| OCR Text |
Show 570 MR. M. JACOBY ON T H E [May 18 widely separated, extending to about the middle of the elytra, shorter in the female, black, the lower four joints testaceous, the second and third joint short, equal, fourth and following joints longer, equal; thorax scarcely one-half broader than long, the sides rounded before the middle, very little constricted at the base the basal margin obliquely rounded at the angles, the surface rather convex, not perceptibly punctured, testaceous, very shining; elytra wider at the base than the thorax, of the same colour, very minutely and rather closely punctured: underside pale piceous; legs rather robust, testaceous, the tibiae mucronate, the first joint of the posterior tarsi as long as the following two joints together; claws appendiculate; the anterior coxal cavities open; prosternum very narrow, convex between the coxas. Hab. Mashonaland (67. Marshall). Coll. Brit. Mus. and m y own. One of the smaller species, which may be known by the piceous head and underside and the impunctate thorax. MALACOSOMA PALLIDUM, n. sp. Pale testaceous, shining; thorax subquadrate, impunctate; elytra microscopically punctured. Length 2 | lines. Much larger than the preceding species and of very pale testaceous colour; the head broad, impunctate, the frontal tubercles broadly transverse, tbe apex of the clypeus very broad, apex of the mandibles black; the antennae rather widely separated at the base, testaceous, the second and third joints short, nearly equal, all the following joints elongate ; thorax one-half broader than long, subquadrate, the sides very slightly rounded in front of the middle, anterior angles oblique, indistinct, posterior margin somewhat sinuate, the surface entirely impunctate; scutellum triangular ; elytra scarcely wider at the base than the thorax, sub-cylindrical, extremely minutely punctured, only visible under a strong lens: underside and legs coloured like the upper surface; all the tibiae mucronate, the metatarsus of the posterior legs as long as the following two joints together; the prosternum in shape of a very narrow ridge, convex ; the anterior coxal cavities open. Hah. Mashonaland (67. Marshall). A single specimen in the British Museum. This Malacosoma may be known by its uniform very pale colour and the impunctate thorax and extremely finely punctured elytra. The following species is closely allied. MALACOSOMA DALMANI, n. sp. Pale testaceous ; antennas long and slender; thorax transverse with rounded sides, nearly impunctate ; elytra very finely and closely punctured. Length 2 ±-3 lines. Head rather long, impunctate, the frontal elevations transverse, bounded behind by a deep groove ; carina acute, linear ; eyes large |
