Male. Length 4 1/2 lines.-Black: thinly covered with a loose silky cinereous pile; head and thorax roughly punctured; the mandibles ferruginous, more or less black at their base. Thorax: the metathorax rugose, the tibiae and tarsi ferruginous; the wings hyaline, the nervures testaceous, the stigma fuscous. Abdomen: the node of the peduncle subovate and coarsely rugose; the first segment deeply strangulated, much narrower than the second; the apical margins of the third and following segments obscurely rufo-piceous.
Hab. Australia.
