Catalogue of the hymenopterous insects in the collection of the British Museum. Part VI. Formicidae. Author Smith, F. text 1858 British Museum London http://antbase.org/ants/publications/8127/8127.pdf book 8127 C86CFDBF-61D9-48EE-9C2E-325FC0462B10 5. Pachycondyla tridentata . B.M. Worker. Length 6 lines.-Black: punctured and grooved like P. rufipes , of which it may be a variety; the only difference being, that, with the exception of its mandibles and the apex of the abdomen, it is black; the posterior margin of the node of the peduncle is furnished with three sharp spines, not serrated. Hab . Borneo (Sarawak).