Colilodion colongi sp. nov. of the clavigerite ant-loving beetle from Mindanao, the Philippines is described, illustrated, and distinguished from related species. The distribution map for all known species is given.
Keywords: Coleoptera, Staphylinidae, Pselaphinae, Clavigeritae, Colilodionini, Colilodion, new species, Mindanao, the Philippines.