Leptothorax canadensis obscurus

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

Nomenclature

 * obscurus. Leptothorax canadensis subsp. obscurus Viereck, 1903: 72 (w.) U.S.A.
 * Junior synonym of yankee: Creighton, 1950a: 277.
 * Junior synonym of canadensis: Schar et al., 2018: 6.