OCR Text |
Show 1880.] PHYTOPHAGOUS COLEOPTERA. 181 Hab. Amazons. Head as broad as long, deeply punctate near the inner orbit of the eyes, and longitudinally grooved in the middle ; antennas entirely fulvous third joint not much longer than the second, apical joints gradually thickened and subquadrate. Sides of thorax flattened and deeply depressed, with a distinct fold running parallel to the lateral margins; anterior angles much thickened, but scarcely produced; surface finely punctate, fulvous, the extreme lateral margins as far as the depressed portion flavous. Elytra widened behind the middle, closely and more strongly punctured than the thorax, flavous; a triangular patch below the base, a transverse broad band immediately below the middle, and another triangular-shaped patch near the apex, together with the suture, fulvous; the colour of the latter widens considerably towards the base and surrounds the scutellum ; none of the above patches touch the lateral or sutural margins. Underside and legs fulvous. Three specimens in my collection. 32. (EDIONYCHIS LATICOLLIS, sp. nov. Oblong-ovate. Piceous below, above ferruginous or fulvous; disk of thorax, a square broad patch at the base of each elytron and another below the middle black. Length 3 lines. Hab. Duefias, Guatemala, and Columbia. Head longer than broad, with the usual transverse groove between the eyes and a few deep punctures at the base; antennae robust, the third joint double the length of the second, black. Thorax about twice as broad as long, comparatively broad, its sides broadly flattened and rounded ; the anterior ngles not produced into a tooth, but thickened and reaching to the middle of the eyes ; posterior margin perfectly straight; surface very minutely punctured when seen under a strong lens, ferruginous ; the entire disk occupied by a transverse black band. Scutellum piceous. Elytra very convex, rather broadly margined, punctured like the thorax; a large, square black patch is placed at the base and extends to the middle, and another one, the posterior margin of which is rounded, is situated immediately below the middle ; neither of these marks extends to the sutural or lateral margins, and the space between them is very narrow. In the specimen from Guatemala the entire head is black, and the space on the disk of the elytra which divides the two patches is stained with flavous hear the suture; but in all other respects the insect resembles completely the Columbian form. Types in Messrs. Godman and Salvin's collection and my own. Note on a formerly described Species. METAXYONYCHA RUFOLIMBATA, Proc. Zool. Soc 1878, p. 987. This species has been erroneously described by me under the above generic name; it is identical with Colaspis cruentata, Lefev. |