AMERICAN PHILOSOPHICAL SOCIETY. 589 



at tip the common emargination obtuse, not profound : feet black- 

 piceous. 



Length one-twentieth of an inch. 



[A Ilonudota, probably the same as Oh'gota pedicularis Mels. — 

 Lec] 



13. A. MINIMA. — Black ; elytra and feet dull yellowish. 

 Inhabits Indiana. 



Body black, with numerous prostrate hairs : antennae towards 

 the base with a very slight tinge of piceous : elytra dull yellow- 

 ish : tergum dirty yellowish at tip : feet whitish yellow, dull. 



Length nearly one-tenth of an inch. 



Var. a. Thorax nearly the color of the elytra. 



[Also a Homalota. — Lec] 



14. A. BILOBATA. — Dark reddish-brown ; thorax subcordatc, 

 canaliculate, feet pale. 



Inhabits Missouri and Indiana. 



Body vei'y dark reddish-brown, with numerous regular punc- 

 tures : antennae, two basal joints paler : mouth beneath, excepting 

 the terminal joints of the maxillary palpi, pale testaceous : thorax 

 rounded before and narrower behind; very deeply canaliculate; 

 groove abruptly abbreviated on the basal margin : elytra at tip 

 and sides with smaller [157] punctures than the thorax; suture 

 ir dented : feet pale testaceous : tergum, segments with dilated 

 pnnctures at base. 



Length less than three-twentieths of an inch. 



The thoracic canal is less dilated, but at least as profound as 

 that of the canaliculata Grav.; the thorax is more contracted 

 behind, and the head more prominent, and distinctly separate 

 from the thorax by a short neck. 



The genus Aleochara, as is obvious to entomologists, needs re- 

 formation. The present species, and some others of Graven- 

 horst's first divisions, may be separated from it under the follow- 

 ing name and characters. 



Genus Aleodorus. — Head prominent, with a distinct neck, not 

 inserted into the thorax ; antennae inserted into the anterior in- 

 ternal orbit of the eye; three basal joints longest; maxillary 



1836.] 



