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Fringed Myotis Myotis thysanodes


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Fringed Myotis
credit: NPS

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Family: Vespertilionidae, Vespertilionid Bats view all from this family

Description Easily distinguished by long ears and distinct fringe of hairs along posterior edge of tail membrane. Has the shortest ears among this group of long-eared Myotis. Forearm 40-46mm.

Dimensions 80-99mm, 35-45mm, 6-12g

Warning Bats are susceptible to rabies, a serious viral disease that results in death if untreated. Rabid bats rarely attack humans or other animals, but bats found lying on the ground may be rabid. Never touch or pick up any bat. Stay away from any animal that seems to be acting strangely and report it to animal-control officers. If you are bitten by a possibly rabid animal, you must immediately consult a doctor for a series of injections; there is no cure once symptoms emerge.

Habitat Canyons & caves, Deserts, Cities, suburbs & towns, Forests & woodlands

Range Plains, Rocky Mountains, Southwest, Texas, California, Northwest, Western Canada

Discussion Females and young found in maternity colonies in caves, mines, and buildings at middle elevations from April to September. Males more likely to roost alone. Occurs in wide range of desert, grassland, and woodland habitats.