OCR Text |
Show 1 9 0 5 .] OF PHYTOPHAGOUS COLEOPTERA. 4 0 5 broader form, the suture connects all these lower bands by a narrow metallic green stripe ; metatarsus elongate, claw-joint strongly swollen. Hab. Peru. Different in the number and shape of its elytral bands from any other species ; two exactly similar specimens are contained in my collection. A sph .e r a v e r n a l is , sp. n. Piceous, the lower part of the face and the thorax flavous, sides of the latter broadly flattened, disc impunctate; elytra flavous or pale fulvous, with two transverse violaceous bands, one at the base, the other below the middle, not extending to the sides or apex. Length 6-6| millim. Head with a few punctures near the eyes ; the vertex nearly black, the frontal tubercles and the clypeus flavous; antennae piceous or black, the lower three joints obscure fulvous ; thorax slightly narrowed anteriorly, the sides with a rather broad flattened margin, the anterior angles dentiform, the disc impunctate, yellowish-white ; scutellum black ; elytra impunctate, flavous, the basal transverse blue or violaceous band nearly extending to the middle, the lower band of equal width, not extending to the apex, both bands are limited laterally by the broadly reflexed lateral margins, the flavous band which separates the darker ones at the middle is of about half the width (in a longitudinal sense) than the blue bands ; breast and legs piceous, the base of the femora rather lighter; abdomen flavous; claw-joint scarcely thickened. Hab. Br. Guiana. This is another species with transverse blue bands of which so many are known, yet there is none which agrees entirely with the present one. A. cemula Illig. is described as over 4 1 lines in length, the thorax as having the sides obsoletely flattened, while in this species it is very distinctly marked ; the colour of the head is given as testaceous and the median pale band as broad, while in A . vernalis this band is of only half the width of that of the dark bands These remarks also apply to A . ornata Illig. A . curialis Erichs, has the posterior band much narrower and the pale division broader; in A. limitata Har. the posterior blue band is still narrower, and there are other differences besides. A sph^e r a se p a r a t a , sp. n. Black; thorax fulvous, impunctate; elytra pale testaceous, impunctate, a broad transverse band at the base, not extending to the lateral margins, and another band at the apex, dark violaceous. Length 6 millim. Head black, shining, impunctate; eyes large, elongate, frontal elevations very broad but feebly raised, clypeus with an acute central ridge ; antennae black, the third and fourth joints equal, |