Formica rufa aggerans Wheeler, 1912 junior synonym of current valid taxon Formica obscuripes Forel, 1886
Formica rufa subsp. aggerans Wheeler, 1912c: 90 (w.q.) U.S.A. (Colorado). Nearctic.
Primary type information: Primary type material: syntype workers, syntype queens (numbers not stated). Primary type locality: U.S.A.: Colorado (no further data) (by restriction of Wheeler, 1913i: 431). Primary type depository: MCZC. Type notes: Other original syntype localities: U.S.A.: Nebraska, and Dakota (no further data).
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