OCR Text |
Show 990 MR. M. JACOBY ON PHYTOPHAGOUS COLEOPrERA. [Dec 3, punctures ; the suture has also at its posterior part a deeply impressed line running parallel with it at each side. The elytra are of a light flavous, shining, the entire suture greenish or bluish black, which colour is gradually narrowed towards the apex. Underside and legs black with a bluish tint. Hab. Columbia. In colour this species approaches close to D. limbatipennis, Stal; but the want of the outer marginal vittse, together with the roundish shape, will distinguish the species before us from the above insect. 16. DORYPHORA VITTATIPENNIS, sp. nov. Black. Head and thorax opaque. Elytra strongly semipunctate-striate, black, shining ; each elytron with five narrow longitudinal flavous stripes. Length 6 lines. Head finely punctate ; antennse black, shining. Thorax deeply and irregular punctured, the intervals partly convex ; sides narrowed at the base, from there rounded to the apex. Scutellum smooth, triangular, black. Elytra parallel, convex, deeply punctate, striate near the suture, more irregularly towards the sides ; black, shining, each elytron with five narrow flavous vittse at equal distances from each other, of which the outer one is the broadest, all of which are confluent at the apex and extending to the base. Underside and legs black. Var. Elytra with only the outer vittse entire, the sutural one only visible at the posterior third, the other stripes entirely absent or only partially visible near the apex. Hab. Columbia. Collected by Mr. Salmon. 17. DORYPHORA POROSA, sp. nov. Broadly ovate, very convex, piceous below. Head and disk of thorax black; sides of latter testaceous. Elytra deeply foveolate, the intervals irregular transversely reticulate, dark brown. Length 7 lines. Head opaque, with a few very minute punctures; antenna? long, scarcely thickened towards the apex, fuscous. Thorax with the anterior and posterior margin parallel in the middle, the anterior angles acute and much produced, the sides much flattened and slightly thickened ; disk minutely punctate, of the same colour as the head, the sides light testaceous, impunctate. Scutellum broad, smooth, piceous. Elytra convex at their first third, thence suddenly declining and subdepressed towards the apex, uniformly dark brown; the suture shining, piceous, smooth ; surface deeply punctate, striate near the suture, foveolate towards the sides, the intervals raised and connected partially by transverse short costa?, forming a kind of network towards the sides. Femora greenish seneous ; tibia? piceous. Hab. West Columbia. Collection Jacoby. |