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Show 236 MR. M . J A C O B Y O N P H Y T O P H A G O U S C O L E O P T E R A [Mar. 6, strongly convex, finely punctate-striate, dark metallic blue; femora minutely toothed. Length 5 millim. Of robust and strongly convex shape, the head broad, impunctate ; the epistome separated from the face, transverse ; labrum and palpi fulvous, the eyes surrounded by a narrow sulcus, large, distinctly emarginate ; antennae slender, black, the lower six joints fulvous,'second joint thickened, as long as the third joint; thorax twice as broad as long, the sides nearly straight, the angles acute, the posterior margin produced and rounded at the middle, the surface closely and rather strongly punctured ; scutellum fulvous ; elytra subcylindrical, not depressed below the base, dark metallic blue, finely punctate-striate, each elytron with ten rows of punctures, the first sutural one short, the interstices flat, here and there with a few minute punctures ; below and the legs black, shining, the femora with a very small tooth ; the prosternum broad, longitudinally sulcate at the sides. Hab. Salisbury, Mashonaland, on mimosa (67. Marshall). Larger than R. cyanipennis Gerst. and R. recticollis Jac. ; the thorax more strongly punctured and the underside and legs deep black. RHEMBASTUS UNIFORMIS, sp. n. Entirely pale fulvous, the apical two joints of the antennae fuscous ; thorax finely and remotely punctured : elytra very finely puuctate-striate ; femora unarmed. Length 5 millim. Head with a few fiue punctures and a longitudinal groove at the middle ; clypeus separated from the face by a transverse groove, more closely punctured than the head, of transversely subquadrate shape, its anterior margin emarginate; antennae extending to the middle of the elytra, flavous, the apical two joints fuscous, the second and the following four joints of equal length, the others slightly thickened ; thorax twice as broad as long, the sides straight, the posterior margin produced at the middle, oblique at the sides, the anterior margin straight, the disc sparingly covered with fine punctures ; scutellum obloug; elytra very convex, finely punctate-striate, the punctures rather irregularly placed, uearly absent at the apex, the suture raised at the posterior portion, preceded by an impressed line ; below and the legs pale fulvous. Hab. Salisbury, Mashonaland, on mosasa (67. Marshall). Much larger than R.fiavidus Lefev., of uniform coloration, the thorax much more finely and sparingly punctured, and the femora unarmed. RHEMBASTUS INTERSTITIALIS, sp. n. Fulvous, the apical joints of the antennae black ; thorax transverse, distinctly and subremotely punctured; elytra strongly punctate-striate, the interstices extremely minutely punctured. |
