OCR Text |
Show 50 MR. M. JACOBY ON NEW GENERA AND [Jfl 2. Descriptions of new Genera and Species of Phytophagous Coleoptera. By M A R T I N JACOBY. [Eeceived November 31, 1881.] LAMPROSOMA, Kirby. 1. LAMPROSOMA GRANDE, sp. nov. Subglobular,' very convex, black below, above brilliant metallic green. Head very finely, thorax distinctly punctured ; elytra rather deeply punctate-striate, the interstices finely scratched. Length 3h lines. Hab. Amazons. Head very broad, finely and closely punctured, the front with an obsolete depression ; clypeus separated from the face by a short but deep impression at the sides only, anterior border deeply concave. Labrum fulvous. Jaws and antennae black, the basal joint of the latter metallic green above, fulvous below. Thorax more than three times as broad as long, the sides greatly deflexed, the posterior lobe rounded and large, obliquely and distinctly impressed at each side, surface closely and more distinctly punctured than the head. Scutellum metallic green. Elytra regularly convex, scarcely narrowed behind, the lateral lobe not much produced, subangulate ; each elytron with ten rows of punctures deeply impressed at the base, but much smaller towards the apex, the interstices finely scratched. Prosternum rather longer than broad, its surface with a few deep punctures. A single specimen is contained in m y collection. The present species is allied to L. amethystinum, Lac, L. cunea-tum, Baly, and L. canaliculatum, Baly, but differs from all of them in the more narrow transverse thorax, broader scarcely attenuated shape, the finer punctuation of its head and thorax, and the shape of its clypeus; the shape of the thorax is almost that of Lych-nophaes laticollis, although to a less extent . On the whole the present species bears a great resemblance in shape and colour to the last-named insect; but the appendiculate claws show it to be a true Lamprosoma. LYCHNOPHAES, Lacordaire. 2. LYCHNOPHAES AFRICANA. Broadly ovate, moderately convex, black. Thorax extremely finely punctured and strigose; elytra finely and irregularly punctured, a scutellar spot and a lateral band from the base to the apex metallic cupreous. Length 2 lines. Hab. South Africa. Head convex at the vertex only, subdepressed at the middle, finely longitudinally strigose; epistome limited at each side in front of the eyes by a short transverse depression, Eyes very slightly |