Crematogaster obscurus

Smith, F., 1858, Catalogue of the hymenopterous insects in the collection of the British Museum. Part VI. Formicidae., London: British Museum : 137

8. Crematogaster obscurus .

Worker. Length 1 1/4 line.-Dull testaceous, smooth and shining: the base of the scape and of the flagellum, as well as the clypeus and mandibles, pale testaceous; the head smooth and shining. Thorax rounded in front, and having a central longitudinal channel, deeply strangulated in the middle; the metathorax subquadrate, with short spines at the posterior angles; the tips of the joints of the legs and the tarsi pale testaceous. Abdomen heart-shaped.

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