This small mouse is recorded on the western slopes of the southern Peruvian Andes. Its 2014 description reports records from grassland, dry herb scrub, valley farmland, and Polylepis woodland.
The back ranges from pale gray to brownish gray and may include orange hairs. The underside is white, and the tail is bicolored.
The description records the species in grassland, dry herb scrub, farmland in Andean valleys, and Polylepis woodland in its known Arequipa localities.
An extinction-risk assessment has not been added yet.