Liometopum apiculatum valid Mexico. Neotropic.
Mayr, G. 1870b. Neue Formiciden. Verhandlungen der Kaiserlich-Königlichen Zoologisch-Botanischen Gesellschaft in Wien 20:939-996.   127229

Liometopum apiculatum luctuosum obsolete combination U.S.A. (Colorado). Nearctic.
Wheeler, W. M. 1905h. The North American ants of the genus Liometopum. Bulletin of the American Museum of Natural History 21:321-333.   130001