OCR Text |
Show 1878.] MR. M. JACOBY O N PHYTOPHAGOUS COLEOPTERA. 149 transverse narrow band in the middle extending from one side other, and a still more narrow and shorter vitta at the apex flavous. Body beneath black ; legs and tarsi testaceous. Length 3 lines. Hab. Panama. 12. DIABROTICA FUSCO MARGINATA, sp. nov. Elongate, convex, light brown above ; head, disk of thorax, and the elytral margin dark fuscous or black; head entirely black, impunctate, with a deep fovea between the eyes, the latter very prominent and black, base of the antennae divided only by a sharp longitudinal ridge ; palpi and antennae entirely flavous ; thorax scarcely wider than long, quadrate, distinctly emarginate at the sides, the latter slightly widened before the middle, from there straight to the base ; surface very obscurely punctate, shining black or fuscous, with the lateral margins flavous; scutellum also of this colour; elytra much wider at the base than the thorax, slightly widened towards the apex, with a narrow but very distinct margin, surface closely and irregularly punctured, of a light brown colour, assuming a flavous hue towards the apex, the base to a greater or lesser extent, and a narrow stripe near the extreme lateral margins not reaching the apex, dark fuscous. Underside, with the exception of the breast (which is black), and legs entirely testaceous. Length 4\ lines. Hab. Volcano of Irazu, Costa Rica. Collected by Mr. Rogers. 13. DIABROTICA MULTIPUNCTATA, sp. nov. Head, thorax, and a narrow sutural and lateral margin of the elytra rufous ; elytra flavous, each elytron with eight small black spots ; head impunctate, with a deep fovea in the middle; antennae robust, dark rufous or fuscous; thorax transversely quadrate, disk bifoveolate, with a black spot in front of each fovea ; scutellum black, impunctate; elytra subdepressed, widened behind, flavous, the spots placed as follows-one immediately below the base near the scutellum, a second one below the first but near the lateral margin, three placed transversely in the middle, a triangular-shaped spot directly below, and two others, transversely placed, at a little distance from the apex, the sutural and lateral margins rufous. Body below black, closely pubescent; femora testaceous, with a black line above; tibiae and tarsi dark fuscous or black. Length 3 lines. Hab. Mexico. Allied to D. mexicana, Harold, but principally differing in the rufous emargination of the elytra. 14. DIABROTICA NIGRO LINEATA, sp. nov. Elongate, light flavous ; head and two longitudinal vittee on each elytron black ; head impunctate, with a deep fovea in the middle ; antennae longer than half the length of the body, with the third |