OCR Text |
Show 1879.] MR. M. JACOBY ON NEW COLEOPTERA. 443 elytra with a large semitriangular patch at the base, and another from the middle to nearly the apex, of a brownish purplish colour. Length 2\ lines. Vertex of head smooth, impunctate, limited in front by four transversely placed deep punctures, and from the clypeus by several deep indentations; apex of jaws black; antennae robust, all the joints, except the second, of equal length, slightly diminishing, however, towards the apex, of a uniformly fulvous colour, and closely pubescent. Thorax transversely subquadrate, the sides nearly parallel and narrowly thickened, but not depressed ; anterior angles convex, but not produced outwards ; surface impunctate, shining, of a very light testaceous colour; scutellum fulvous ; elytra rather convex, distinctly margined, very minutely punctate, of the same colour as the thorax; each elytron with a large patch at the base, rounded anteriorly, and not touching either tbe margin or the suture, and another one triangularly shaped, the point directed towards the apex, of a reddish-brown colour, with a very distinct purplish gloss. Taking these patches as the ground-colour, they would be limited by the suture (widened anteriorly), a narrow band across the middle, and by the lateral margins of a light flavous colour. Underside testaceous, legs flavous, claw-joint not swollen. Metatarsus as long as the two following joints united. Hab. Amazon. In m y collection. This species is closely allied to A. nobilitata, Fabr.; but the want of the transverse band on the thorax, together with the different shape of the latter, as well as the shape of the patches on the elytra, will distinguish it from that species. 10. ASPH.ERA PALLIDA, Sp. 110V. Broadly ovate, black; apex of abdomen and the thorax more or less fulvous; elytra pale testaceous, shining, impunctate. Length 4\ lines. Head shining black, impunctate, with the usual transverse depression ; antennae of half the length of the body, uniformly black, covered thickly with whitish hairs. Thorax comparatively wide, about twice as broad as long, its sides evenly rounded, narrowly margined, but each side rather indistinctly limited by the more convex disk, the anterior angles very acute and distinctly produced in form of a short tooth, basal margin very slightly sinuate at each side, almost straight. Surface scarcely visibly punctate, of a lighter or darker flavous colour ; scutellum shining black ; elytra slightly wider at the base than the thorax, widened till behind the middle, from there rounded to the apex, distinctly margined, smooth and shining, of a light testaceous colour, more or less stained obsoletely with fuscous in some specimens. Underside and legs shining black, the latter closely pubescent; apex of abdomen fulvous. Posterior thighs very moderately thickened; metatarsus longer than the following joints, the claw simple, not thickened. Hab. Costa Rica. Collected by Mr. Rogers. |