256 MR. F. P. PASCOE ON THE COLEOPTERA OF PENANG. [May 8, 



detailed account of this genus is given by M. J. Thomson in his 

 'Essai, &c.,' p. 345. 



Serixia. 



Serixia, Pascoe, Trans. Ent. Soc. scr. 2. iv. p. 45. 

 Iolea (Iole), Pascoe, op. cit. iv. p. 254. 



Serixia prolata. 



Iole prolata, Pascoe, I. c. 



Not uncommon at Sarawak. A somewhat thick-set uniformly 

 coloured luteous species with the apices of the elytra rounded. 



Serixia varians. 



S. latea, pube niticla argenteo-velutina tecta ; antennis totis in- 

 fuscatis. 



Luteous, covered with a shining silvery velvet pile, varying when 

 viewed with and against the light ; head and prothorax very slightly 

 punctured, the latter much narrower than the head, and gradually 

 narrowed behind from nearly the anterior border ; scutellum small, 

 rounded behind ; elytra seriate-punctate, the punctures small, the 

 sutural angle at the apex slightly produced ; body beneath darker 

 yellow, and less pubescent ; antennae two or three times as long as 

 the body. Length 4 lines. 



Distinguished from S. prolata by its glossy velvet-like pubescence, 

 prothorax tapering behind, the small punctures on the elytra, an- 

 tennae entirely brownish black, &c. 



Serixia basalis. 



S. lutea, elytris dimidio basali griseo-nigris, utrinque macula alba 

 prope scutellum sita. 



Pale luteous ; head and prothorax darker, with an exceedingly 

 delicate pile and impunctate ; the head considerably wider than the 

 prothorax, the latter gradually narrowed to the base ; scutellum 

 truncate behind ; elytra seriate-punctate, the rows and the punctures 

 widely apart, pubescence very fine, much denser than on the pro- 

 thorax, and varying with the light, sutural angle of the apex forming 

 a short mucro ; body beneath entirely luteous ; antennae brownish 

 black, the base of the fourth joint luteous. Length 3-4 lines. 



A very distinct species, which may take its place immediately after 

 my S. cephalotes. 



Serixia longicorxis. 



Iole longicornis, Pascoe, Trans. Ent. Soc. ser. 2. iv. p. 255. 



Taken also by Mr. "Wallace in Singapore, Batchian, Ceram, and 

 "Waigiou. It is a narrow palc-luteous species, with the apices of the 

 elytra rounded. A variety in the collection is less pubescent, with 

 the basal antennal joint testaceous. 



