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Smithsonian National Museum of Natural History, North American Mammals

  Chiroptera · Vespertilionidae · Lasiurus blossevillii

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Lasiurus blossevillii

Western Red Bat

Order: Chiroptera
Family: Vespertilionidae

Image of Lasiurus blossevillii
Illustrations of Lasiurus borealis, (eastern red bat); L. blossevilli is quite similar in appearance but slightly smaller
Click to enlarge this image. (98 kb)

Conservation Status: Least Concern.

This close cousin to the eastern red bat (Lasiurus borealis) is genetically distinct.  These bats are found along the west coast and southwestern US and into Mexico where thought to hibernate in the winter.  Lasiurine bats are solitary creatures that roost in broad leaved trees, especially cottonwoods and willows in the foothills and lower mountains of the southwest and in the fruit and nut orchards of the west, where they resemble dried leaves when they are curled up and asleep.  They are often found near streams.  Their preferred diet is moths -  street lamps are the ideal cafeteria for these tasty morsels.


Range: 92-112 mm


Range: 6-10 gm


Lesson and Garnot, 1826.  Voyage autour du monde exécuté sur la Corvette La Coquille, 1822-1825,  Duperrey LJ (ed), Zool. 1: 1-360.


Mammal Species of the World (opens in a new window).

Distribution of Lasiurus blossevillii

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