Formica badia

Smith, F., 1857, Catalogue of the hymenopterous insects collected at Sarawak, Borneo; Mount Ophir, Malacca; and at Singapore, by A. R. Wallace., Journal of the Proceedings of the Linnean Society of London, Zoology 2, pp. 42-88 : 54

9. Formica badia .

F. castaneo-fusca; thorace postice attenuata, abdominis squamula incrassata, abdomine ovato.

Worker. Length 2 1/2 - 3 1/2 lines. Chestnut-brown; head subovate; the eyes ovate, lateral, placed high on the head towards the vertex. Thorax rounded in front, compressed behind; the metathorax obliquely truncated; the scale of the abdomen subcorneal, incrassate, slightly rounded in front and truncate behind. Abdomen oblong-ovate, the apex fuscous.

Hab. Singapore; Borneo (Sarawak).

This species has much the appearance of a species of Polyergus ; but the mandibles are toothed at the apex: the palpi I have not examined.