Formica fusca var. neorufibarbis Emery, 1893k: 660 (w.) U.S.A. (South Dakota). Nearctic.

Primary type information: Primary type material: lectotype worker (by designation of Francoeur, 1973: 215). Primary type locality: lectotype U.S.A.: South Dakota, Hill City, 8.vii.1890, no.185 (T. Pergande) (invalid restriction of type locality by Wheeler, 1913i: 508; no lectotype designated). Primary type depository: MSNG. Secondary type information: Secondary type material: paralectotype workers (number not stated). Secondary type locality: same as for lectotype. Secondary type depositories: AFPC, MCZC, MHNG, MSNG, USNM. Type notes: 1) Francoeur, 1975: 263, cites 6 worker syntypes in MHNG). 2) Other original syntype locality: U.S.A.: Colorado (no collector’s name).