Length of the male 44 mm., of the female 54 mm.; breadth at the shoulders in the male 15,5 mm., in the female 19 mm. Smooth and shining; black, with the elytra of a beautiful metallic green; the body covered with extremely small scales of a whitish green, forming transverse bands on the elytra and abdominal segments, irregular on the former, widely interrupted on the latter; the antennae annulated and the legs banded with whitish blue.