Evening bats or, perhaps more correctly, Vesper bats (family Vespertilionidae) are the largest and best-known family of bats. They belong to the suborder Microchiroptera (microbats). There're over 300 species distributed all over the world, on every continent except Antarctica. Sometimes the family's called "common bats". It owes its name to the latin word vesper, meaning "evening". Characteristics Almost all Vesper bats are insect-eaters, exceptions being some Myotis and Pizonyx that catch fis… (More on Vespertilionidae)