1866.] MR. F. P. PASCOE ON THE COLEOPTERA OF PENANG. 515 



Black ; head closely punctured ; prothorax closely granulated, 

 bright vermilion, its anterior border and a lateral stripe on each side, 

 not reaching to the base, black ; scutellum small, transverse ; elytra 

 brilliant vermilion, posteriorly black, covered with finely granular 

 points, strongly declivous at the side, the sutural angle at the apex 

 slightly produced ; body beneath black, the sterna subnitid, the ab- 

 domen opake ; legs and antennae black. Length 9 lines. 



Erythrtjs lacertosus. 



E. niger ; prothorace coccineo, nigro bimaculato ; elytris cocci- 

 nets, later aliter for titer delivibus, tertia postica nigris. 



Black ; head small, finely and closely punctured ; prothorax ver- 

 milion, slightly nitid, rather coarsely punctured comparatively, the 

 intervals subgranulose, two black closely punctured round slightly 

 elevated spots on the middle, the space between them'shortly keeled; 

 scutellum subtriangular ; elytra bright brick-red, opake, minutely 

 punctured throughout, the intervals subgranulose, sides distinctly 

 declivous, the posterior third or nearly so black, the apex dehiscent, 

 the suture produced into a short triangular point ; body beneath 

 from the anterior coxa? black, the pectus anterior to them red ; legs 

 and antennae short. Length 12 lines. 



Erythrus apiculatus. 



E. niger; prothorace coccineo, nigro bilineato ; elytris coccineis, 

 lateraliter fortiter declivibus, apice nigris, ad suturam elongato- 

 productis. 



Black, except the prothorax, scutellum, and elytra ; head with a 

 few reddish hairs on the vertex and around the eyes ; prothorax red- 

 dish vermilion, covered with shallow punctures, the middle with two 

 mamilliform tubercles, and two black stripes with an intermediate 

 subobsolete spot, the sides black ; scutellum transverse, rounded 

 behind, reddish ; elytra vermilion, black at the apex, covered with 

 numerous shallow minute punctures and a fine sparse vermilion pu- 

 bescence, the sides declivous, apex at the suture strongly produced ; 

 body beneath opake black ; legs short ; antennae with the third joint 

 somewhat dilated. Length 8 lines. 



Erythrtjs atricollis. 



E. omnino niger, elytris exceptis ; prothorace carina postica in- 

 structo ; elytris apice subchalybeato-nigris, lateribus vix decli- 

 vibus. 



Entirely black, except the elytra ; head more elongate below the 

 eyes, the neck granulose ; prothorax closely punctured, an elevated 

 median line or carina posteriorly; scutellum transverse, pointed 

 behind ; elytra vermilion, the apex black tinged with blue, closely 

 punctured, the intervals granulose throughout, the conjoined apices 

 rounded ; body beneath black, with a slight silvery pubescence on 

 the abdomen ; legs longer than in the preceding ; antennae with the 

 third joint nearly cylindrical. Length 7 lines. 



