110 ACADEMY OP NATURAL SCIENCES 



aud cavinated above ; posterior edge slightly bidentate in the 

 middle : scutel 'rounded at base : elytra with punctured strise. 

 interstitial lines punctured. 



Length three-tenths of an inch. 



A species not distinguished by any remarkable peculiarity. 



[Belongs to Cardlophorus. — Leg.]] 



7. E. CONVEXA. — Thorax black, hairy ; posterior edge of the 

 thorax with a fissure each side, and tridentate [170] in the mid- 

 dle ; elytra reddish-brown ; feet rufous. 



Inhabits Missouri. 



Head and thorax not visibly punctured to an ordinary magni- 

 fier ; covered with dense prostrate yellow hair : antennas rufous : 

 clypeus rounded : thorax convex ; posterior angles very short, 

 carinated only on the exterior edge ; posterior edge tridentate in 

 the middle, and with a fissure on each side near the angle ; scutel 

 hairy, cordate, emargined at base : elytra reddish-brown, some- 

 what hairy, with punctured striae ; interstitial lines impunctured : 

 beneath reddish-brown, covered with prostrate hair : feet 3-ellow- 

 ish-rufous. 



Length more than three -tenths of an inch. 



Var. a. Black ; feet dark rufous. Length less than three- 

 tenths of an inch. 



The interstitial lines of the elytra are totally destitute of pune- 

 tures, at least none are perceptible even with an ordinary magni- 

 fier; the thorax is very convex, and equally impunctured, and 

 marked by four fissures in the posterior edge. 

 [ [Unknown to me ; probably a CartUoplwrus. — Lec] 



8. E. TRIANGULARIS. — Clypcus with a very profound sinus 

 each side, for the reception of the antennae ; elytra not striate. 



Inhabits Missouri. 



Body black, slightly hairy, minutely punctured : head with 

 crowded minute punctures; a very profound sinus each side over 

 the insertion of the antennae, anterior to which the clypeus is 

 dilated ; triangular and truncated at tip : antennae dark piceous ; 

 [171] half as long as the body; first joint cylindrical; second, 

 small piceous; third as long as the fourth and fifth conjointly : 

 thorax convex ; punctures very minute and numerous ; lateral 

 edges from near the anterior angles to the posterior ones, rectili- 



[Vol. III. 



