OCR Text |
Show 1902.] OF AMERICAN COLEOPTERA. 191 distinct, eyes oblong; antennae extending beyond the middle of the elytra, black, the basal joint fulvous, the third and following two joints elongate, equal; thorax strongly transverse, slightly narrowed anteriorly and at the base, the sides rounded anteriorly, with a very narrow margin, the surface impunctate, light fulvous ; scutellum of similar colour; elytra very distinctly, closely, and somewhat rugosely punctured, with some very obsolete longitudinal sulci, dark violaceous blue; below and the legs pale fulvous, the tarsi infuscate. Hab. Brazil. Of this species I know only a single specimen, which is in my collection. It is allied to C. violaceipennis Clark, but the elytra are without the flavous lateral margins, the tibiae are fulvous, not black, and the antennae have the basal joint fulvous only. OCNOSCELIS BOLIVIANA, sp. n. Testaceous ; antennae greenish black ; head and thorax greenish or fulvous, nearly impunctate; elytra closely and distinctly punctured, testaceous or obscure fulvous, the base broadly and the sides narrowly metallic green. Length 5 millim. Male. Of ovate and depressed shape, the head strongly punctured at the vertex, more or less metallic greenish, the frontal tubercles very strongly developed, pyriform ; antennae as long as the body, blackish, the basal joint strongly thickened, the third and fourth equal, terminal joints very elongate and slender; thorax comparatively long, scarcely one-half broader than long, the sides but feebly rounded, with a narrow flattened margin, the posterior angles acute, the anterior angles obsoletely thickened, the disc nearly impunctate and smooth, more or less metallic green, with the sides narrowly fulvous or entirely of the latter colour; scutellum blackish ; elytra closely and rather strongly punctured, obscure fulvous, the base more or less metallic green, this colour also extending down at the sides to about the middle of the elytra; below and the legs testaceous, the tibiae and tarsi generally darker, the intermediate tibiae of the male strongly curved. Hab. Bolivia. Like the other three species of this genus, the present one seems rather variable in regard to coloration, but in seven specimens before m e the colour of the elytra is constant. The shape of the thorax and the impunctate disc of the latter distinguish the species from its allies. In the female the antennae are shorter, the thorax is more transverse and is finely punctured. NEPHRICA Harold. This genus has been established by von Harold on a species having the general appearance of a Disonycha or Asphoera, but in which the eyes are reniform and emarginate, the sides of the thorax with a narrow margin, and the tibiae without any emargi- |