Female. Length 8 1/2 lines. - Dark chestnut-brown, smooth, shining, and sparingly and delicately punctured. Head small and more strongly punctured than the thorax; a deeply impressed line in front of the anterior ocellus, extending to the base of the clypeus, which is smooth, shining and convex, with its anterior margin rounded; the mandibles punctate-striate, with four or five black acute teeth; the antennae and apical joints of the tarsi pale rufo-testaceous; the mesothorax with two central approxi- mating lines anteriorly, which terminate a little before the middle.of the disk, also a faintly impressed line opposite each tegula; wings smoky, nervures dark ferruginous. Abdomen large and ovate, the nodes of the petiole transverse, the anterior lateral angles of the second node acute.
Hab. Hong Kong.
This species very closely resembles C. lignata , but may be distinguished by its having the second node of the petiole widest anteriorly: the reverse is the characteristic of the typical insect.
