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 Gen. Cerapachys . Body elongate; head narrowed before and behind the eyes; eyes ovate, lateral, placed about the middle of the head; antenna short, incrassate; mandibles triangular, obsoletely toothed within. Thorax oblong-quadrate, strangulated in the middle. Abdomen: oblong, with a deep strangulation between the first and second segments.