Aculops ailanthii, the Ailanthus leafcurl mite, is a species of Eriophyid mite that infects trees-of-heaven (Ailanthus altissima). Very little is known about this species. A. ailanthii has been proposed as a potential biocontrol alongside Ailanthus webworms and Mimosa wilt (Fusarium oxysporum) in North America, where Ailanthus is a severe invasive.