CERAMBYCID^. 143 



Strongly keeled down the middle, the margm somewhat thick- 

 ened. 



Length 8 lines. 

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



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



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

 subtus miniaceo, lineis duabus nigris, scuteUo 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 Unes ; scuteUvun 

 black. El\"tra at the tip entire, in the middle distinctly one- 

 ribbed, the edge of elytra somewhat thickened. 



Length 8f Imes. 

 Hab. N, Lidia (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. iii. 410. 



Smileceras sohtarium, 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. Cahfomia (San Diego). 



86. CROSSIDIUS. 

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



