Catalogue of the hymenopterous insects in the collection of the British Museum. Part VI. Formicidae. Author Smith, F. text 1858 British Museum London http://antbase.org/ants/publications/8127/8127.pdf book 8127 10 . Crematogaster brunneus . 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.)