The Arizona myotis has light to dark brown fur with darker wing membranes and ears. This species lives in desert, woodland, and cave habitats and is most commonly found residing in pine forests. Arizona myotis have been observed roosting in pine trees, bridges, and attics. Their range includes southwestern US and central Mexico. They commonly hibernate in caves and buildings. Documented food items include beetles, wasps, and mosquitoes. Female Arizona myotis typically have 1 pup per year. Banded wild individuals as old as 31 years have been recorded.