Formica fusca marcida

This taxon is not in use as it is currently considered to be a junior synonym of Formica subaenescens.

Nomenclature

 * marcida. Formica fusca var. marcida Wheeler, W.M., 1913f: 398 (in key) (w.q.) CANADA.
 * [Formica fusca subsp. fusca var. marcida Wheeler, W.M., 1913f: 503; unavailable name.]
 * Subspecies of fusca: Wheeler, W.M., 1917a: 546.
 * Raised to species: Creighton, 1950a: 534.
 * Junior synonym of fusca: Francoeur, 1973: 189.
 * Junior synonym of subaenescens: Schar et al., 2018: 6.