OF PHILADELPHIA. 201 



Body cjlindrical, reddish brown, punctured, partially covered 

 by very short, prostrate hair : head blackish ; antennae reddish- 

 brown, shorter than the body : thorax in the middle blackish and 

 [426] more prominent : elytra entire ; each elytron with an ele- 

 vated obtuse tubercle near the scutel : a black, longitudinal spot 

 from before the middle, where it is margined with a whit- 

 ish line, to near the tip ; before its posterior termination it is in- 

 terrupted by a large white spot. 



Length one-fourth of an inch. 



Found by Mr. Thomas Nuttall on the Missouri. 



[The type of the Lamioid genus Psenocerus Lee. Journ. Acad. 

 Nat. Sc. Phila. 2d ser. 2, 158, but incorrectly considered by me 

 as identical with Callidium jpini 01., which is really a species of 

 Euderces Lee. — Lec.J 



STENOCORUS. 



1. S. LONGIPES. — Black; thorax cylindrical, mutic, rufous; 

 thighs clavate ; elytra bidentate. 



Inhabits Missouri Territory. 



Body elongated, black, punctured, subglabrous : head between 

 the antennae concave : antenna; longer than the body : thorax 

 rufo-sanguineous, cylindrical, slightly dilated into a very obtuse 

 tubercle each side behind the middle ; punctures obsolete : scu- 

 tel impunctured : elytra with large, rounded, deeply impressed, 

 numerous punctures ; apex truncato-sinuate, bidentate : thighs 

 clavate ; posterior ones elongated : postpectus and abdomen cov- 

 ered with dense, short, incumbent, cinereous hair. 



Length five-sixteenths of an inch. 



Found at Fort Kennedy, on Barek Creek, Missouri Territory. 

 It is an elongated insect, resembling a Necydalis. The posterior 

 thighs are much elongated, and, like the others, are clavated at 

 tip. 



[Belongs to Rhopalopliora : failing to recognize the genus, I 

 described it as T'mopus. — Lec] 



2. S. MUCRONATUS. — Browu, with cinereous hair; antennae 

 three or four spined; thighs mucronate ; elytra bidentate. 



Inhabits the United States. 



Stenocorus marylandicus Melsh. Catal. 

 1824] 



