3. Crematogaster insularis ^HNS.

C, niger, laevis et nitidus; antennis tarsisque pallide testaceis; thorace spinis duabus acutis armato.

Worker. Length 1 1 / 4 line. Black, smooth and shining; the vertex, thorax and nodes of the peduncle with an obscure ferruginous tinge; the antenote, tarsi, and articulations of the legs pale rufo-testaceous; the spines which arm the metathorax stout, elongate, and acute, with their apex pale testaceous. Abdomen heart-shaped and very acute at the apex.

Hab. Aru.