39 . Myrmica rugifrons ^HNS.

Female. Length 3 lines.-Pale reddish-yellow; the first segment of the abdomen, except its extreme base, fuscous. Head elongate-quadrate, the anterior and posterior angles rounded; the eyes, ocelli, and inner margin of the mandibles, black, the latter denticulate; the head rugose, with a number of longitudinal fine carinae, the hinder margin of the vertex emarginate. Thorax elongate-ovate, longitudinally rugose above, the prothorax transversely so, the metathorax concavely truncate at the apex, a short spine on each side at the verge bf the truncation; the legs rather paler than the body; wings hyaline and iridescent, the nervures pale testaceous. Abdomen ovate, smooth and shining; the first node petiolated at the base, the second globose.

Hab. India (Penang). (Coll. East India House.)