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Show 144 MR. M. JACOBY ON PHYTOPHAGOUS COLEOPTERA. [Feb. 5, 7. Descriptions of new Species of Phytophagous Coleoptera. By M A R T I N JACOBY. [Received January 10, 1878.] Family EUMOLPID^E. Genus CHALCOPHANA. 1. CHALCOPHANA RUFIPENNIS, sp. nov. Above, shining bright rufous; below, black; legs testaceous; head with a median depression, impunctate, labrum and antennae light testaceous ; thorax finely and very sparingly punctate, together with the head rufous; elytra of the same colour, distinctly and regularly punctate-striate on the disk, more irregular towards the sides, where also three distinct ribs or costae are visible running parallel to each other. Underside black, with a metallic green tint; legs and tarsi yellowish or testaceous. Length 4 lines. Hab. Costa Rica. Collected by M r . Rogers. This species is closely allied to C. discolor of v. Harold, but differs abundantly in the coloration of the antennae, the underside, and legs. 2. C H A L C O P H A N A C O S T A T I P E N N I S , sp. nov. Upper and underside rufous testaceous ; antennae black, the basal three joints ferruginous ; femora red; tibiae and tarsi black ; head minutely punctured, with a fovea between the eyes ; thorax with a few minute punctures; scutellum smooth ; elytra each with about seven distinct costa?, all of which, with the exception of the fifth and sixth, commence below the transverse and deeply marked basal depression; the fourth, fifth, and sixth costae united at a little distance from the apex ; the interstices deeply punctate, the punctures united in pairs. Length, 3 to 3 | lines. Hab. Chontales, Nicaragua. This species, although closely allied to C. discolor, Harold, and C. rufipennis above described, is distinguished from both by the strongly raised costae on the entire disk of the elytra and by the entirely black tibiae. Genus C O L A S P O I D E S , Castelnau. 3. C O L A S P O I D E S VIRIDICOLLIS, sp. nov. Oblong-ovate, convex, fulvous above ; head, thorax, and a broad margin round the elytra bright metallic green ; head sparingly but deeply punctate, with a deep longitudinal groove; antennae with the first six joints, the labrum, and palpi fulvous, the last four joints of the antennae much depressed and widened, of a fuscous colour; thorax with the anterior and posterior margin gradually produced in the middle, the sides evenly rounded, with a shallow "but distinct |