Liometopum luctuosum Wheeler, 1905 valid
Liometopum apiculatum subsp. luctuosum Wheeler, 1905h: 325 (w.) U.S.A. (Colorado). Nearctic.
Primary type information: Primary type material: syntype workers (number not stated). Primary type locality: U.S.A.: Colorado, Cheyenne Cañon (7000 ft) (W.M. Wheeler). Primary type depositories: MCZC, MHNG. Type notes: Shattuck, 1994: 129, cites 16 worker syntypes.
Obsolete combinations
Citations