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Show 1 9 0 5 .] OF PHYTOPHAGOUS COLEOPTERA. 4 1 7 elevations rather broad and flat, transverse ; clypeus in shape of an acutely raised triangular ridge; antennae rather long and slender, black, the third and fourth joints equal; thorax about twice and a half broader than long, flavous, the lateral margins straight at the base, feebly rounded anteriorly, narrowly thickened, the anterior angles produced forwards and strongly thickened, the sides deeply sulcate, the disc impunctate, obsoletely transversely sulcate near the base; scutellum black ; elytra with the basal portion rather strongly raised, impunctate, flavous, marked with bands of metallic green or purplish in various ways; the breast and legs black, the base of the femora more or less and the abdomen flavous. Hab. Peru. This is evidently a most variable species as regards coloration, but I have little doubt that all the forms represent but one species, as not the slightest structural difference seems to be present. In one form the elytra (if the testaceous colour is taken for that of the ground, which is justified by the similarly coloured epipleurae) have the anterior two-thirds occupied by a metallic band, including a flavous spot near the scutellum and another narrow transverse band near the apex extending upwards along the suture, the lateral and apical margins remaining flavous ; in var. a the metallic colour is interrupted by a narrow transverse band at the middle and another below the latter near the apex; in var. b there is only a single rather broad band near the apex and connected with the flavous lateral margins; the abdomen in all these forms remains flavous ; the metatarsus of the posterior legs is as long as the following two joints together, and the claw-joint is strongly swollen. A. variegata resembles a great deal A. apicalis, but is always larger, and the apical elytral flavous band is not placed so near the apex as in the last-named species, and the antennae are black and the abdomen flavous. A spelera b a s im a c u l a t a , sp. n. Oblong, nearly parallel, testaceous, the intermediate joints of the antennae piceous; eyes rather closely approached ; sides of thorax nearly straight, impunctate; elytra impunctate, each with two elongate short stripes at the base and a small spot (sometimes absent) near the apex. Length 4 millim. Head impunctate, frontal elevations subquadrate, eyes large and rather closely approached ; antennae slender, extending to the middle of the elytra, the lower four and the apical three joints testaceous, the others black or piceous, basal joint thickened and elongate, third and fourth equal, terminal joints shorter; thorax scarcely twice as broad as long, gradually narrowed anteriorly, the lateral margins straight, anterior angles pointed in shape of a small tooth, the sides strongly flattened, the disc impunctate, basal margin somewhat thickened and accompanied |