OCR Text |
Show 238 MR. F. P. PASCOE ON THE COLEOPTERA OF PENANG. [May 8, Tawny brown, thickly pubescent, everywhere, except the under surface, clothed with short erect setulose hairs; head with sparse greyish hairs, behind the eye a yellowish spot, which corresponds with another on the prothorax, the latter turgid in the centre and expanded at the base ; scutellum nearly triangular ; elytra remotely and irregularly punctured, obscurely varied with dark brown, particularly two flexuous marks which enclose near the shoulder a pale yellowish spot; body beneath dark chestnut-brown, subnitid, minutely pubescent; legs and antennae tawny brown, obscurely varied with greyish. Length 41 lines. A somewhat broader species than Sodus verticalis, and otherwise very distinct. Sodus is a somewhat isolated genus, differing from the other genera of its subfamily in the rounded apex of the scape, not dilated nor cicatricose, and in the presence of setulose hairs clothing every part of the insect, except the breast and abdomen. APOMECYNIN.E. CENODOCUS. Cenodocus, J. Thomson, Syst. Ceramb. p. 47. CENODOCUS ADUSTUS, Pascoe, Long. Malay, p. 142, pi. 10. f. 3. Mr. Wallace's specimen of this species is from Sumatra. M. Thomson's type (C. antennatus) is from Java. CENODOCUS GRANULOSUS. (PI. XXVI. fig. 12.) O.ferrugineo-griseus; elytris singulis medio impressione obliqua instructis; tarsis concoloribus. Derm black, closely covered with a coarse rusty-grey pile; head rugose in front, the pile sparsely distributed; prothorax oblong, with numerous large foveolate punctures; scutellum semilunar; elytra short, strongly punctured, with here and there black glossy granules between them, from near the suture at about the middle of each elytron a large shallow impression proceeds outwards and downwards, this is nearly free from punctures or granules, and is of a lighter colour than the rest; body beneath and legs with a coarse greyish pile; antennae brown, the fringe, apex of the fourth, which is otherwise white, and the remainder of the joints black. Length 6 lines. This is a well-marked species belonging to a well-marked genus. The antennae are unusually short, even for this subfamily, and the joints of very unequal length, the last seven, for instance, being together shorter than the third ; this joint is feathered as it were on two sides by densely compacted hairs. In this species the feathering does not extend to the base of the joint. The scape and also the second joint have also slighter plumes beneath, so far as the above species are concerned, but in M. Thomson's species no mention is made of the plume on the scape. |