OCR Text |
Show 1889.] COLLECTED I N V E N E Z U E L A . 285 also been examined by Mr. Baly) are of pale flavous colour and differ in several particulars from Erichson's description: in one specimen the labrum is piceous ; the antennae in both are darker than the colour of the head, their second and third joints are small and equal; the thorax is bifoveolate ; the elytra may be described as very finely rugose with more or less distinct longitudinal costae, especially strongly marked at the sides ; the base, a transverse spot at the middle, and another below the latter are pale fulvous, scarcely visible in one of the specimens ; the underside and legs are pale flavous, with the outer margin of the tibiae and the tarsi darker. It is possible that these Venezuelan specimens are distinct from, although closely allied to, Erichson's species, or that they are but local varieties. DIABROTICA CLYPEATA, Baly. Colonia Tovar. Two specimens. DIABROTICA SEPARATA, Baly. A single specimen from Caracas. NEOBROTICA INCONSTANS, n. sp. Obscure fulvous ; the head, basal joints of the antennae, breast, and the tibia and tarsi, black ; thorax with a deep transverse groove ; elytra finely punctured, each with an elongate subangular black mark at the shoulder and an obscure piceous spot below the middle. Var. Elytra immaculate. Length 3 lines. Head broader than long, impunctate, black (the extreme vertex sometimes testaceous), with a distinct fovea between the eyes ; the frontal elevations not defined ; antennae more than half the length of the body, black, the three apical joints (the apex of the terminal joint excepted) pale flavous, the first joint very long and slender, the second very short, the following elongate and nearly equal; thorax twice as broad as long, the sides rounded and widened before the middle; the disk deeply transversely grooved,impunctate,with the exception of some very fine punctures near the anterior angles ; scutellum impunctate ; elytra finely and closely punctured, the interstices in the male slightly rugose, pale fulvous, the shoulders with a short, narrow, elongate and angulate black mark, the lower angle of which turns inwards, and a round piceous obscure spot below the middle; breast and the tibiae and tarsi black ; claws appendiculate. Colonia Tovar. N. inconstans rather closely resembles N. pallescens, Jac, from Honduras, but differs in the want of the longitudinal sulcations of the elytra and in the presence of the elytral black markings. The species is probably subject to a good deal of variation, and in the variety the left elytron is pale green and the right one fulvous, neither of them having any markings. NEOBROTICA DIMIDIATICORNIS, n. sp. Pale testaceous, the vertex and the intermediate joints of the |