The false vampire bats ("Megaderma") are a subfamliy of bats. They are two species that occur in Asia. There are two living species, the lesser tailed vampire bat ("Megaderma spasma") and the greater tailed vampire bat ("Megaderma lyra") . They are unrelated to the vampire bats (which only occur in South America). Unlike the vampire bats, they also do not feed on blood, but are insectivores. They are also unrelated to the spectral bat (which is called "Vampyrum", but which is an omnivore)