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Show 342 MR. M. JACOBY O N N E W [June 5, anterior margin of the epistome triangularly emarginate ; jaws large and prominent. Antennae black, the three lower joints fulvous, the third joint very small, half the size of the second. Thorax three times broader than long, the sides nearly straight, the posterior margin rounded and produced in the middle, perfectly straight at the sides, the anterior margin narrowly raised at the sides ; scutellum with a raised central ridge. Elytra very finely and rather closely punctured, the punctures arranged in irregular rows near the suture, fulvous, the base with a transverse black band extending to the suture but not quite to the lateral margin, its posterior edge rather deeply indented at the middle, another band, not quite extending to either margin and slightly oblique, is placed immediately below the middle. Underside and legs black, clothed with yellow pubescence, the base of the tibse fulvous. C. bifasciata, although very closely allied to several almost similarly coloured species (C. nair, L a c , C. kiisteri, Kraatz), seems yet sufficiently to differ to justify its separation; the first elytral band extends quite to the basal and sutural margin, although not quite to the sides, and the second band is placed immediately below the middle, not so close to the apex as in several allied species ; the fulvous base of the tibiae, the rest of the underside being black, will also help to distinguish C bifasciata ; the female has, as is usual, a much smaller head. Many specimens were obtained. ACROTHINIUM CUPRICOLLE, n. Sp. Metallic blue or green; antennae and legs black; head, thorax, and scutellum reddish cupreous, finely pubescent, closely punctured ; elytra closely punctate-striate, violaceous blue, the suture greenish, the lateral margin bright cupreous. Length 3 lines. Head deeply and closely punctured, strigose on the vertex, the latter piceous at the base, the other portion bright cupreous ; labrum and jaws black ; antennae more than half the length of the bod)', the terminal joints slightly thickened and short, the basal two joints more or less fulvous below. Thorax about one half broader than long, subcylindrical, the sides nearly straight, slightly narrowed towards the base, the surface sparingly covered with fulvous pubescence, bright metallic cupreous, strongly and closely punctured ; scutellum metallic greenish cupreous, pubescent. Elytra with a distinct oblique basal depression and a longitudinal groove within the shoulders, closely and rather strongly punctured, the punctures arranged in closely approached semiregular rows, dark metallic violaceous, the suture narrowly metallic green or blue, the lateral margin bright reddish cupreous ; the surface sparingly clothed with stiff blackish hairs. Underside dark blue or greenish, strongly punctured and sparingly pubescent; legs with a slight bluish gloss ; the femora with a very small tooth ; the anterior margin of the thoracic epi-sternum convex. This beautiful species, of which a great many specimens were received from Kiukiang, may be at once known from the only other |