74. Formica diligens ^HNS,

Female. Length 9 lines.-Dark rufo-piceous; the antennae, mandibles, thorax at the sides and beneath, the metathorax and legs ferruginous. In form closely resembling Formica ligniperda ^HNS; the head shining; the antennae, the anterior margin of the face and clypeus, and the mandibles ferruginous. The wings subhyaline, the nervures and tegulae pale ferruginous. Abdomen shining, pale ferruginous beneath; the scale of the peduncle subquadrate, slightly emarginate its entire width above.

Hab. Malacca. (Coll. W. W. Saunders, Esq.)