Worker. Length 6-6i lines. - Dark chestnut-brown, shining; in some cases the abdomen is nearly black. Head very large, larger and wider than the abdomen; eyes small and ovate, placed before the middle at the sides; in a line with the eyes, in the middle of the face, is a single ocellus; a deeply impressed line extends from the vertex to the anterior margin of the face; the head longitudinally striated in front, the striation somewhat curved at the sides of the insertion of the antenna, the striae ex- tending upwards, as high as the upper margin of the eyes in the middle of the front, and the entire length of the head at the sides and beneath; the vertex transversely striated, the striae curving at the sides, and uniting with that which runs down the sides of the head, the head deeply emarginate behind; mandibles very stout, their inner edge smooth, not toothed; the pro- and meta- thorax transversely striated, the mesothorax and scutellum shining, with a few scattered punctures; the metathorax armed with two stout acute spines. Abdomen ovate, smooth and shining; the apical margins of the segments rufo-piceous, the nodes of the pe- tiole incrassate, the first striated and notched above, the second node with the upper margin smooth and shining.
Hab. Birmah; Hong Kong; Philippine Islands.