Atta cingulata Smith

A. ferruginea; pedibus abdomineque pallide ferrugineis; capite maximo, thorace triplo latiore.

Worker major. Length 1 3/4 line. Head very large, ferruginous, the antennae paler; eyes very small, placed at the sides of the head a little before the middle. Thorax: pale ferruginous, very convex or globose anteriorly, much narrower behind, with two short acute spines on the metathorax; legs pale rufo-testaceous. Abdomen: ovate, with the base truncated, with a fuscous ring in the middle; the nodes of the peduncle globose.

Worker minor. About 1 line in length. The head much smaller and more elongate; in colour, resembling the larger worker, and equally smooth and shining; the abdomen with a fuscous ring in the middle.

Hab. Borneo (Sarawak).

Worker major. Length 1 3/4 line.-Ferruginous. Head very large, thrice the width of the thorax; the antennae pale ferruginous; eyes very small, placed a little before the middle, at the sides of the head. Thorax much swollen in front, much narrowed behind, with two short acute spines on the metathorax; legs pale rufo-testaceous. Abdomen ovate, the base truncated; a fuscous ring round the middle; the nodes of the peduncle globose.

Hab. Borneo (Sarawak). (Coll. A. R. Wallace.)