AMERICAN rniLO.SOI'IIICAL SOCIETY. 585 



ALEOCIIAllA (irav* 



1. A. OBSCURlCOLLis. — Hlack; clytra ferruginousj tarsi piccou.s. 

 Inhabits Mexico. 



Body black ; head opacjiie ; labrum piceous ; thorax orbicular, 

 truncated before for the reception of the head, opaque ; elytra 

 ferruginous, length hardly exceeding the breadth; scutel black, 

 opacjue ; abdomen obviously hairy, polished, lateral edge some- 

 what elevated ; tarsi piceous. 



Length less than three-tenths of an inch. 



2. A. BIMACULATA Grav. 



A species very closely allied, or perhaps the same as the fn'ma- 

 ruliita (!rav., is an inhabitant also of Mexico. 



o. A. LLSTUlc.v. — Blackish ; thorax each side, elytra and feet 

 dull rufous. 



Inhabits Pennsylvania. [469] 



Body piceous-black, obviously punctured; head black, with 

 numerous punctures, sparse in front and more dense behind ; 

 before the antenn;v) triangularly carinato, dull piceous ; antenna; 

 dark reddish-brown, three basal joints honey-yellow ; mouth dull 

 honey-yellow; thorax with very numerous punctures, rather 

 larger towards the base and almost to be traced into transverse 

 anjuated lines ; lateral margins piceous ; elytra dull yellnwish- 

 rufous, with dense punctures ; abdomen piceous at tip ; feet honey- 

 yellow. 



Length under one-fourth of an inch. 



[The same as the European A. fuscipes. — Lec] 



4. A. FASCIATA. — Yellow; head, band of the elytra, spot on 

 the tergum black. 



Inhabits Pennsylvania. 



Body yellow, with a slight rufous tinge ; head black piceous, 

 with rather large j)unctures each side towards the eyes ; eyes 

 large, prominent ; mouth dull yellowish ; antenna? at base pale 



* None of the species placed by Say under tliis genus are mentionetl 

 in the Genera ct Species Staphylinorum of Erichsou. — Lec. 

 1834.] 



