OCR Text |
Show 1903.] SOUTH-AMERICAN COLEOPTERA. 43 portion of the elytra; the suture likewise greenish black; the epipleura? blackish ; the mesosternal process long and stout. Hab. Colombia. (A single specimen.) At once to be separated from other nearly similarly marked species by the colour of the antennae and other details. DORYPHORA STERNALIS, Sp. nOV. Greenish black ; thorax narrow, subquadrate, extremely closely and distinctly punctured; elytra geminate punctate-striate, flavous, with the suture and three narrow elongate stripes on each greenish; mesosternal process extremely long. Length 11 millim. Head rather closely punctured, labrum fulvous, stained with black; antenna? with the terminal joints twice as long as broad, black; thorax twice as broad as long, the lateral margins perfectly straight from the middle downwards, almost slightly concave, the anterior angles pointed ; the disc broadly flattened at the sides, extremely closely punctured, less crowded at the middle, the interstices slightly wrinkled; elytra distinctly wider at the base than the thorax, strongly geminate punctate-striate near the suture, closely and irregularly punctured at the sides, flavous, the suture and three posteriorly connected stripes, which are wider than the spaces separating them, metallic greenish, the outer interstice near the lateral margins of double the width of the others; the mesosternal process extremely long, extending to the head. Hab. Ecuador. (A single specimen.) This species has the longest mesosternum of any Dorypihora I am acquainted with ; it is very pointed and slightly curved. DORYPHORA NIGROVIOLACEA, Sp. nOV. Metallic greenish black below, above blackish purplish, subopaque ; thorax obscure greenish, nearly impunctate; elytra extremely finely punctured, with some obsolete more regular rows of punctures here and there. Length 11 millim. Head impunctate; antenna? extending beyond the base of the elytra, black, the basal two joints fulvous below, terminal joints widened, longer than broad; thorax rather more than twice as broad as long, the anterior angles pointed, the surface entirely impunctate, of silky appearance; elytra very finely and sparingly punctured, with some punctures placed in distant rows; mesosternal process moderately long. Hab. Venezuela ? (A single specimen.) This is a very sombre-coloured species, of purplish black, with very finely punctured elytra, of which the rows can only be seen if examined carefully; I know of no other similarly sculptured species. The greatest height of the elytra is at the base if the insect is examined sideways. |