Photo Credit: Dane Smith

Southeastern myotis

Myotis austroriparius

Order: Chiroptera

Suborder: Yangochiroptera

Family: Vespertilionidae

Call characteristics:

High frequency caller (~40 kHz range)


3 - 3 4/5 in

(7.7 – 9.7 cm)


  1/5 - 1/3 oz

(5.1 - 8.1 g)

The southeastern myotis is distinguishable from other Myotis species by its woolly, bi-colored fur (dark brown at the base with pale tips) and especially long toe hairs. Summer habitat includes hardwood and mixed forests, coastal areas, and a wide range of riparian habitat. Maternity colonies are often associated with caves, but have also been observed in hollow trees and man-made structures like bridges and culverts. In its southern range, the species remains active for much of the winter, but individuals in the northern range hibernate in some of the same structures used for summer roosts (e.g., caves). Females of this species typically give birth to twin pups. Diet consists primarily of mosquitoes, crane flies, and moths.

Conservation Status

Canada Species at Risk


There are various sources for bat species range maps including IUCN, NatureServe, U.S. Fish and Wildlife Service ECOS, and the National Atlas of the United States (left). 


Photo Credit: Dane Smith




NABat utilizes monitoring data provided by a broad network of partners to support regional and range-wide inferences about changes in the distributions and abundances of bat populations facing current and emerging threats.

Information used to populate this page was obtained from the following sources:


NatureServe Explorer

United States Fish and Wildlife Service Environmental Conservation Online System 

Bat Conservation International Bat Profiles

National Atlas of the United States. (2011). North American Bat Ranges, 1830-2008. National Atlas of the United States. Available at:

Taylor, M. 2019. Bats: an illustrated guide to all species. Washington, DC: Smithsonian Books.