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Show 522 MR. F. P. PASCOE O N THE COLEOPTERA OF PENANG. [NOV. 22, BICON. Oculi rotundati, integri. Antennae breves, articulis terminalibus septem dilatatis. Prothorax ovatus. Tarsi breviusculi, arquales. 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, bisinuate at the base. Elytra rather elongate, narrow. Legs moderate; femora rather thickened towards the apex, the intermediate and posterior of equal length ; tarsi short, equal. Anterior acetabula nearly entire. Pro- and meso-sterna 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 Clytinar. BICON SANGUINEUS. (PL XLI. fig. 8.) B. niger; prothorace elytrisque, apice excepto, sanguineis; subtus 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 segments 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; intermediate 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 prothoracis 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 |