84. Formica fervens ^HNS.

Worker. Length 4 lines.-Head and abdomen black, obscurely rufo-piceous; thorax and legs pale ferruginous. The head subopake, with the clypeus and mandibles shining; the flagellum pale ferruginous; the anterior margin of the clypeus slightly emarginate. Thorax usually more or less fuscous in front, compressed behind. Abdomen shining, the apical margins of the segments narrowly testaceous; the scale of the peduncle ovate and ferruginous.

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