| OCR Text |
Show 1866.] MR. F. P. PASCOE O N THE COLEOPTERA OF PENANG. 517 PYRESTES VIRGATUS. (PI. XLIL fig. 4.) P. niger, opacus; prothorace elytrisque coccineis, illo vitta nigra mediana, his sutura apice scapulisque nigris, apicibus conjunc-tim rotundatis. Black, except the prothorax and elytra ; head a little narrowed below the eyes, and comparatively rather coarsely punctured; prothorax longer and narrower than in any of the above, its posterior border scarcely broader than the anterior, vermilion, with a narrow median stripe and its sides black, coarsely and deeply punctured, the interstices anteriorly forming slightly waved transverse lines ; scutellum narrowly triangular ; elytra rather narrow at the base, vermilion, the suture, shoulders, and apex black, closely and deeply punctured and much more coarsely at the base, the apex rounded and without any mucro ; body beneath black ; legs short; antennae with the third joint longer than the scape, the fourth as long as the penultimate, the sixth to the tenth inclusive broadly dilated. Length 4\ lines. PYRESTES NIGRICOLLIS. P. niger, opacus; elytris (sutura, apice scapulisque exceptis) coccineis, apicibus extus rotundatis, ad suturam submucronatis; abdomine apicem versus rufescente. Black, except the elytra; head narrow and elongate below the eyes, closely punctured on the vertex; prothorax black, rather suddenly constricted anteriorly and as broad as the head, covered with deep somewhat crowded punctures; scutellum narrowly triangular, raised at the sides ; elytra rather narrow, scarcely broader posteriorly, vermilion, the suture, shoulders, and apex black, closely punctured, the punctures much coarser at the base, the intervals subgranulose, the apex of each rounded externally, but having a slight mucro at the suture ; body beneath black, the last two or three abdominal segments reddish ; legs rather slender ; antennae with the third joint longer than the scape, the fourth as long as the last four or five joints. Length 6 lines. All the species (eight) of this genus are very distinct, as a comparison of their diagnostic characters will show. Mr. Wallace appears to have met with only a single example, P. eximius, at Sarawak. Mr. Bowring found P. cardinalis not uncommonly at Hong Kong. The other two, P. miniatus and P. harmaticus are from Northern India and Northern China respectively. CALLICHROMINjE. CHLORIDOLUM. Chloridolum, J. Thomson, Syst. Ceramb. p. 174. CHLORIDOLUM THOMSONI. Callichroma thomsoni, Pascoe, Trans. Ent. Soc. ser. 2. v. p. 24. |
