Wingspan: 10–11 in.
Length: 3–4 in.
Weight: 0.18–0.49 oz
Color: Brown to black; ears and wings are black.
Other: Has a characteristic blunt tragus (part of the ear).
Roosting behavior: Females form maternity colonies and will share space with other bat species. Will roost in trees as well as buildings. Will occupy bat houses.
Human encounters: Found close to water. It often can be seen near streetlights.