Eptesicus isabellinus is recorded from southern Iberia into northwestern Africa. Its account lists environments from Mediterranean woodland to semidesert.
The back is light brown, sometimes yellowish; the underside is paler, while the face and ears are dark brown.
The account lists rock and cave crevices, hollow trees, buildings, and ruins as roosts. It feeds on flying insects and hunts in farmland, woodland, scrub, and semidesert near water.
An extinction-risk assessment has not been added yet.