146 



cerambycim:. 



and angulated anteriorly at tlie apex ; sixth to tenth subequal, com- 

 pressed, each angidate anteriorly at the apex ; eleventh in the S a 

 little lono;er, in the 2 scarcely longer, than the tenth. Prothorax 

 broader than long, dilated on each side in the middle, narrowed in 

 front, strongly rugose above. Elytra long, with the sides sub- 

 parallel. Legs moderately long, with the femora sublinear, the 

 hind pair scarcely extended past the third abdominal segment. 

 Proster 11 um vertical posteriorly and furnished there with a median 

 keel or tubercle. 



140. Trachylophus sinensis, Ga/uoi, A. M. X. H. (6) ii, p. GO (1888). 



Dark brown, rather densely covered all over \\'it\\ a somewhat 

 silky pubescence of a uniform greyish or yellowish-grey colour. 



Head impressed with a short 

 median groove above between the 

 eyes. Prothorax strongly corru- 

 gate above, most of the ridges 

 intricately convoluted, a few only 

 near the middle take a longitudinal 

 course ; two of these, separated 

 posteriorly by a median furrow, 

 di\erge slightly as they run up to 

 the middle, and then converge 

 and meet a little in front of it, 

 separating again near the apex. 

 Elytra truncated in a slightly 

 oblique direction at the apex and 

 armed each with a very short 

 sutural spine ; the surface A^ery 

 minutely and densely ininctulate. 

 Intercoxal process of the ])rosternum moderately broad, with a 

 feeble median carina, which ends posteriorly in a more or less 

 prominent posteriorly directed titbercle. 

 Lenyth '2b-6'6 mm. 

 IJah. Burma : Karen Hills {Fca) ; South China (Bowriny). 



Fig :)S. 

 Trachylophus sinensis, Galiaii. 



Genus RHYTIDODERA. 



IlbvLidodera, White, Cat. Col. Ii. M., Longic. p. 1^2 (1853) ; Lacord. 

 Gen. Coleopt. viii, p. 268 (1869). 



Type, B,. bowringii, White, a species from China. 



liange. India, China, Burma, tSiam, and Malay Peninsula. 



Eyes rather closely approximated above, reaching nearly to a 

 line with the autenual condyles in front. Antennae of (S shorter 

 than the body in most species, a little longer in some ; lirst joint 

 rather short, not reaching to front margin of prothorax; third 

 longer than the fourth; hfth t > tenth, and exceptionally the third 

 and fourth, compressed in front and more or less sharply angulate 

 at the apex ; antennae of § shorter and less robust, with the joints 



