AMERICAN PHILOSOPHICAL SOCIETr. 587 



7. A. PROPKRA. — Blackish; tliurax depressed on the postcriur 

 middle. 



Inliabits Tmliana. 



Body with very nuiut'rdu.s small iiiincturcs, furnishing pale 

 yellowish hairs ; antenna) black fuscous, three or four basal joints 

 piceous ; mouth pieeons ; thorax black piceous, conspicuously 

 hairy; on the middle of the base indented; elytra i)iceous brown, 

 obviously hairy, a little depressed on tlie basal margin and in the 

 region of the scutel ; tergum black ; feet pale piceous. 



Length over or about one-tenth of an inch. 



The depression, almost or quite amounting to an indentation 

 at the base of the thorax is sometimes geminate. 



8. A. 8EMICARINATA. — Blackish ; thorax with a carina on the 

 basal half. 



Inhabits Missouri. 



Body black with a piceous tinge; thorax with an elevated line 

 or two parallel impressed stria), from the middle to the base ; 

 elytra with a slightly impressed sutural groove on the basal half; 

 abdomen black; feet pale piceous. [471 J 



[Continuation from Vol. VI. N. S., 1S3G, pp. 155-100.] 



0. *A. siMPLicicoLLis. — Blackish; antennae, feet, inner tip of 

 the elytra and posterior margins of the segments of the terguni 

 reddish-brown. 



Inhabits Missouri. 



Body with short prostrate hairs ; head black ; antenna; reddish- 

 brown ; transverse joint somewhat darker; elytra on the sutural 

 margin, particularly towards the tip, obscure reddish-brown ; 

 common emargination at tip very obvious : tergum with the pos- 



*In the Josoription of the procedint; species (,1. semirariiKita sec Vol. 

 IV. N. S., p. 47(\) the following details were accidentally omitted : — 



Leutrth less than one-tenth of an inch. 



Resembles A. propcra, but may be distinguished by the double tho- 

 racic groove, forming an inclined carina. 



183(5.] 



