1. Crematogaster anthracinus ^HNS.

C. aterrimus, laevis et nitidus; tarsis rufo-piceis.

Worker. Length 1 1/4 line. Jet-black, smooth and shining; the face with a few delicate striae; the extreme base of the scape, and the apex of the flagellum, pale testaceous. Thorax: flattened above, opake and finely rugose; the metathorax armed on each side with an acute spine; the tarsi pale testaceous, with the claw-joint darker. Abdomen: heart-shaped, smooth, shining and impunctate.

Hab. Singapore.