OCR Text |
Show 1885.] PHYTOPHAGOUS COLEOPTERA OF JAPAN. 739 the rest gradually increasing in size, fulvous. Thorax narrow, transverse, the posterior margin strongly rounded, the sides straight, slightly thickened in front of the margin, the surface very closely and finely punctured. Elytra rounded, punctured like the thorax, the inner margin of their epipleura? placed far inwards ; each elytron with a small black spot at the shoulder, another near the scutellum, three others, of which the third is sutural and common to both elytron, placed behind the anterior ones near the middle, and a small spot at the apex ; the apices of the femora, tibiae, and tarsi fulvous, the rest of the underside piceous. Prosternum elongate, rather broad ; coxal cavities open. Sapporo. In one of the specimens the elytral spots are very obscure and of a dark fulvous colour, but their position is the same as in the other. Genus PSYLLIODES, Latr. PSYLLIODES SUBRUGOSA, Sp. UOV. Piceous below; antennae and tibiae fulvous; above dark blue; head and thorax closely punctured ; elytra strongly punctate-striate, the interstices finely punctured and slightly rugose. Length 1 line. Head distinctly punctured (when seen under a strong lens). Antennae entirely fulvous, the second and third joints of equal length. Thorax rather convex, about twice as broad as long, the surface closely and more strongly punctured than the head, with an indistinct central raised line. Elytra rather broad and convex, and strongly punctate-striate, the interstices finely punctured, and slightly rugose at the sides. Legs piceous; the knees, tarsi, and the posterior tibiae fulvous. Hakodate. A single specimen. From the other three known Japanese species the present one is separated by its shorter, broader, and more convex shape, especially in regard to the thorax, the punctuation of which is much stronger than in the allied species; further, by the entirely fulvous antenna? in connection with the slightly wrinkled interstices of the elytra, which is principally to be seen at the sides when the insect is held in a certain light. In P. angusticollis, Baly, the elytral punctuation is much finer. PSYLLIODES INTERMEDIA, sp. nov. Piceous ; above dark blue ; antenna? black, the two basal joints testaceous ; thorax extremely finely punctured ; elytra very deeply punctate-striate, the interstices costate at the sides, finely punctured and wrinkled. Length 1 line. Otsu. A single specimen. The head in this species is impunctate; the antenna?, with the exception of the two first joints, entirely black; the thorax is |