OCR Text |
Show 1903.] SOUTH-AMERICAN COLEOPTERA. 35 Of subquadrate, parallel shape; the head sparingly and finely punctured, dark blue, subopaque, labrum testaceous, stained with black; antenna? extending below the base of the thorax, black, apex of terminal joints fulvous, the latter joints widened but longer than broad ; thorax of usual shape, the sides strongly rounded anteriorly, the anterior angles mucronate, the disc very minutely and rather closely punctured, of the same colour as the head ; scutellum black, shining ; elytra finely punctured in closely approached rows, which are fairly regular even at the sides, the interstices minutely granulate and partly aciculate, their epipleura? blue without, testaceous within, the mesosternal process long and straight. Hab. Peru. (A single specimen.) This species cannot be referred to D. prasina Erichs.: the elytra are violaceous and the rest of the insect is dark blue, not green; the sculpturing of the thorax and elytra is different, and the latter are neither widened posteriorly nor produced at the apex as Stll states in his description of the species. The punctation of the elytra also differs from that of the other blue species from the same locality. DORYPHORA SEMIXIGRA, sp. llOV. Black, the elytra dark metallic green, subopaque ; thorax very closely punctured at the sides; elytra with closely approached, double, irregular rows of punctures. Length 15 millim. Head closely punctured round the eyes, black; antennae with the terminal five joints widened, slightly longer than broad, entirely black; thorax twice as broad as long, the lateral margins straight at the base, rounded near the apex, the anterior margins acutely pointed, the surface flattened at the sides, the latter finely rugosely punctured, the middle sparingly and very finely punctate, black, opaque ; scutellum black; elytra dark green, moderately shining, strongly punctured in irregular double rows, closely placed ; underside and legs black, mesosternal process short and stout. Hab. Peru. (A single specimen.) Larger than D. prasina Erichs., of different coloration, and with the sculpturing of the elytra stronger and geminate, the latter have their greatest elevation at the middle. DORYPHORA BISTRIGUTTATA, Sp. nOV. Greenish black, the thorax closely and strongly punctured, with a fulvous spot at the anterior margin; elytra very closely and strongly punctured at the sides, semipunctate-striate near the suture, greenish, each elytron with a round spot near the scutellum, another near the apex, and a transverse band at the middle fulvous. Length 14 millim. Head finely punctured between the eyes, opaque, greenish |