346 Longicornia Malayana. 



tion outwards and downwards from the luteous; body beneath 

 luteous, gradually darker on the abdomen, the last segment nearly 

 black and shining ; legs blackish, the anterior femora and the in- 

 termediate and posterior at the base, the tibite and tarsi brownish ; 

 antennae black, the fourth and eighth joints ringed with testaceous 

 as in the preceding species. 

 Length 2>\ lines. 



Xyaste tr'igonalis. 



X. lutescens, pube pallida grisea tecta ; elytris a medio nigris ; 

 tarsis testaceis. 



Hub. — Morty. 



Pale luteous ; elytra from the middle black, the luteous parts 

 covered with a pale grey or whitish pubescence, not silky but 

 slightly varying in difi'ercnt lights ; head and prothorax inipunc- 

 tate ; scutelluni smaller than in any of the, preceding species ; 

 elytra with the black portion commencing at a point nearly in the 

 centre and proceeding obliquely outwards and downwards ; body 

 beneath luteous, the episterna of the metathorax and adjoining 

 part of the sternum black; legs luteous, the apical half of the poste- 

 rior femora black, the tibiae brownish ; antennae black, the fourth 

 and eighth joints ringed with testaceous as in the preceding species. 



Length 4 lines. 



In colour this bears a considerable resemblance to X. cupula, 

 but the pubescence is thinner and not silky, the elytra are longer, 

 their punctures more marked, and the black part is larger and ad- 

 vances at a sharper angle on the suture, &c. 



§ § Third joint of the antennae shorter than the scape. 

 Xyaste nigr'ipcs. 

 Serixia nigripes, Pascoe, Trans. Ent. Soc. ser. 2, iv. 255. 

 X. brunneo-testacea ; antennarum articulis tribus basalibus, 



corpore infra pedibusque, nigris. 

 Hab. — Singapore (and Penang). 



Pale brownish-testaceous above, thinly furnished with short 

 greyish hairs; head and prothorax with comparatively few scat- 

 tered pimctures, those on the elytra coarser and more numerous, 

 arranged in well-marked lines, except towards the suture, where 

 they are more crowded and irregular ; body beneath, legs and the 

 first three joints of the antennae black. 

 Length 3^—4 lines. 



