The velvety myotis is a small bat, although of average size for a myotine, with a total length of 8 to 9 cm (3.1 to 3.5 in) and weighing between 5 and 11 g (0.18 and 0.39 oz).

It has short, velvety, orange-brown fur over the whole of the body, which may fade to a brownish shade in preserved specimens.

[3] It is found in northern and western Brazil, southern Colombia, eastern Ecuador and Peru, and in Bolivia, Paraguay, and northwestern Argentina.

[5] The velvety myotis feeds on insects, including beetles, bugs, moths, and flies, which it typically captures over water.

They spend the day roosting in hollow trees, in burrows made by other animals, or beneath the thatched roofs of local buildings.