Augochlora Coloradensis, n. sp. (subg. Augochlora).

♀.—Green, often tinged with pulple; face finely and confluently punctured above the base of the antennæ, more coarsely, confluently so below, supraclypeal space sometimes not confluently punctured; clypeus with large punctures, black at tip; basal process of labrum subquadrate, broadly rounded, rufopiceous; mandibles black, rufous at tips; antennæ black, flagellum near the tip fulvotestaceous beneath; striation of the disc of the metathorax reaching to the summit, posterior truncation rounded above, lateral portions rounded, truncation not shining, rugosely punctured; tegulæ, often with a black dot in the centre, stigma and nervures testaceous; legs piceous, femora and tibiæ sometimes with a greenish cast, knees testaceous, tips of tarsi generally inclined to rufous; hind tibial spurs of posterior leg finely serrated; abdomen shining, polished, finely punctured; ventral segments black; pubescence of face, sides of thorax, tarsi partly, and abdomen, whitish; scutellum and first dorsal abdominal segments very fine and short, margins of segments fringed with white hairs; hair on tarsi often inclined to be rufous. Lenglh, 6–7 mm.