The Arizona Myotis has brown-toned fur and changes roosts with the seasons, using trees and buildings in summer and caves or abandoned buildings in winter. Its range is in the western United States and Mexico.
Its fur ranges from tawny and light brown to dark or golden brown.
In summer it roosts in trees and buildings; reported maternity roosts include ponderosa pines and bridge timbers. In winter it hibernates in caves or abandoned buildings.
An extinction-risk assessment has not been added yet.