OCR Text |
Show 58 ON NEW SOUTH-AMERICAN COLEOPTERA. [May 12, joints fulvous ; thorax with the sides straight, obliquely narrowed anteriorly, greenish, the sides strongly and closely, the disc minutely punctured; scutellum ovate, black; elytra with deep and regular striae which are closely and finely punctured, those near the suture impunctate, the basal margin and three longitudinal bands, as well as a short subsutural stripe, fulvous, the two inner stripes joined at the apex and connected at the same place with the lateral stripe, which has a row of black punctures. Hab. Salta, Argentine Republic. Readily distinguishable from any other species by the anteriorly narrowed thorax, the convex elytral interstices, and the punctured stria? (not punctured rows), also by the additional short subsutural flavous stripe at the first interstice near the base. ZYGOGRAMMA OERULEO-VITTATA, sp. nov. Dark fulvous, the breast and abdomen greenish piceous, apical joints of the antenna? black; thorax strongly punctured at the sides only; elytra with three dark blue and three flavous longitudinal bands each, the dark bands closely punctured, the flavous ones joined at the apex. Length 7 millim. Head finely and sparingly punctured, dark fulvous, labrum flavous, mandibles robust, strongly punctured and pubescent; antenna? black, the basal six joints fulvous, terminal joints strongly dilated, the last one oblong-ovate; thorax more than twice as broad as long, the sides straight, closely and strongly punctured, the disc very finely punctate; scutellum fulvous; elytra with two regular rows of punctures near the suture, the latter and two longitudinal stripes dark blue, the discoidal stripe abbreviated posteriorly, the alternate interstices flavous, impunctate, joined at the apex, the basal margin also flavous, the marginal flavous band with a single row of punctures, the elytral epipleura? aeneous, except near the apex; legs fulvous, claws united at the base. Hab. Paraguay. The colour of the antennae and the blue elytral bands principally distinguish this species, which has its most nearly allied form probably in Z. 5-virgata Stal, from which it differs in the details given above. . LEPTINOTARSA PARAGUAYENSIS, sp. nov. Metallic green, the labrum and antenna? fulvous; head and thorax impunctate, subopaque; elytra regularly punctate-striate, the interstices slightly convex and finely aciculate. Length 9 millim. Head entirely impunctate, of silky appearance, the labrum fulvous; the antennae with the terminal five joints widened, entirely fulvous; thorax with strongly rounded sides, rather convex, _ the angles not produced, the surface sculptured like the head, without a trace of punctation; scutellum shining; elytra |