1863.] ' 355 



pubescence. Antennae deep black, opaque, half the length of the body, 

 compressed and strongly serrate; 3rd to 10th joints about equal in length, 

 terminal joint longest and suddenly constricted at its apex. Head and 

 thorax densely and profoundly punctured, the latter almost half the length 

 of the elytra, with a deep longitudinal sulcus on the disk not quite reach- 

 ing the anterior margin; sides almost straight, slightly wider in front; an- 

 terior angles slightly rounded, posterior angles very long, divergent and 

 distinctly carinated with their apex truncate; posterior margin strongly 

 impressed on either side. Elytra gradually attenuated behind the middle; 

 strige well impressed, apparently impunctured; interstices minutely punc- 

 tured. Beneath, the abdomen and postpectus are shining and minutely 

 punctured; the disk of the thorax is shining, deeply and somewhat sparse- 

 ly punctured, and the sides are subopaque and very densely and conflu- 

 ently punctured. Legs bright fulvous, tarsi dusky. Length 7 lines. 



Collected in Hampshire County, Virginia, and presented by E. T. Cres- 

 son. The antennae have the appearance of being 12-jointed in conse- 

 quence of the singular constriction of the apex of the terminal joint. 



CORYMBITES NeBRASKENSIS n. sp. 



Head, thorax, scutellum, and body beneath black ; elytra reddish yel- 

 low. 



Hah. Nebraska. (Coll. Entom. Soc. Philada.) 



Body black, shining. Head densely punctured, piceous. Antennae light 

 brown varied with dark brown, 3rd joint subcylindrical, 4th and following 

 joints sen-ate, terminal joint attenuated. Thorax short, not longer than 

 wide, deep black, shining; sides broadly rounded; posterior angles short, 

 acute and slightly divergent, and apparently not carinated; basal margin 

 somewhat deeply impressed on either side, and sparsely clothed with yel- 

 lowish pubescence (which may, in fresh specimens, cover the whole sur- 

 face of the thorax). Scutellum black, with a shallow depression on the 

 disk. Elytra reddish-yellow, deeply impressed around the scutellum ; base 

 not wider than the thorax; sides distinctly impressed above the middle, 

 then gradually dilating to the posterior third and then rounded to the apex; 

 dorsal surface flattened, sides deflexed with the margin prominent and 

 slightly reflexed; strife punctured, deeply impressed at the base of the 

 elytra but not quite reaching the extreme basal margin, less deejily impres- 

 sed towards the apex where they become almost obsolete; interstices flat 

 and very minutely punctured. Body beneath shining black, minutely 

 punctured. Legs light brown, thighs darker. liCngth -1^ lines. 



