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Show 1877.] MR. M. J A C O B Y O N N E W C O L E O P T E R A . 517 attached to the sutural stripe, causing the latter to assume a widened appearance. Body below and legs lighter or darker brown, meta-sternal process proportionately long, stout, and curved near the apex. Var. Thorax, head, and markings on the elytra dark fuscous or black. Length 4 | lines. Hab. Chontales, Nicaragua. Collected by Mr. Janson. lt is doubtful if this species ought to be retained in the genus Doryphora, as the filiform antennae distinguish it from the other species of this genus, and show rather its affinity to the genus Prosicela of Chevrolat, from which it is, again, distinguished by the strong development of the metasternal process. 13. DORYPHORA SEXMACULATA, sp. nov. Oblong, ovate; head and thorax greenish or brown, elytra greenish black, each elytron with three large fulvous spots. Head closely and finely punctate, with a smooth longitudinal middle line; labrum and palpi pitchy; antennse rather long, gradually increasing in width towards the apex, greenish black or brown ; thorax but little convex in the middle, with the anterior margin slightly sinuate, the anterior and posterior angles very acute, and the surface closely and evenly punctate, the punctuation a little stronger than that of the head ; scutellum triangular, impunctate, shining ; elytra a little wider at the base than the thorax, strongly punctate-striate, tbe striae more regular near the sutural line than near the sides, greenish black, an irregular oblong spot at the base near the scutellum, a triangular- shaped one, of larger size, in the middle, near the lateral margin, and another, of the same size or larger, near the apex of each elytron fulvous ; body below and legs greenish. Length 6 lines. Hab. Peru. Collection Jacoby. This species varies, as the description shows, in colour, from greenish to brown as regards the head, antennae, and thorax, as well as the entire underside, with the legs, but does not differ in other respects. 14. DORYPHORA CHRYSOMELOIDES, sp. nov. Ovate, very convex, and much widened behind, very shining, of a uniform greenish bronze-colour; head with a more or less distinct middle line on the vertex, very irregular, and rather strongly punctate, with a triangular flavous spot near the base; epistome separated from the front by a more or less rounded thin groove, punctured; labrum and mandibular greenish black ; antennae not half the length of the body, the first joints metallic green, the rest violaceous black and transversely subquadrate. Thorax with the anterior margin slightly produced in the middle, and a shallow, more or less distinct fovea near the lateral margins; disk finely punctate, the punctures |