The chestnut long-tongued bat is a small bat with chestnut to dark brown fur on its back. It roosts in caves and feeds mainly on nectar.
The dorsal fur is chestnut-brown to dark brown, while the underside is slightly paler. The ears are short and rounded, and the wing membrane is dark brown.
It feeds mainly on nectar, with pollen and insects also in its diet. It roosts in caves, rock crevices, and culverts, and is reported among the first bats to leave cave roosts at twilight.
An extinction-risk assessment has not been added yet.