528 MR. F. P. PASCOE ON THE COLEOPTERA OF PENANG. [Nov. 22, 



type N. paris, appear to form a natural group sufficiently distinct 

 from the European typical Cerambyces. 



HoPLOCERAMBYX. 



Hoploeerambyx, J. Thomson, Syst. Ceramb. p. 229. 



HoPLOCERAMBYX RELICTUS. 



H. fuscus, pube grisea tectus ; capite pone oculos breviusculo, 

 fronte kaucl impressa ; prothorace transverse striato, inter- 

 stitiis interruptis, pubescentibus. 



Dark brown, with a fine greyish pubescence ; head but slightly 

 lengthened behind, rather strongly grooved between the eyes, with- 

 out, or with a very indefinite impression in front ; prothorax with 

 transverse shallow striae, the interstices interrupted and pubescent, 

 except at the base and apex ; scutellum triangular ; elytra with a 

 delicate slightly silky pubescence, the light reflecting broad trans- 

 verse wavy bands, the apices oblique, mucronate at the suture ; body 

 beneath and legs dark brown, shining, with a thin greyish pile ; 

 antennae in the female about two-thirds as long as the body, the 

 scape slightly shorter than the third joint. Length 18 lines. 



I have described this from a specimen in my own collection from 

 Singapore, but I am not certain that it may not turn out to be a 

 small example of H. morosus. It is quite evident that the species 

 of this and the two preceding genera are very variable ; and 1 ques- 

 tion, if a large series could be obtained, if many of them would be 

 found to have any reliable specific characters at all. The males of 

 this genus have, so far as I have seen, naked and strongly punctured 

 antennae, while in the females they are pubescent and, except the 

 scape, impunctate. 



DlALEGES. 



Bialeyes, Pascoe, Trans. Ent. Soc. ser. 2. iv. p. 46. 



Dialeges pauper, Pascoe, op. cit. p. 47, pi. 16. f. 7. 

 Found also in Sarawak by Mr. Wallace. 



Imbrius. 



Antenna? in utroque sexu plus tninusve serratce ; scapo inteyro. 

 . Oculi yrosse granulati, ad os approximates. 

 Prothorax oblonyus, muticus. 

 Pedes cequales ; femora in medio incrassata. 



Head small, narrow, more or less exserted. Eyes broadly emar- 

 ginate, almost contiguous above and approximating to the mouth 

 below, the facets large. Antennae as long as the body ; the scape 

 short, entire at the apex ; third and fourth joints generally not longer 

 than the scape, more or less nodulous in the males ; the rest, except 

 the last, dilated unilaterally towards the apex. Prothorax oblong, 

 scarcely broader than the head, subcylindrical, the sides rounded 

 and unarmed, the base nearly straight or only slightly sinuated. 



