This bat is recorded in montane forest in central Honshu and Kanto. Gifu Prefecture reports tree hollows and one maternity-roost record in wall gaps and an attic at Norikura.
The back is blackish brown, with pale tips on the guard hairs.
It eats insects active at night. Tree hollows are known roosts; a maternity group was recorded in wall gaps and an attic at Norikura.
An extinction-risk assessment has not been added yet.