Formica rufa subsp. planipilis Creighton, 1940a: 7 (in key), 9, fig. 1 (w.) U.S.A. (Nevada). Nearctic.

Primary type information: Primary type material: holotype worker. Primary type locality: U.S.A.: Nevada, Mt Wheeler, Lehman Cave, viii.1934 (W.S. Creighton). Primary type depository: AMNH. Secondary type information: Secondary type material: paratype workers (number not stated, “many nests”). Secondary type locality: same as for holotype. Secondary type depositories: AMNH, LACM.