Formica robusta Carpenter, 1930 valid
Formica robusta Carpenter, 1930: 56, pl. 6, fig. 6; pl. 7, fig. 6 (q.m.) U.S.A. (Colorado, Florissant, Eocene).
  • Status as species: Burnham, 1979: 115; Bolton, 1995b: 202; Guénard & Dunn, 2012: 32 (error).
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