Horn.] tt® [Sep. 19, 



C. Bohemanni platalea,]. Boh. Sell. Gen. Cure. IV., p. 998. 



" Nigro-piceus, nitidus, glaber, supra deplanatus, antennis, tibiis, 

 tarsisque ferrugineis ; rostro capite duplo longiori, tenuiori, apice minus 

 sensim dilatato ; thorace latiori subquadrato, antice evidenter coarctato, 

 supra in ipsa basi obsolete bis impresso, dorso remote lateribus ci'ebre 

 punctato ; elytris profunde punctato-striatis, interstitiis latioribus majis 

 convexis." 



This species is unknown to me in nature. The antenna? are said to be 

 post-median (?) and the sides of the thorax nearly straight, the base of 

 the thorax is also truncate. It is certainly not the species described by 

 Say, as the elytra are distinctly wider than the thorax in the latter. I 

 have copied Boheman's diagnosis with the change of name rendered 

 necessary by the erroneous identification. 



C. platalea Say. Descr. Cure. N. A., p. 24; Am. Ent. edit. Lee. 1, 

 p. 292. 



Black, shining. Rostrum longer than half the thorax, moderately 

 arcuate, apex quadrangularly dilated, basal portion longer than the 

 apical, cylindrical, slightly compressed, surface sparsely punctured, at 

 base not sulcate. Thorax as wide as long, apex rather suddenly nar- 

 rowed, base feebly bi-sinuate and on each side of middle slightly im- 

 pressed, sides strongly and regularly arcuate, surface flattened, unequally 

 punctured, punctures at the sides denser and finer, at middle coarser and 

 more sparsely placed. Elytra broader than the thorax, flattened, striate, 

 stria? coarsely and serrately punctured, intervals flat, very minutely uni- 

 seriately punctulate. Body beneath sparsely punctured. Length .24 

 inch ; 6 mm. 



This is the only species in our fauna in this group in which the sides 

 of the thorax are regidarly arcuate. 



Occurs in the Middle States, under bark. 



C. subareatus Boh. Schonh., Gen. Cure. VIII., 2, p. 266. 



Differs from platalea as follows : 



Rostrum at base with a distinctly impressed puncture. Thorax 

 longer than wide, apex moderately constricted, sides in front arcuate, at 

 middle parallel ; basal angles rounded. Elytra scarcely wider than 

 thorax, striate, stria? coarsely and serrately punctured, intervals convex 

 punctulate as in platalea. Body beneath sparsely and rather finely punc- 

 tured. Length .20 inch ; 5 mm. 



The sides of the thorax are more densely punctured than the rest of the 

 surface, within this the punctures are fine and much sparser, and along 

 the middle the punctures are coarser and rather deeply impressed, espe- 

 cially near the base. This and the preceding species have the club of the 

 antenna? much more suddenly formed and the funicle more slender than 

 in any of the species which follow. 



Occurs from the Middle States to Kansas. 



C. piniphilus Boh. Schonh. Gen. Cure. IV, p. 1002 ; Mann. Bull. 



