Genus Vespertilio, also known as evening bats, is a group of small, insect-eating bats that are found all over the world. These bats are known for their ability to navigate through the darkness using echolocation, high-pitched sounds that bounce off of objects and help the bats locate prey. Some synonyms for Genus Vespertilio include evening bat, common bat, small-footed myotis, and pipistrelle bat. Depending on the specific species, these bats can vary in size and color, but they are all important members of their ecosystems, helping to control insect populations and serving as a food source for larger predators.