OCR Text |
Show 162 MR. M. JACOBY ON N E W [Feb. 19, and another smaller one near the margin complete the sculpture of the elytra, which are closely punctured and of a violaceous black colour ; the pygidium and the underside are rugosely punctured, the anterior legs nearly entirely fulvous, the posterior ones more or less stained with black, the tarsi are broad and transverse. Hab. Brazil, Goyaz (Deyrolle). This species must surely be closely allied to C. lima Lac. and several others contained in that section, but does not agree with either of them ; the elongate shape and the coloration are similar to those of C. elongata, but it is a very much smaller species and the sculpturing of the thorax is quite different. In C. lima the latter part is likewise provided with three tubercles, but they are placed at the sides and not in front; the elytra in the last-named species are likewise provided with six tubercles, while here no tubercles are visible except near the apex and the ridges are very distinct and acute ; the general colour is not black, but bluish or violaceous. In one of the specimens the thorax shows no trace of fulvous except at the apex of the two frontal tubercles ; if looked at sideways, its elevated portion ends in a somewhat triangular ridge posteriorly. CHLAMYS PERUANA, sp. n. Obscure cupreous, the antenna? and tarsi fulvous ; thorax with the middle portion strongly raised, canaliculate at the top with transverse ridges, sparingly punctured and finely strigose; elytra deeply and sparingly punctured, the suture entirely smooth, the disc with some strong tubercles, notably two transverse ones at the middle and four or five near the apex. Length 3 millim. Head with a longitudinal depression at the vertex, scarcely punctured and finely strigose ; antennae pale fulvous, the last six joints thickened but not very strongly transverse ; thorax with the middle portion strongly raised into a round elevation, the middle of which is canaliculate and bounded laterally at the posterior portion by acute ridges (if viewed sideways), which extend downwards at the sides in a kind of network, a slight callosity is also visible between the elevation and the lateral margins, the interstices are very sparingly punctured but finely strigose, the auterior margin is also accompanied by a row of distinct punctures; scutellum of usual shape, strongly transverse ; elytra subquadrate, scarcely constricted at the middle, each elytron with two short longitudinal ridges (near the suture and at the middle), which are joined at the middle in shape of a semicircle, forming strongly raised acute tubercles ; if looked at sideways, another compressed ridge runs from the middle to the apex, where it ends in three or four highly raised tubercles, the interstices are strongly but remotely punctured and, like the other parts, finely strigose ; the underside and legs very obscure cupreous, the breast strongly punctured, the abdomen with a tubercle or callosity at the sides, the pygidium with a deep sulcus |