37. Polyrhachis inermis ^HNS. Pl. IV. figs. 25, 26. B.M.

Worker. Length 2 1/4 lines.-Black: covered with a shining grey pile; the thorax armed at the angles of the anterior margin with short acute spines; the scale of the abdomen with its superior margin much wider than the basal one, and rounded, not spined. The thorax flattened above, its lateral margins acute, divided by two distinctly marked sutures; the head longitudinally striated, the abdomen subglobose.

Hab. Celebes.