Description: A medium-sized (wingspread: 25 - 27 cm [10 - 11 in.]; mass: 7 - 9 g [0.25 - 0.32 oz]) bat with tawny, dark reddish, or nearly black fur above; grayish to pale buff below. Ears short and rounded. Underside of membranes furred to a line between the elbow and the knee. Other bats with a similar appearance and likely to be found in southern Nevada have the underside of wing membrane naked to the elbow. Long-legged myotis mate in fall; one offspring born during June to July. Females form maternity colonies of up to several hundred individuals. Lifespan up to 21 years.
Diet: Small moths and other small beetles, flies, and termites.
Habitat: Primarily mixed conifer and pinyon-juniper habitats above
1,220 m (4,000 ft.) elevation. Found in low numbers in virtually all areas
of Clark County, Nevada. Day roosts include hollow trees (especially large snags), under bark, rock crevices, mines, and buildings. Night roosts include caves and mines. Depends on constant sources of water, especially rivers and springs. Hibernates in caves and mines other than roost sites.
Range: Occurs throughout western North America from southern
Alaska to northern Mexico. Found throughout Nevada, it may be less
abundant in the southern portion and only found at higher elevations in
the Spring Mountains. May be a permanent resident in Nevada, but winter
behavior is poorly understood.