 Over this wide area, it ranges from the semi-arid Chilean Matorral in the north to temperate and evergreen forests in the south.There are no currently recognised subspecies, although the montane and Atacama myotises, which live further north in western South America, and are now considered species in their own right, were formerly considered to be subspecies of "M. chiloensis".Chilean myotises roost in holes in trees, rock crevices, caves, and artificial structures such as attic spaces.