CERAMBYCIDJB. 143 



strongly keeled down the middle, the margin somewhat thick- 

 ened. 



Length 8 lines. 

 Hab. N. China (Shanghai) (Coll. Fortune). 



3. Erythrus Westwoodii, n. s. B.M. 



E. miniaceus, antennis et capite postice nigris j thorace supra et 

 subtus ininiaceo, lineis duabus nigris, scutello nigro; elytris 

 apice integris, medio unicostatis, margine subincrassato. 



Head red, antennae and back part of head black. Thorax 

 above and below red, the back with two black lines ; scutellum 

 black. Elytra at the tip entire, in the middle distinctly one- 

 ribbed, the edge of elytra somewhat thickened. 



Length 8| lines. 

 Hab. N. India (Himalaya Mountains). 



4. Erythrus bicolor. B.M. 



Saperda bicolor, Westw. Cab. Orient. Ent. t. 29. f. 9. 

 Hab. N. India. 



84. SMILECERAS. 



Smileceras, Leconte, Journ. Acad. Nat. Sc. Phil. n. s. ii. 8. 

 Cerambyx, p., Say. 



1. Smileceras solitarius. 



Cerambyx solitarius, Say, J. A. N. S. hi. 410. 



Smileceras solitarium, Leconte, Journ. Acad. Nat. Sc. Phil. n. s. 



ii. 9. 

 Hab. Arkansas : N. Mexico. 



85. PERARTHRUS. 

 Perarthrus, Leconte, Journ. Acad. Nat. Sc. Phil. n. s. ii. 101. 



1. Perarthrus vittatus. 



Perarthrus vittatus, Leconte, Journ. Acad. Nat. Sc. Phil. n. s. ii. 



102. 

 Hab. California (San Diego). 



86. CROSSIDIUS. 

 Crossidius, Leconte, Journ. Acad. Nat. Sc. Phil. n. s. ii. 102. 



