Formica propinqua Creighton, 1940 valid
Formica rufa subsp. propinqua Creighton, 1940a: 1, 7 (in key), fig. 1 (w.) U.S.A. (California). Nearctic.
  • [First available use of Formica truncicola integroides propinqua Wheeler, 1917; unavailable (infrasubspecific) name.].
  • Cole, 1956f: 257 (q.m.).
  • As unavailable (infrasubspecific) name: Emery, 1925d: 254.
  • Subspecies of Formica rufa: Smith, 1951c: 870.
  • Subspecies of Formica integroides: Creighton, 1950a: 490; Cole, 1956g: 257; Smith, 1958c: 156; Smith, 1967a: 371; Smith, 1979: 1459; Allred, 1982: 467 (in key).
  • Status as species: Wheeler & Wheeler, 1978b: 394; Wheeler & Wheeler, 1986g: 85; MacKay et al., 1988: 112 (in key); Bolton, 1995b: 202; Mackay & Mackay, 2002: 369; Ward, 2005: 64.
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