OCR Text |
Show 1866.] MR. F. P. PASCOE ON THE COLEOPTERA OF PENANG. 525 ridge, the apex nearly rounded or very slightly truncate, two white bands, the anterior interrupted at the suture and declivous portion, and placed midway between the base and posterior band, the latter continuous or nearly so, and much nearer to the anterior band than to the apex ; abdomen sometimes entirely black; antennae with the last six joints reddish yellow. Length 6-7 lines. EURYARTHRUM EGENUM. E. atrum ; elytris bifasciatis, basi paulo planatis, hand declivis, apice rotundatis; ant. art. ult. quinque vel sex rufo-ochraceis. Black, with a narrow mesial line between the eyes, and a circular impression beneath them ; prothorax slightly produced at the sides, margined with white posteriorly ; scutellum small, triangular ; elytra depressed at the base, very slightly flattened, not declivous at the sides, the apex rounded, two white bands, the anterior interrupted at the suture and side, the posterior continuous, the first a little nearer the base than the second is to the apex; antennae from the apex of the sixth or seventh joints reddish yellow. Length 6 lines. EURYARTHRUM ATRIPENNE. E. supra totum atrum, margine postico prothoracis excepto; elytris planatis, apice oblique truncatis ; ant. art. ult. sex rufo-ochraceis. Black, with a deeply impressed mesial line between the eyes and a circular impression beneath them ; prothorax somewhat oblong, the sides nearly round, the posterior margin edged with white ; scutellum small, subtriangular; elytra entirely black, flattened, the sides doubly declivous (forming two lines), the apex obliquely truncate ; antennae with the last six joints reddish yellow. Length 6 lines. ASMEDIA. Antennae apicem versus crassiores, articulis haud planatis. Prothorax lateraliter angulatus. Prosternum haud productum. Head elongate, rather concave below the eyes; mandibles produced. Eyes large, lateral, narrowly emarginate. Antennae shorter than the body, moderately distant at the base ; the scape short, ob-conic ; the third joint longest; the remainder gradually thicker to the eighth, not flattened or produced at the apex. Prothorax short, broader than the head ; the sides angulated. Elytra narrow; the sides gradually receding to the apex. Legs unequal; the posterior pair elongate. Anterior coxae globose ; their acetabula narrowly angulated. Prosternum not produced. Mesosternum simple. The species on which this genus is founded bears an extraordinary resemblance to Euryarthrum, but its antennae are those of Pachyteria, two genera certainly very different in general appearance, notwithstanding many characters in common ; and, the latter being closely related to Callichroma, we might be led to regard all these |