The Argentine biodiversity profile treats this bat as Neoeptesicus diminutus. Its back is golden chestnut, its underside gray-yellow to ochre, and the profile lists forests, pampas, and humid savannas as habitats.
The dorsal fur is golden chestnut, the underside gray-yellow to ochre, and the wing membrane brown. The profile also notes regional variation in pelage.
The Argentine species profile lists forests, pampas, and humid savannas as habitat and says the bat feeds on insects, especially beetles.
An extinction-risk assessment has not been added yet.