RANGE:

The western to southern portion of British Columbia, southern Alberta, east across northern Montana to the western edge of the Dakotas, then almost due south into central Mexico, and west into Baja California and along the Pacific Coast states of California, Oregon, and Washington. In Idaho, this species has been collected in twelve counties.

DESCRIPTION:

The upper fur is usually cinnamon to brownish. Dense fur on the underside of the wing membrane occurs from the belly to a line joining the elbow and knee, the only Idaho species with this characteristic. The ears are short, rounded at the margin and barely reach the end of the nose when laid forward. The calcar is keeled, and the foot relatively small.

HABITAT:

This bat occurs in a variety of habitats from desert to mountainous coniferous forests, where it appears to be most common, especially if open water occurs in the area. Summer roosts include cliff crevices, cracks in the ground, hollows in snags, or hollow areas under exfoliating bark and in living trees, and old buildings. Winter hibernal sites include caves and mines tunnels. No large winter concentrations of this species have been found in mines in Idaho.

DIET:

Long-legged myotis eat a variety of small insects found in forests including moths, leafhoppers, lacewings, termites, flies, and small beetles. The food taken may vary with insect availability.

ECOLOGY:

In many other states, this species appears to be abundant. This species migrates locally, perhaps taking advantage of changing insect populations especially in fall. Long-legged myotis have a flight pattern that appears to be planned and direct. They are known to traverse large areas of forest or water when feeding.

REPRODUCTION:

Mating takes place during the fall, and ovulation and implantation in spring. Several hundred individuals may occur in nursery colonies. A single pup is born in mid-summer. Very little is known about this species in Idaho.

IMPORTANT STATE REFERENCE:

Keller, B.L. 1987. Analysis of the bat species present in Idaho, with special attention to the spotted bat, Euderma maculatum. Department of Biological Sciences, Idaho State University, Pocatello. 25pp.