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



BlCON. 



Ocnli rotundati, integri. 



Antennae breves, articulis terminalibus septem dilatatis. 



Prothorax ovatus. 



Tarsi breviusculi, cequales. 



Head not constricted behind, quadrate in front, slightly prolonged 

 into a muzzle, a carina on each side below the antennary tuber. 

 Eyes round, entire. Antennae short, distant at the base ; the scape 

 shortly cylindrical ; third joint longest ; the rest gradually shorter 

 and more or less dilated unilaterally, especially from the sixth ; the 

 last broadly ovate, pointed. Prothorax oblong, ovate, convex, bi- 

 sinuate at the base. Elytra rather elongate, narrow. Legs moderate ; 

 femora rather thickened towards the apex, the intermediate and pos- 

 terior of equal length ; tarsi short, equal. Anterior acetabula nearly 

 entire. Pro- and meso-stema simple. 



Allied to Epipedocera, Chev., but with differently formed antennae 

 and prothorax. In the former respect it approaches Euryarthrum, 

 and so far serves to connect that genus with the more normal forms 

 of the Clytince. 



BlCON SANGUINEUS. (PI. XLI. fig. 8.) 



B. niger ; prothorace elytrisque, apice excepto, sanguineis ; sub- 

 tus argenteo pilosus ; abdominis segmentis tribus apicalibus 

 glabris, fuscescentibus. 



Black ; prothorax and elytra, except at the apex, blood-red ; body 

 beneath covered with a close silvery pubescence, the last three seg- 

 ments of the abdomen glabrous, brownish ; head finely and thickly 

 punctured ; antennae also punctured, towards the end paler, with a 

 delicate silvery pile ; prothorax not much broader than the head, 

 covered with coarser and more crowded punctures ; scutellum sub- 

 cordiform ; elytra subseriate-punctate, more irregularly posteriorly, 

 the intervals more or less granulose, the apices bimucronate ; femora 

 and tibiae coarsely punctured, clothed with a few whitish hairs ; in- 

 termediate and posterior tibiae slightly curved ; tarsi with a sparse 

 silvery pile. Length 5 lines. 



Dere. 

 Dere, White, Catal. Long. Brit. Mus. p. 248. 



Dere marginata. 



D. rubra; capite, lateribus prothorucis et elytrorum nigris. 



Brick-red ; head, and prothorax and elytra at the sides, black ; 

 body beneath silvery white ; antennae black, greyish towards the 

 apex ; legs blackish, with a silvery pubescence, which is densest at the 

 base of the femora ; head and prothorax covered with close shallow 

 punctures ; elytra with a closely granulated surface, the apices much 

 more decidedly bimucronate than in D. thoracica. Length 4 lines. 



Dere thoracica, the type of the genus, was originally discovered 



