PIAkey: Identification Guide to Ants of the Pacific Islands USDA. APHIS. PPQ. Center for Plant Health Science and Technology; University of California - Davis.
PIAkey (Pacific Invasive Ant key) is an electronic guide designed to assist users identify invasive ant species commonly encountered in the Pacific Island region. The guide covers four subfamilies, 20 genera and 44 species. New version released -- Edition 2.0, Lucid v. 3.4. (Dec 4, 2008).
