OCR Text |
Show 512 MR. M. JACOBY ON NEW COLEOPTERA. [June 5, where evenly aud finely punctate ; scutellum broadly triangular, a few fine punctures at each side, black. Elytra about twice and a half as long as the thorax, distinctly widened towards the middle and rounded at tbe apex, regularly punctate-striate, the punctures only disappearing at the extreme apex, the interstices smooth and shining; their whole basal half is occupied by an almost square patch of bright fulvous, while the posterior part is shining black, and has at its apex another rounded spot of fulvous. Legs black, covered, as well as the entire underside, with fine silky whitish hairs. Length 2 lines. Hab. Chontales, Nicaragua. Collected by Mr. M . Janson. This species will be easily distinguished from D. scutellaris by the strong punctation of its head, the colour of the antennse, and the design of its elytra. EUMOLPID^E. Genus METAXYONYCHA, Chevrol. 4. METAXYONYCHA TRIDENTATA, nov. sp. Subcylindrical, semiconvex, testaceous. Head with a distinct fovea in the middle and an oblique depression below each eye, both of which are deeply but sparingly punctate, lower part of face sparingly punctate, testaceous, apex of mandibulae black; antennse nearly as long as the body, joints 5, 6, 7, and the last fuscous, the rest flavous. Thorax very convex on the disk, anterior and posterior margins parallel, the angles tuberculate; the lateral margins very widened in the middle, and at that place very distinctly three-dentate. A profound impression is placed on the surface on each side near the middle ; and the entire disk is irregularly and coarsely punctured. Scutellum smooth. Elytra much wider than the thorax, the sides parallel, with about ten longitudinal more or less distinct costae, which for the most part unite at their extremities, the intervals of which are coarsely and deeply punctate; each elytron with two transverse spots of a shining metallic light green, the first situated on the shoulder, of a nearly square shape, and extending halfway across the elytra, the second below the middle, of a narrow band-like shape, a little curved, and not touching the sutural margin. Underside light testaceous as well as the legs. Tarsi a little darker. Length 4 lines. Hab. Chontales, Nicaragua. Collected by Mr. Janson. Genus RHYPARIDA, Baly. 5. R H Y P A R I D A MADAGASCARIENSIS, sp. nov. Oblong-ovate, entirely rufous, smooth, shining; head with a more or less distinct longitudinal depression in the middle sparingly but distinctly punctate ; clypeus testaceous, distinctly separated from the face, the anterior edge emarginate and narrowly piceous, surface punctured the same as the head ; labrum dark brown, mandibulse |