OCR Text |
Show 1880.] PHYTOPHAGOUS COLEOPTERA. 171 of the same colour and of triangular shape is placed between the fifth and ninth stria, nearly extending to the middle of the disk ; another patch, of a little smaller size and connected by a point with the lateral margin, is situated directly behind the middle. Underside and legs black. One specimen in m y collection. Genus PLAGIODERA, Redt. 11. PLAGIODERA QUADRIMACULATA, sp. nov. Oblong-ovate. Black; thorax distinctly punctate at the sides, finely on the disk ; elytra strongly and closely punctate, each elytron with a narrow oblique short transverse band before the middle and a large irregularly shaped spot near the apex sanguineous. Length 4\ lines. Hab. R. Susio, Costa Rica. Head with a distinct longitudinal middle line, finely punctate at the sides, more strongly towards the middle ; clypeus separated by a triangular groove; antennae a little longer than the base of the thorax, black, the first four joints slender, the rest transverse and gradually widened. Thorax very narrow, about 3\ times broader than long; anterior margin strongly concave, posterior one but slightly produced at the base; sides narrowed from base to apex ; anterior and posterior angles obtuse ; surface much more distinctly punctured at the sides than at the disk. Scutellnm impunctate. Elytra subparallel, rather deeply foveolate below each humeral callus, the fovea joined by a short indistinct groove running upwards to the base, the latter also transversely depressed ; disk closely and strongly punctured except near the base, where the punctation is greatly diminished ; an oblique sinuate transverse band of light red colour is placed below the base and extends nearly to the suture, while another rather more lighter-coloured spot of triangular shape occupies the space below the middle, but without touching the suture or the extremity of the elytra. Underside and legs black ; last abdominal segments margined with testaceous. Collected by Mr. Rogers. Messrs. Godman and Salvin's collection. Genus AUSTRALICA, Chevrol. 12. A U S T R A L I C A VIOLACEA, sp. nov. (Plate XVIII. fig. 2.) Oblong, convex. Greenish aeneous below ; antennae and tarsi fulvous; above shining violaceous blue; elytra deeply punctate-striate. Length 3 lines. Hab. New Guinea. Head very deeply and closely punctate in front, more sparingly and finer at the vertex, with a fine longitudinal groove in the middle ; labrum and palpi fulvous; antennae incrassated near the apex, fulvous. Thorax nearly three times as broad as long; the lateral margins |