Which solitary bat is characterized by a brown but not glossy appearance?

Keen's Bat is recognized for its distinct appearance characterized by a brown fur that lacks a glossy sheen, setting it apart from other species. This bat is typically found in forested or shrubland habitats and is known for being solitary in its roosting habits. The dull appearance of its fur serves as a form of camouflage against the tree bark and surroundings, which is advantageous for both roosting and foraging.

In the context of the other bats mentioned, the Evening Bat is generally a darker brown and tends to have a more glossy appearance. The Silver-haired Bat is distinguished by its unique silver-tipped fur, creating a glimmering effect. The Red Bat, on the other hand, is known for its striking reddish coloration and also exhibits a more noticeable glossiness in its fur. Each of these bats possesses features that differ greatly, particularly in their fur texture and coloration, making Keen's Bat identifiable by its specific non-glossy brown appearance.