— 4— 



SYNOPSES OF CERAMBYCIDiE. 



Ik C'iias. W. Leng, B. S. 



(Continued from p. 200, vol. II.) 



Our most variable ami widely distributed species. Black or brown 

 with white or yellow pubescence on thorax and elytra. The thoracic 

 pubescence may be either in the form of anterior ami posterior marginal 

 bands more or less interrupted, or lateral blotches more or less extended. 

 The elytra always have bands as shown in our figure, but they may be 

 broken into dots or the lines waved throughout their entire length or 

 again they may be nearly concealed by a generous sprinkling of hair 

 over and between them. These variations in color have caused an ex- 

 tensive synonymy and although no varieties actually seem to exist in 

 nature I would suggest that for convenience in cabinet arrangement two 

 names be retained : fuscus Kirby, for the form with the sides of thorax 

 entirely covered with pubescent blotches and the elytral bands wavy, and 

 interruplus La}) & (lory, for the form with the bands greatly obscured by 

 the sprinkling of white hair. Such specimens will always be noted by 

 the collector as distinct and less confusion will be caused by retaining the 

 names than by omitting them 



X. annosus Say. J. A. P., V, 2, 1S27, p. 277. 



Length 9—15 mm. = .36 -.60 ins. Hab. Mo., Cab, Mont., Tex., Me., N. H. 

 Black with white pubescence. The apical and intermediate 

 bands are fairly distinct, the others entirely obscured by the sprinkled 

 white hair. This species is more slender than undulatus and naulicus, and 

 that will serve to distinguish old or poorly marked specimens. Fresh 

 specimens are easily known by the uniform white pubescence on the 

 black ground. It appears to be rather rare. 



X. nauticus Mann. Bull. Mosc, 1843, II, p. 305; gramineus Hald, Trans. 

 Am. Phil., X, 1847, p. 40; Lee. J. A. P., ser. 2, II, p. 27. 



Length n — 14 mm. = .44— .56 ins. Hab. W. T., Cal., Mont., Or. 

 Brown, with yellowish-brown bands and interspersed pubescence, the 

 bands always more or less confused. The bands are always more angulate 

 than in undulatus, certain forms of which this species strongly resembles. 

 Beneath the segments are never distinctly banded with yellow, as is usual 

 in undidalus. X. gramineus does not differ in any way from nauticus. I 

 have indicated in the synoptic table the most interesting feature in this 

 species, the tendency to form transverse rugae on the pronotum like 

 Neoclyius or a tubercle at the side. 



NEO.CLYTUS, Thorn. 

 This genus is again sharply defined by the transverse ridges of the 

 pronotum. which are not elsewhere found, except as above stated in an 



