The Spotted Bat (Euderma maculatum)

http://www.animalspot.net/spotted-bat.html

The spotted bat is common throughout the western United States, central Mexico, and southern British Columbia. This bat is rather elusive, and can be downright impossible to locate in the wild. They roost in the narrow crevices of cliff faces or canyon walls, within remote arid regions. Often very shy, spotted bats do no typically come into contact with humans.

Euderma maculatum is also an insectivorous bat. While they prefer to primarily feed on moths, these bats eat a variety of insects