OCR Text |
Show 1866.] MR. F. P. PASCOE O N T H E COLEOPTERA OF PENANG. 513 SESTYRA. Antennae lineares, scapo pyriformi. Caput collo constricto, prothorace latius. Tarsi subarquales. Head broad, rather short anteriorly, constricted behind, the forehead concave. Eyes narrowly emarginate, lateral, not approximate above. Antennae sublinear, nearly as long as the body; the scape rather short, claviform ; third joint twice as long as the scape ; the rest gradually shorter to the eighth or ninth. Prothorax subcylindrical, narrower than the head, sulcately constricted at the anterior third and at the base. Elytra narrow, entire, subparallel. Legs unequal, slender; femora thickened towards the apex; tibiae slender ; tarsi subequal. The broad head, strongly constricted behind into a distinct neck, and the pyriform scape are peculiarly characteristic of the curious little Longicorn forming the type of this genus. SESTYRA CEPHALOTES. (PI. XLI. fig. 3.) S. nigra ; prothorace albo bifasciato; elytris fusco-nigris, basi brunneo plagiatis; pedibus articulisque duobus basalibus an-tennarum nitidis. Black, nearly glabrous ; head finely punctured, a few silvery hairs in front; prothorax closely punctured, silvery-white hairs lining the grooves and forming two bands; scutellum narrow at the base, gradually widening behind and truncate, covered with a silvery-white pubescence; elytra closely punctured, each puncture with a short white procumbent hair, at the base an oblong patch of reddish brown extending nearly to the middle, the apex pointed; body beneath with a close silvery pile; legs glossy black, the anterior tibiae and tarsi luteous ; antennae with the basal and second joints black, shining, the remainder pale brownish. Length 4 lines. MlMISTENA. Antennae setacear, scapo pyriformi. Caput collo subconstricto, prothorace angustius. Tarsi postici et intermedii elongati. Elytra integra. Head not elongate anteriorly, slightly constricted behind, the forehead broad. Eyes lateral, narrowly emarginate, not approximate above. Antennae setaceous, longer than the body, ciliated beneath; the scape pyriform ; third joint longest; the fourth short; the next two gradually increasing in length ; the seventh to the tenth slightly decreasing; the eleventh as long as the third. Prothorax broader than the head, subcylindrical, but flatfish above, constricted anteriorly. Elytra not wider than the prothorax, rather contracted behind the shoulders, entire. Legs unequal; femora thickened towards the apex ; tibiae slender; tarsi with the basal joint of the intermediate and posterior pair elongate. |