AMERICAN PHILOSOPHICAL SOCIETY. 585 



ALEOCHARA Grav.* 



1. A. OBSCURICOLLIS. — Black; elytra ferruginous; tarsi piceous. 

 Inhabits Mexico. 



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

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

 ferruginous, length hardly exceeding the breadth; scutel black, 

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

 what elevated ; tarsi piceous. 



Length less than three-tenths of an inch, 



2. A. BIMACULATA Clrav. 



A species very closely allied, or perhaps the same as the hima- 

 culata Grav., is an inhabitant also of Mexico. 



3. A. LUSTRICA. — 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 antennae triangularly carinate, dull piceous ; antennae 

 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 

 arquated lines ; lateral margins piceous ; elytra dull yellowish- 

 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. — Leg.] 



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 punctures each side towards the eyes ; eyes 

 large, prominent ; mouth dull yellowish ; antennae at base pale 



* None of the species placed by Say under this genus are mentioned 

 in the Genera et Species Staphylinorum of Erichson.— Lec. 

 1834.] 



