Length of the male 28 mm., of the female 32 mm.; breadth at the shoulders in the male 8,5 mm., in the female 10 mm. The head (labrum and mandibles excepted), the prothorax and a streak on the apical half of the elytra along the suture metallic green, the remaining portion of the apical half of the elytra, the scutellum and the under surface of the body cyaneous, the latter tinged with faint shades of green and purple; the mandibles, the upper surface of the scape and of the extreme base of the 3rd joint, and the 2nd, 9th, 10th and 11th joints of the antennae as well as the legs (except the basal three-fourths of the tibiae) black; the labrum, the anterior margin of the clypeus, the under surface of the scape of the antennae and the basal three-fourths of the tibiae brown, the 3rd-8th joints of the antennae and the basal half of the elytra luteous.