<ref name="Francoeur_1975">{{cite journal |first1=A. |last1=Francoeur |year=1975 |title=Notes for a revision of the ant genus ''Formica.'' 1. New identifications and synonymies for some nearctic specimens from Emery, Forel and Mayr collections |url=https://antcat.org/documents/4995/11008.pdf |journal=Entomological News |publisher= |volume=85 |issue= |pages=257–264 |doi= }}</ref>