There's a wingless fly, also known as a 'face huggers' or 'bat flies', that feeds off the blood of bats. Most would think the thing was a tick or a spider but it's a parasitic fly, the Penicillidia type, that is exclusive only to long-winged bats.
Bat flies are parasitic insects that are adept at attaching themselves to unwilling bats and feeding on their blood for as long as they want. Commonly, these nasty looking things attach themselves to a bat's face....
It Feeds On Bat Blood
Bat flies are parasitic insects that are adept at attaching themselves to unwilling bats and feeding on their blood for as long as they want. Commonly, these nasty looking things attach themselves to a bat's face....
It Feeds On Bat Blood