The Valparaíso myotis is a small bat from central Chile. Adult specimens in the species review had forearms 34.5–37.8 mm long, and its back and belly fur is bicolored.
Adult specimens had forearms 34.5–37.8 mm long and back hairs 6.5–7.5 mm long. The woolly back fur has dark brown roots and brown to cinnamon tips. The belly hairs also have dark brown roots, with pale yellowish tips.
Four colonies surveyed in central Chile in March 2017 used human-made structures as roosts. These colonies in the Metropolitan and O’Higgins regions each contained 40–100 bats.
An extinction-risk assessment has not been added yet.