Formica rufa subcaviceps Creighton, 1940 junior synonym of current valid taxon Formica integroides Wheeler, 1913
Formica rufa subsp. subcaviceps Creighton, 1940a: 1, 7 (in key), fig. 1 (w.m.) U.S.A. (Oregon), CANADA (British Columbia). Nearctic.
Primary type information: Primary type material: 27 syntype workers, 1 syntype male. Primary type localities: 3 workers, 1 male U.S.A.: Oregon, Medford (C.M. Keyes), 24 workers Canada: British Columbia, Penticton, Dog Lake (C.G. Hewitt). Primary type depository: MCZC.
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