81 . Formica mistura ^HNS.

Female. Length 6 1/2 lines.-Black: the hinder margin of the vertex, the coxae, femora and tips of the tarsi, the scale of the peduncle and the base of the abdomen more or less obscurely ferruginous. Head: the mandibles, clypeus and anterior angles of the face punctured; the clypeus slightly emarginate anteriorly; the flagellum fusco-ferruginous. Thorax oblong-ovate; wings subhyaline, the nervures rufo-testaceous. Abdomen ovate; the scale of the peduncle subovate with a slight notch above. Head, thorax, legs and abdomen with a thin fulvous pubescence.

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