OCR Text |
Show 1901.] PHYTOPHAGOUS COLEOPTERA. 163 at the sides and a feeble central ridge, the apex of the tibiae and tarsi more or less fulvous. Hab. Peru. A small species, principally distinguished by the very highly raised and deeply canaliculate posterior portion of the thorax in connection with the obscure general cupreous colour. CHLAMYS INDICA, sp. n. (Plate XIV. fig. 9.) Subquadrate and broad, black, opaque ; the basal joint of the antennae, the labrum, the anterior femora, and the tarsi fulvous ; thorax finely rugose, the middle portion but moderately raised with longitudinal sinuate ridges ; elytra more strongly rugose, with a central transverse and compressed tubercle at the middle and another below the latter, and some longitudinal short tubercles at the base and near the apex ; pygidium tricarinate. Length 2 | lines. Head flat, variegated with black and fulvous, closely and finely punctured, each puncture provided with a short yellow hair ; labrum and palpi fulvous; antennae fuscous, the basal joint fulvous ; thorax very closely punctured, the sides with a small callosity, the middle portion very moderately and obliquely raised, narrowly sulcate at the top of the posterior portion, with two sinuate but little raised ridges running downwards at each side towards the anterior margin, the inner one of them forms the limit of the median sulcus above ; scutellum finely carinate ; elytra with the suture crenulate throughout, the middle of the base with a compressed tubercle, a sinuate ridge runs parallel with the suture from the base and ends below the middle in another strongly raised transverse tubercle, a similar tubercle precedes the latter one at the middle of the outer disc and forms a ridge which extends upwards to the shoulders, a third and less strongly marked ridge is placed near the lateral margins, the apical portion of the elytra is occupied by another semicircular strong ridge, which is highly raised near the suture, from where it turns outwards and is lost near the margins, the interstices between all these ridges are strongly rugose or uneven ; the breast closely rugose-punctate, the anterior femora and the tarsi fulvous, the pygidium with a central and a lateral sinuate ridge, finely punctured. Hab. India orient. Allied to C. fulvipes Baly, likewise from India, but larger, the head pubescent, the sculpturing of the elytra quite different as well as the colour of the legs. CHLAMYS SUMATRANA, sp. n. Elongate, black, the head and thorax closely and finely reticulate-rugose, the basal portion of the latter feebly raised, not divided, more strongly transversely rugose ; elytra closely and deeply foveolate-punctate, with a single distinct tubercle at the apex near the suture, the latter finely crenulate ; pygidium finely rugose. Length 4 millim. |