November, 1S44.J 155 



Subparallel, yellowish-rufous, minutely yellowish-pubescent: bead strongly 

 punctured, with the front widely triangularly impressed, impression occupy- 

 ing nearly the entire lace; clypeus obtusely rounded at apex; antennae color 

 of the body : eyes large, prominent, black, glossy : mandibles with the tip 

 black : thorax longer than wide, slightly contracted at the hind angles, where 

 it is wider than at apex ; sides almost rectilinear from the apex to the con- 

 traction ; finely and densely punctured, subglabrous ; medial line indistinct, 

 only apparent at base ; posterior angles feebly excurved, and obsoletely and 

 shortly carinate : scutellum rather large, pubescent, minutely and closely 

 punctured : elytra distinctly punctate-striate, interstices flat, finely and dis- 

 tantly punctured and transversely wrinkled, subglabrous and like the thorax 

 glossy; sides parallel from the base to behind the middle : beneath yellow 

 testaceous : feet testaceous. 



6. A. oblongicollis. Fuscous; thorax oblong-quadrate; face triangularly 

 impressed ; antennae and feet testaceous. — 7 1. long', 2 1. wide. Pennsyl- 

 vania. 



Elongate, brown, yellowish-pubescent ; head finely and rugosely punc 

 tured, densely pubescent ; face triangularly impressed, with the anterior edge 

 of the clypeus prominent, truncate, slightly deflexed, rufo-piceous ; antennae 

 slender, longer than the thorax, feebly serrate, testaceous, second joint half 

 the length of third nearly ; eyes large, prominent, black ; palpi testaceous : 

 thorax oblong-quadrate, strongly convex, narrower than the elytra, deeply, 

 densely and rather finely punctured ; medial impressed line distinct behind 

 the middle ; sides slightly widest and rounded in the middle, and feebly con- 

 tracted before the posterior angles, which are short, robust, obtuse and 

 somewhat excurved and piceous ; scutellum finely punctured : elytra with 

 the sides parallel from the base to the middle, thence to the apex gradually 

 narrowed ; crenate-striate, the interstices slightly convex, densely trans- 

 verse. rugulose ; exterior edge and suture dull rufous : epipleuras and abdo- 

 minal margins dark rufous : feet nearly the color of the antennae. 



7. A. hypoleucus. Fuscous, beneath testaceous ; face triangularly iropres 

 sed ; posterior thoracic margin and angles piceous. — 5| 1. long; \\ 1. wide. 

 Pennsylvania. 



Brown: head confluently rugose-punctured, pubescent, triangularly impressed 

 on the face, with the clypeus porrcct, truncate at apex ; dull rufous ; antennas 

 slender, somewhat longer than the thorax, rufous ; second joint half as long as 

 the third, which is slightly longer than the fourth ; terminal joint distinctly subu- 

 late ; eyes prominent, large, black ; thorax oblong-quadrate, convex, densely and 

 finely punctured, clothed with fine, anteriorly inclined, pile ; darker than the 

 elytra; dorsal line narrow, faintly impressed; sides almost rectilinear; hind 

 angles short, subacute, finely carinate ; base and posterior angles testaceous or 

 piceous, sometimes obsoletely so = elytra gradually narrowed from behind the 

 middle to the apex, with punctured striae, interstices slightly convex, transverse- 

 ly wrinkled ; clothed with short yellowish pile; sides obsoletely dull rufous: 

 beneath rufo-testaceous : feet testaceous- 



