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Show 1897.] PHYTOPHAGOUS COLEOPTERA OF AFRICA. 545 thickened, of nearly equal length, terminal joints scarcely thickened, elongate; thorax one-half broader than long, the sides perfectly straight, gradually narrowed in front, the angles acute, the posterior ones with a long hair, the surface almost subcylindrical, closely and strongly rugose-punctate, the interstices confluent, the punctures round and deep, of greenish aeneous colour; scutellum subquadrate, aeneous ; elytra broader at the base than the thorax, obscure fulvous, with a slight metallic lustre, very feebly depressed below the base, the margins narrowly blackish green, the surface deeply and regularly punctate-striate, the striae rather closely placed, the interstices flat, with a few minute punctures here and there, shoulders prominent, smooth, the sides of the elytra strongly deflexed: underside dark fulvous or piceous, impunctate; prosternum narrowed between the coxae, smooth; legs flavous, unarmed, posterior femora with an extremely small tooth ; claws bifid ; anterior margin of the thoracic episternum strongly rounded. Hah. Madagascar, Diego-Suarez. Coll. M . Alluaud and m y own. IVONGIUS ABBREVIATUS, n. sp. Pale testaceous, antennae with the intermediate and the apical joints black; thorax fusco-aeneous, finely punctate ; elytra punctured below the base only, the sutural and lateral margins and a short stripe at the middle greenish-aeneous. Length 1^ line. Var. Thorax and underside pale fulvous, elytral stripe absent. Head wdth a few fine punctures, the clypeus not separated from the face ; eyes oblong, widely separated, narrowly notched; antennae extending to the middle of the elytra, rather slender, testaceous, the sixth and seventh and the apical three joints black, second joint as long as the third but much thicker, terminal joints slightly thickened; thorax nearly twice as broad as long at the base, narrowed in front, the sides nearly straight, the anterior angles slightly produced, posterior margin broadly rounded at the middle, the surface very finely and sparingly punctured, dark fulvous or fuscous with a metallic aeneous lustre ; scutellum transverse, aeneous ; elytra subcylindrical, with a shallow depression below base, nearly impunctate, except below the basal portion, where some short rows of deep punctures are placed, the one within the shoulder extending to the base, the others all abbreviated, traces of rows of very fine punctures are also seen under a strong lens at the posterior portion, the suture and lateral margins narrowly greenish aeneous, a similar coloured short longitudinal stripe is also placed at the middle of each elytron, the rest of the surface is pale testaceous as well as the underside and legs ; femora unarmed, tibiae emarginate, claws bifid. Hab. Madagascar. In the variety the elytral spot is absent, the thorax as well as the underside is of a darker colour than the rest of the body and without metallic gloss. I received three specimens from M . Don-kier of Paris. |
