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Show 926 MR. M. JACOBY ON NEW [Dec. 1, the lateral and sutural margin, a spot at the shoulder, another below the base, and three placed transversely below the middle, dark brown. Length 7 lines. Head closely and finely punctured, the anterior margin of the labrum fulvous; antennae extending to the base of the thorax, the seven lower joints piceous and shining, the four terminal ones and the sides of the two preceding fulvous, the apical joints slightly longer than broad. Thorax nearly three times as broad as long, the sides nearly straight at the base, rounded towards the apex, the anterior angles acute; surface punctured like the head, but the punctures more remotely placed. Scutellum impunctate, piceous. Elytra closely and finely punctured, the punctuation arranged in irregular double and treble lines, and surrounded by a ring of darker green than that of the ground-colour, the sutural and lateral margins narrowly piceous, this colour widened below the base at the suture into a triangular-shaped broad spot; a similarly coloured small spot is placed at the sides and close to the latter, another one at the shoulder, and three placed transversely below the middle at the disk of each elytron ; mesosternal process short and stout. Hab. Amazons, St. Paulo d'Olivenca. (Coll. Oberthur and my own.) In the pattern of the elytra D. gratiosa resembles D. imperialis, Stal, and D. hybrida, Jac, but differs entirely in its coloration and the fulvous apical joints of the antennae. DORYPHORA OBERTHURI, Sp. nOV. Below greenish black ; above metallic blue. Thorax dilated at the sides, wider than the elytra, remotely punctured ; elytra closely and semiregularly punctate-striate. Length 8 lines. Plead finely and rather closely punctured, metallic green or blue ; the anterior margin of the labrum and the jaws covered with lon» yellowish hairs; antennae not extending much further than the base of the elytra, the first six joints metallic blue, the rest black. Thorax wider than the elytra, the sides very greatly rounded and widened towards the base, the posterior margin produced towards the middle; surface covered with larger and smaller punctures, irregularly and not very closly placed, the dilated sides entirely impunctate, the lateral margin accompanied by a single row of deep punctures. Scutellum about as broad as long, impunctate. Elytra very convex and parallel, narrower at the base than the thorax, the disk rather closely punctate-striate, the punctures, however, not very regularly placed and greatly diminishing in size towards tbe apices ; the interstices impunctate, here and there aciculate; the breast black; the abdomen and legs metallic green; the mesosternal process rather short, but slightly curved and ending in a slightly thickened point. Hab. Amazons, St. Paulo d'Olivenca. (Coll. R. Oberthur and Jacoby.) Allied to D. dilaticollis and D. euchalca, Stal ; but distinguished by the extremely rounded, not angulate, sides of the thorax, and by |