-65- 

 SYNOPSES OF CERAMBYCIDiE. 



BY CHARLES W. LENG, B. S. 



(Continued from p. 13, vol. vi.) 



LEPTURINI. 



This tribe contains a great number of species which occur on 

 flowers, and are usually prettily colored and clothed with fine pu- 

 bescence. The charcters in which they agree are those of the fourth 

 division of Cerambycinae, stated in our last paper and the following: 

 palpi always unequal, the maxillary elongated; mandibles flat, acute, 

 and fringed on the inner margin; legs slender and never very short. 

 Three divisions may be first made. 



First joint of hind tarsi with the usual brush of hair beneath (except in cer- 

 tain Acmjeops); prothorax usually armed, or tuberculate at sides. 

 Prosternum prominent between the coxae; antennas short, thickened ex- 

 ternally Rhagium. 



Prosternum not prominent, front coxse conical, protuberant; head not sud- 

 denly constricted behind; antennae slender Toxoti. 



First joint of hind tarsi without brush-like sole; prosternum not prominent; 

 head strongly and suddenly constricted behind; eyes finely granu- 

 lated, deeply emarginate; antennje slender Lepturae. 



RHAGIUM Fabricius. 

 R. lineatus Oliv., Ent. iv, 69, p. 13, t. 3, fig. 22; Hald., Trans. Am. Phil, x, p. 

 58; Harris, Ins. Mass., p. 93, etc. 

 Length 13 — 20 mm. ^ .54 — .80 inch. Habitat. — Sitka; N. Y., Va., N. C, 

 Mass., Mich., Me., Md., La., Pa., Lake Sup., N. Mex., Or., Vane, 

 Idaho, Can., Ft. Simpson, Mackenzie River. 



An abundant and peculiar species. The antennae are not as long- 

 as head and thorax together, and the fifth and following joints are 

 decidedly stouter. The thorax is strongly and acutely armed at the 

 sides and bears a discoidal smooth space. The elytra bear three 

 smooth, strongly elevated costae. Color black, or partly brown, 

 mottled with lighter pubescence. 



TOXOTI. 



Eyes large, coarsely granulated; spurs terminal Centrodera. 



Eyes smaller, coarsely granulated; spurs terminal Xylosteus. 



Eyes variable; tibial spurs not terminal Toxotus. 



Eyes finely granulated; tibial spurs terminal. 

 Prothorax acutely armed on the sides. 



Eyes moderate, feebly emarginate Pachyta. 



Eyes large, strongly emarginate . : Anthophylax. 



Eyes very small, entire Piodes. 



Prothorax obtusely angulated, or rounded on the sides; eyes small, entire. 



Mesosternum not protuberant Acmseops. 



Mesosternum protuberant Gaurotes. 



