10 . Crematogaster brunneus ^HNS.

Worker. Length 2 lines. - Reddish-brown, smooth and shining: head wider than the thorax, the vertex slightly emarginate. Thorax: the disk concave and finely striated longitudinally; the metathorax deeply concave, and furnished on each side with a stout acute spine; the legs with the tips of the joints and the tarsi pale testaceous. Abdomen heart-shaped, smooth and shining; the first node of the peduncle heart-shaped, flattened above, the second globose and bituberculate above.

Worker minor.-One-third smaller, and of a paler colour.

Hab. Borneo (Sarawak). (Coll. W. W. Saunders, Esq.)