Taxonomic history
[Formica cinerea cinerea lepida Wheeler, 1913i PDF: 526; unavailable name.].Wheeler, 1917a PDF: 551 (q.).Subspecies of Formica cinerea: Wheeler, 1917a PDF: 551; Creighton, 1950a PDF: 531.Raised to species: Francoeur, 1973 PDF: 122.E1 [endemic to California], E2 [endemic to California floristic province (Hickman, 1993)]