A new species of Ensliniella is described from deutonymphs from two localities in central Japan as the seventh species of the genus. Ensliniella asiatica sp. nov., found in the nests and acarinaria (mite chambers) of the vespid wasp Allodynerus mandschuricus, differs from the most similar species, E. kostylevi, in having a more reduced, shorter, subconical solenidion ϕ on tibia IV and ensiform setae e and r on tarsus III. It is readily distinguished from the remaining five known congeners in having a solenidion ω2 on tarsus I. This is the second species of Ensliniella known from Japan.