 Prior to analysis that led to the description of new species, the population was assigned to a poorly studied "pumilis" group of Australian bat taxa.Taxonomic instability also saw the species placed within a subgenus "Pipistrellus" ("Vespadelus"), while others were elevating that taxon as genus "Vespadelus".The taxonomic status of the population west of Adelaide, South Australia, is suspected to be a separate species.