slope from New York to Florida and Kansas, abundant. In this species the sexual differences are mainly in the head, and the abdominal characters are consequently very feeble, as already men¬ tioned in the prefatory remarks to this memoir. 9. O. pnnctatiis, n. sp. — Black, shining, elytra dark-brown, legs yellow- brown. Head sparsely punctured, epistoma quadrate, depressed, nearly smooth, separated by a transverse impression; frontal and posterior impressions almost united; vertex convex, with a short longitudinal impression; sides parallel for a short distance behind the eyes, then suddenly rounded and constricted; eyes convex, not very prominent. Prothorax a little wider than long, coarsely punc¬ tured, middle groove deep, the other two less defined; side impressions large, shallow. Elytra depressed, strongly rugosely punctured. Dorsal segments smooth; ventral sparsely very finely punctulate. Length 2 mm; .OS inch. Vancouver’s Island and British Columbia; Mr. Gr. 11. Crotch. I observe no sexual characters in fourteen specimens examined. Two of them are rather larger, but do not otherwise differ. AMERICAN COLEOPTERA. 237 10. O. Iiitidnlns, Grav. Micr. 107; Mon. 186; Er. Staph. 792, etc.; O.rugu- losus. Say, Tr. Am. Phil. Soc. iv, 460; ed. Lee. ii, 576. Middle. Western and Southern States; the only sexual difference is that mentioned by Erichson ; the sixth ventral segment is very slightly emarginate in the % . The synonym is on the authority of Erichson. It seems to me an incorrect determination, but as Say de¬ scribed his species from Mexico, the question does not concern us at the present time. 11. O. sotorinus, n. sp. — Piceous, less shining than 0. punclaius, much as in 0. nitidalus ; legs pale. Head sparsely punctured behind, more coarsely at the sides; epistoma subopake, quadrate, depressed, smooth, vertex convex, channeled; frontal and posterior impressions nearly united ; sides rounded be¬ hind the eyes, which are slightly prominent. Prothorax densely and coarsely rugosely punctured, dorsal grooves distinct, middle one limited by two ridges more prominent than usual; lateral impressions broad, shallow. Elytra de¬ pressed, densely and coarsely aciculate. The other characters as in the two preceding species. Length 2 mm; .08 inch. California, two specimens; no sexual differences observed. 12. O. plaeusimis, n. sp. — Very depressed, fuscous, nearly opake, abdo¬ men shining. Head densely rugosely punctured behind, front less depressed, nearly smooth, subopake; vertex slightly convex, impressed ; sides prolonged and rounded behind the eyes, frontal and occipital impressions nearly united. Prothorax very densely rugosely punctured, dorsal grooves obsolete, the middle one and the lateral impression being faintly indicated ; sides less rounded than usual; hind angles obtuse, not rounded. Elytra punctured like the prothorax. Dorsal segments smooth, ventral finely and rather densely punctured. Length 2.3 mm ; .09 inch. % . — Sixth ventral segment with a small acute projecting angle at the middle of the posterior edge; eighth segment broadly concave. Two specimens found by Mr. II. Ulke, in ants’ nests near Wash¬ ington, D. 0., one of which he has kindly placed in my collection. The dull lustre is owing to the closeness of the punctures, and not to the want of polish of the very narrow interspaces. This species bears a strong resemblance to Placusa of the Aleocharini in form of body, and this superficial likeness is increased by the hind angles of the pro- thcrax being more distinct than usual, and the sides less rounded. 13. O. deprexsiis, Grav. Micr. 103; Er. Stapb. 796, etc. — 'J, . Head large, flat, almost wider than the prothorax; sixth ventral segment slightly and broadly emarginate. 9. — Head somewhat narrower than the prothorax, less flat; Sixth ventral (broken in my specimen, described by Erichson as slightly triangularly pro¬ longed at the middle). , One pair found by me in Indiana. These specimens agree accu¬ rately with the description given by Erichson, of this common Eu- TRANS. AMER. ENT. SOC. VI. (32) OCTOBER 1877. 238 J. L. LECONTE, M. D. ropean species. Tt is easily known by the sexual characters, and the finely but rather densely punctured dorsal segments. 14. O. nail us, Er. Staph. 797. — % . Seventh ventral feebly bisinuate at tip; 9, slightly triangularly produced, (Er.) One specimen, Carolina, Dr. Zimmermann. In this species the head and thorax are less opake than in the next; the dorsal grooves are deep, and the antennae are entirely black. It is a very small insect, being only 1.2 mm ; .05 inch long. 15. O. exiguus, Er. Staj^h. 798; 0. pygtnceus, Mels. Pr. Ac. Nat. Sc. Phil, ii, 41. Middle and Southern States. The sexual characters are much as in the preceding, and the size is about the same. The specimens in my collection would seem to indicate one or two allied species, but the material is not sufficient to enable me to define them. The head and prothorax are entirely opake, the dorsal grooves are wide and shallow, and the base of the antennae is piceous. This and the preceding species differ remarkably from the others by the front tibiae not being obliquely truncate or emarginate on the outer side near the tip, but slender and truncate at tip. O. parvulus, Mels. (i. c. supra), does not seem to differ from this species. PIILiiii<*ta,tus, Stenus A-punct. Say, Tr. Am. Phil. Soc. iv, 459 ; ed. Lee. ii, 575; T. morio, Er. Staph. 805. Western and Southern States. Easily known by its larger size, sub- hexagonal prothorax, strongly punctured elytra and black legs. 11. T. sithlilis, Er. Kafer Mark Brand. 606; Staph. 812, etc. A European species, which has occurred in the Southern and Western States. AMERICAN COLEOPTERA. 247 12. T. fnlripes, Er. Staph. 804. Described from Porto-Rico; occurs in Florida and Louisiana. 13. T. mom nonius, Er. Staph. 806. Described from Egypt; identified by Mr. Fauvel, among specimens from the Southern States. APOCELLUS Er. The species of this genus resemble in form Falagria of the Aleo- charini, but are easily known by the three-jointed tarsi, and the inser¬ tion of the antennae under elevated frontal ridges. The species are few in number, and easily distinguished; others occur in the Antilles and South America, but not on the eastern continent. So for as I have collected them they are fouud in cow dung, and in decomposing vegetable material. Surface shining, highly polished . 2. Head and prothorax opake; head large, truncate behind, prothorax trape¬ zoidal . 1. stilicoiries, n. sp. 2. — Sides of head oblique and rounded behind, base but slightly truncate; pro¬ thorax rounded or nearly so . 3. Sides of head parallel behind; base broadly truncate; prothorax trape¬ zoidal . 2. analis, n. sp. 3. — Prothorax rounded or nearly so . 3. sphjcricollis, 1. A. sti!ic«a