Little Brown Myotis (Little Brown Bat)
The little brown myotis, or little brown bat, is a small bat that usually roosts in caves in groups of 20, has dark glossy brown fur on its back, and has ears 5/8 inch long or less that are narrow, naked, with bluntly rounded tips. The back fur is two-toned: blackish or dark gray at the base and brown toward the tips. The overall look of the fur on the upper surface of the bat is from yellowish brown to olive brown; the glossy tips of the hairs give it a metallic sheen. The wing and tail membranes and the ears are glossy dark brown. There are 6 species of myotises (mouse-eared bats) in Missouri, and they require close examination to be distinguished from each other.