1854.] 217 



known species as very much to confuse subsequent investigators. The student 

 of local faunae alone can be expected to remove these obstacles, which fortunately 

 are now but few in number. Such of them as have come before my view while 

 arranging in my collection several families, upon which I am not yet prepared 

 to publish special investigations, are here presented, in the hope of economizing 

 time and labor for other entomologists. 



Besides these, I have found it necessary to indicate several generic synonyms, 

 which have been created by want of familiarity with foreign species belonging 

 to genera not previously known in this part of the globe, or which, from the 

 fanciful classifications frequently invented in the study of large groups, are so 

 described as to be irrecognizable, without typical species. It is to be understood 

 that the corrections here made embrace only such as have not appeared in Dr. 

 Melsheimer's Catalogue of Described Coleoptera, or in any of the synopses or 

 monographs published in this country or Europe, so far as known to the author. 



1 . Elmis v i 1 1 a t u s Mels. Proc. Acad. 2, 99. Well preserved specimens of 

 this species, found at Baltimore, which I owe to the kindness of Mr. J. P. Wild, 

 have proved that the reference to E. 4-notatus Say, made by me in Proc. Acad. 

 6, 44, is incorrect. The mutilated specimen in Dr. Melsheimer's collection was 

 insufficient to make known the character of the species, which is larger and nar- 

 rower than E. 4-notatus, with the sides of the thorax less rounded, and the punc- 

 tures composing the striae of the elytra smaller and less distant. The color is 

 yellow, with the head, sides of the thorax, margin and suture of the elytra, 

 blackish, and the postpectus, femora and tibiae dusky. From E.bivittatus Lee. 

 it is distinguished by its smaller size, paler color, and by the narrower and less 

 convex thorax having the sides less rounded. 



2. Macronychus lateralis Mels. Proc. Acad. 2, 99, does not differ fromM. 

 glabratus Say, Journ. Ac. 5, 187. 



3. Simplocaria s t r i g o s a Mels. Proc. Acad. 2, 118, (Georissus strigosus 

 Mels. Cat. Descr. Col. 35) has been shown by me (Proc. Acad. 7,) to be a Syn- 

 calypta, and very probably European. 



4. Cicones marginal is Mels. Proc. Acad. 2, 112, must be referred to 

 Coxelus. 



5. Atomaria cr e n at a |]Mels. Proc. Acad. 2, 114 (Cryptophagus gilvellus 

 Cat. Descr. Col. 45) belongs to Litargus Er. 



6. Phanaeus t o r r e n s Lee. Journ. Acad. 2d, 1 , 85, by the completion of the 

 series of specimens, proves to be a bright colored, short horned variety of P. 

 triangularis. 



7. Onthophagus n i g e r Mels. is a dark variety of O. Janus. 



8. Ochodaeus obscurus Lee. Journ. Acad. 2d, 1, 86, is no Ochodaeus, but 

 seems related to Aesalus, near which it will form a new genus. 



9. Ochodaeus americanus Westwood, Trans. Ent. Soc. London, 2d, 2, 

 66, is, on the contrary, a true Ochodaeus, but was previously known as Bolbo- 

 cerus musculus Say, Bost. Journ. Nat. Hist. 1, 178. 



10. Scarabaeus splendens Beauv. 89, tab. 26, fig. 2, is referred by Mr. 

 Chevrolat to Xyloryctes, (Ann. Ent. Soc. Tr. 2d, 18, 641,) but appears to be 

 really Strategus A n t ae u s 9 



11. Scarabaeus Bos ci Beauv. ibid. fig. 1, is also a Strategus, not described 

 by Burmeister. 



12. Anomala m a r g i n e 1 1 a Lee. Proc. Acad. 7, 81, is the previously known 

 A. binotata Burm. 



13. The species of Tostegoptera described by me, viz., T. cribrosa, ven- 

 tricosa, aequalis (Proc. Acad. 6,231 and 440) form a new genus distin- 

 guished by the ligula being deeply and squarely emarginate, while in Tostegop- 



