Leptothorax calderoni

Nomenclature

 *  calderoni. Leptothorax (Mychothorax) canadensis ssp. calderoni Creighton, 1950a: 276 U.S.A. (as junior synonym of septentrionalis). [First available use of Leptothorax (Mychothorax) acervorum r. canadensis var. calderoni Forel, 1914c: 617; unavailable name.] Revived from synonymy and raised to species: Ward, 2005: 13.