OCR Text |
Show 604 MR» M. JACOBY O N PHYTOPHAGOUS COLEOPTERA. [Nov. 16, base. Elytra rugose and irregularly wrinkled, green, the lateral margin narrowly and the apex broadly testaceous. Legs very long and slender, first joint of the posterior tarsi longer than the following joints together; entire underside and legs pale testaceous. 3. Elytra near the apex with a short curved ridge. Nearly allied to D. eximia, Baly, but distinguished by the colour of the underside and of the antennse. Mus. Jacoby. 78. DIABROTICA FLAVONOTATA, sp. nov. Ovate, convex. Flavous ; head and breast black ; antennse piceous, the tenth joint testaceous; thorax fulvous; elytra finely semipunc-tate- striate, violaceous blue, shining, each elytron with five spots (2, 2, 1) and the margin flavous. Length 4 lines. Head longer than broad, impunctate, black, with a large shallow fovea between the eyes; lower part of face partly punctate, with some yellow hairs. Antennse as long as half the body, the second joint about one half the size of the first, the third joint more than twice the length of the second ; the three basal joints piceous, testaceous below, the tenth joint entirely of that colour, the rest black. Thorax transverse, the sides nearly straight; surface very obsoletely transversely grooved, very finely punctate ; scutellum fulvous. Elytra widened behind, distinctly margined, finely punctured, the punctures arranged in rather regular rows near the suture, violaceous blue; a narrow spot below the shoulder, a larger one near the scutellum, two round spots placed transversely at the middle, and a narrow transverse spot near the apex flavous. Underside and legs testaceous; breast and a streak on the upper part of the femora and on the anterior tibiae black ; the four posterior tibiae and the tarsi entirely black, clothed, like the breast, with thick yellow pubescence. Allied to D. regalis, Baly, and D. angulicollis, Erichs. Mus. Jacoby. 79. DIABROTICA NIGROPLAGIATA, sp. nov. Oblong-ovate, widened behind. Black ; head, antennse, thorax, and the femora fulvous ; elytra finely punctured; the anterior half fulvous, with four black spots, posterior half black. Length 41 lines. Head longer than broad, wedge-shaped, with a deep longitudinal central groove ; the frontal tubercles very obsolete, entirely impunctate. Antennae half the length of the body, the third joint one half longer than the second, fourth and following joints longer than the third ; fulvous, the apical joints slightly darker. Thorax subquadrate, narrowed at the base, the sides at the same place flattend, surface rather convex, obsoletely transversely depressed near the base ; disk shining, impunctate. Elytra distinctly widened posteriorly and convex, very finely punctured, a little more strongly towards the basal half, with some very obsolete longitudinal costse towards the apex; the anterior fulvous portion does not quite extend |