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Female. Length 4 lines.-Black and shining: the antennae, mandibles, and face anteriorly ferruginous and punctate-striate, the vertex coarsely punctured; the face with a central channel which terminates at the anterior ocellus. Thorax oblong, rounded anteriorly and truncate posteriorly, the truncation transversely rugose; above coarsely punctured, the sides obliquely striated; the legs and sides more or less ferruginous; wings subhyaline, the nervures fuscous. Abdomen oblong, with scattered punctures; the apex acute and rufo-testaceous.
Worker. Closely resembles the female, but is less coarsely punctured on the vertex, and the truncation of the metathorax is not rugose.