Formica foreli valid Switzerland. Palearctic.
Bondroit, J. 1918. Les fourmis de France et de Belgique. Annales de la Société Entomologique de France 87:1-174.   122872

Formica foreliana valid U.S.A. (Arizona). Nearctic.
Wheeler, W. M. 1913i. A revision of the ants of the genus Formica (Linné) Mayr. Bulletin of the Museum of Comparative Zoology 53:379-565.   130081