Long-eared Myotis
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Myotis evotis
Scientific name translation: "Mouse-eared", "Good ear" |
Description
Long-eared myotis are dull to pale brown with black ears that are the largest ears when pushed forward of any Myotis in North America. Because their face and ears are generally dark or black it gives them a mask-like appearance. Long-eared myotis have a long, slender tragus and their calcar has little to no keel. Their head and body length ranges from 43–52 mm, tail length ranges from 36–45 mm, ear length ranges from 18–24 mm, and forearm length ranges from 37–40 mm.
Distribution
This species has a limited distribution in South Dakota, often only found on the western half of the state. They will occupy habitats that include forests, shrublands, meadows, and wooded stream courses.
Ecology
Long-eared myotis will choose roosting sites high in tree cavities, caves or cave-like structures, and old buildings. Colonies will emerge from hibernacula in April or May with pups being born late May through July. Colonies will return to hibernacula in the late fall, typically September or October.
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