OCR Text |
Show 1881.] PHYTOPHAGOUS COLEOPTERA. 443 Head very distantly, clypeus closely punctured, aureous; mandibular robust and rather long. Antennse of half the length of the body, fulvous, the joints elongate, but slightly thickened. Thorax convex, rather long, about twice as broad as long, the sides very rounded, surface finely and rather closely punctured, metallic green, with a faint cupreous tint near the posterior angles. Scutellum as broad as long. Elytra elongate, convex, slightly narrowed at the apex, the base distinctly swollen; surface much more strongly punctured than the thorax, the punctures arranged in almost regular rows, interstices at the sides slightly transversely wrinkled. Anterior legs very elongate. One specimen, contained in my collection. The elongate anterior legs, very remote and fine punctuation of the head, and the nearly regular rows of punctures of the elytra will make this species recognizable amongst its allies; it is distinguished from C. thoracicum, Lefev., by the rufous tarsi, and the basal elevation of its elytra. 10. COLASPOSOMA MELANCHOLICUM, sp. nov. Oblong-ovate. Dark seneous; antennse black; above closely punctate, rugose, covered with whitish pubescence, each elytron with four or five longitudinal obsolete costse. Length 3 lines. HaB. Transvaal. Head closely rugose-punctate, with a smooth central line. Antennse black, extending to one third the length of the body, third and following joints of nearly equal length. Thorax narrowly transverse, nearly three times as broad as long, convex, and its sides deflexed; surface very closely rugose and punctate, and covered with thin white pubescence. Scutellum not covered with hairs, punctured. Elytra convex, rounded posteriorly, rugose and punctured like the thorax, and pubescent like the latter, each elytron with four or five longitudinal costse from the base to the apex, at which place they closely approach each other. Underside and legs of the same colour, and pubescent like the upper surface. One specimen is contained in my collection. There seem to be several species closely allied to the present one -C. vestitum, Thorns., G. puBescens, Lefev., and C. suBcostatum, Gerst. From the first it is distinguished by the transverse thorax and by the colour of its antennse and legs, from the second by the elytral costse and greater size, while the pubescence separates it from the third species. 11. COLASPOSOMA VARIABILE, sp. nov. Oblong. iEneous below ; above metallic green ; head with two, thorax and elytra with four longitudinal dark purplish bands. Var. Entirely greenish or brownish seneous. Length 4-4| lines. HaB. Zanzibar. ' Head deeply and closely punctured, dark purplish, a central Ion- |