Catalogue of the hymenopterous insects collected at Sarawak, Borneo; Mount Ophir, Malacca; and at Singapore, by A. R. Wallace. Author Smith, F. text Journal of the Proceedings of the Linnean Society of London, Zoology 1857 2 42 88 http://antbase.org/ants/publications/2588/2588.pdf journal article 2588 D09C3FFA-7EB5-4A2D-A55E-A3229619A2A2 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.