Leptothorax acervorum nigrescens

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

Nomenclature

 * nigrescens. Leptothorax acervorum var. nigrescens Ruzsky, 1905b: 614 (w.) RUSSIA. Subspecies of acervorum: Ruzsky, 1936: 94; Pisarski, 1969b: 297. Junior synonym of acervorum: Radchenko, 1995a: 23.