202 CEBAMBYCIDJi. 



in front, densely above ; impressed with a median line along the 

 front ; transversely striate at the sides behind the eyes. Antennae 

 less than twice the length of the body in the J ; first joint densely 

 punctulate, marked with a narrow longitudinal groove in front ; 

 third joint in its distal half and the succeeding joints along their 

 whole length sulcate in front. Prothorax longer than broad, evenly 

 convex above and transversely striated over its whole upper 

 surface ; the striae slightly sinuous in parts, those which lie on the 

 anterior half of the disc interrupted at the middle, the others 

 continued right across. Elytra finely and very densely punctulate, 

 faintly covered with very short dark pubescence. Femora densely 

 and very finely punctulate. Tarsi blackish brown ; first joint 

 of hind tarsus as long as the remaining joints united. 



LengtJi 21-25 mm. 



ffab. Assam ; Tenasserim. 



Genus NOTHOPEUS. 



Colobus, Serville (nee lltif/.*), Ann. Soc. Ent. Fr. ii, p. 554 (1833). 

 Nothopeus, Pascoe, Journ. Entom. ii, p. 287 (1864). 

 Coloborhombus, Thorns. Syst. Ceramb. p. 486 (1865). 



Type, N. hemipterus, Oliv. 



Range. Oriental Region. 



Head raised between the antenna? so as to form a shorb ridge 

 concave from side to side and impressed with a line along the 

 middle : front not clearly marked off from the clypeus ; the latter 

 prolonged anteriorly beyond the base of the mandibles, slightly 

 membranous at its front edge; genae moderately long. Antennas 

 nearly as long as the body in the <$ , much shorter in the $ ; 

 first joint sharply angulate in front at the apex ; third joint the 

 longest, fourth to tenth gradually shorter, each angulate or sub- 

 dentate in front at the apex ; eleventh a little longer than the 

 tenth. Prothorax transverse, tuberculate at each side, narrowed 

 posteriorly the tubercles, constricted and transversely depressed at 

 the base, marked above with a transverse groove near the apex. 

 Elytra approximate at the suture for not more than half their 

 length, dehiscent and narrowed posteriorly ; as a rule very short, 

 not extended beyond the middle of the first abdominal segment, 

 but in one species they reach to the apex of the abdomen, in this 

 species each elytron is rounded at the apex, in others each is more 

 or less acutely pointed at the apex. Front and middle legs of 

 moderate length ; the hind legs long, with the tibiae compressed 

 (in one species subcylindrical), widest in the middle and narrowed 

 towards each end. First joint of hind tarsus nearly or quite 

 as long as the remaining joints united. Intercoxal process of 

 prosternum rather narrow in the middle, and not strongly 

 arched. 



