Leptothorax emersoni Wheeler, 1901 an obsolete combination of Formicoxenus emersoni (Wheeler, 1901)
Leptothorax emersoni Wheeler, 1901a: 433, figs. 2, 3 (w.q.m.) U.S.A. (Connecticut). Nearctic.
Primary type information: Type-material: 14 syntype workers, 1 syntype queen, 4 syntype males. Type-locality: U.S.A.: Connecticut, Litchfield Hills, nr Colebrook, viii.1900 (W.M. Wheeler). Type-depositories: MCZC, USNM.
Citations

Extant: 0 valid subspecies (2 obsolete combinations)