OCR Text |
Show 440 MR. M. JACOBY ON NEW COLEOPTERA. [May 20, 3. DISONYCHA TRISTIS, sp. nov. Ovate, convex, black, opaque. Thorax testaceous,with five piceous spots; elytra black, opaque, alutaceous, with two very narrow longitudinal flavous vittae, joined at the apex. Length 3 lines. Head deeply and very closely punctate, with a transverse fovea between the eyes, and a short longitudinal raised elevation towards the vertex; antennae with the fourth joint longer than the third, elongate to the fourth joint, from there with distinctly shorter and thicker joints, black, base and underside of first three joints testaceous. Thorax rather narrow, transverse, base sinuate each side, surface finely and irregularly punctate, testaceous, four transversely placed spots near the anterior margin and another near the base piceous; scutellum opaque; elytra a little widened posteriorly, rather convex, finely alutaceous, black, without any gloss, with tw^ very narrow longitudinal vittse, of which one is placed near the sutural, the other near the lateral margin, and which are joined near the apex, of a flavous testaceous colour. Below and legs black, also opaque. Hab. Brazil. This species may be distinguished from others similarly marked by the coarse punctuation of the head, the opaque colour of the elytra, and the very narrow vittae of the latter. Genus NEPHRICA, Harold. 4. N E P H R I C A MARGINATA, sp. nov. Elongate-ovate ; black, very shining. Head, thorax, and lateral margins of the elytra, as well as the apex of latter, light testaceous. Length 3f-4 lines. Flead impunctate, eyes moderately deep, emarginate, kidney-shaped ; base of labrum and the palpi dark piceous; antennae robust, third and fourth joints equal, the two basal joints stained below with flavous, the rest black. Thorax narrow, its sides broadly margined, tbe anterior angles convex, obtusely rounded outwards, basal margin rather deeply concave at either side, surface irregularly depressed, with a short oblique groove near the posterior angles; disk almost impunctate, with a row of deeper punctures running parallel with the lateral margins. Scutellum smooth, broad, apex rounded; elytra rather depressed below the base, distinctly margined and very minutely punctate, of a very shining deep black colour, the entire lateral margins narrowly, as well as the apex more widely, light testaceous-coloured. Underside and legs black, claws not swollen. Hab. Peru. Two specimens in m y collection. Genus HOMOPHCETA, Erichs. 5. H. VARIABILIS (eequatorialis, Harold?). Elongate, subparallel, black, above flavous; elytra with the lateral |