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Show 514 MR. M. JACOBY ON NEW COLEOPTERA. [Julie 5, rated from the head by a rather indistinct transverse groove, punctured a little more distinctly than the head ; labrum fulvous, as well as the first two joints of the antennse, the rest black. Thorax regularly convex, the sides much deflexed anteriorly, all the angles acute, and produced into a short tooth; surface almost smooth, a shallow transverse depression extends across the disk a little behind the middle, and is strongly punctured near the sides. Scutellum nearly as broad as long, smooth, rufous. Elytra wider than the thorax, rufous, shining, distinctly punctate-striate, the strise strongly impressed near the base and diminishing towards the apex. The first stria is very short and the second curved obliquely upwards towards the base; below the basilar space is a shallow indistinct fovea. The seventh and the following strise commence on the hinder portion of the humeral callus, this latter being limited by the strongly impressed sixth stria up to the base of the elytra. Entire underside, with the exception of the abdomen, which is light-fulvous-coloured, black. Intermediate and posterior thighs with a distinct tooth. Length 3 lines. Hab. Madagascar. In the collection of the British Museum and m y own. Genus SCELODONTA, Westwood. 8. S C E L O D O N T A V I R I D I M A C U L A T A , sp. nov. Subquadrate, semiconvex, brownish, opaque. Head with the vertex coarsely rugose, cupreous, lower face indistinctly transversely rugose, shining metallic green at the sides, palpi testaceous, antennse black; thorax subcylindrical, the anterior and posterior margins mnch widened in the middle, closely covered with transverse raised strigse of a brownish purplish colour, with a metallic-green narrow longitudinal stripe in the middle, and the sides to a greater extent ornamented with the same colour. Scutellum pentagonal, entirely green. Elytra much wider at base than the thorax, longitudinally costate throughout, the interspaces deeply punctured and partly reticulate, of the same brownish ground-colour as the thorax, with a transverse band commencing a little below the shoulder, where it is widest, and extending in an oblique direction to a short distance from the suture, of a shining metallic green, while another narrower stripe of the same colour is situated at a short distance from the apex, having an upward direction, and is connected with the apical part of the sutural and exterior margin by a narrow border of metallic green. Underside metallic green. Legs purplish, each thigh armed with a short tooth. Length 3 lines. Hab. Cameroons, Africa. In m y collection. Genus DERMORRHYTIS, Baly. 9. D E R M O R R H Y T I S C E E R U L E A , sp. nov. Elongate, shining, above violet-blue; head slightly convex, with |