Class Mammalia Linnaeus, 1758 - mammals Subclass Theria Parker & Haswell, 1897 Order Chiroptera Blumenbach, 1779 - bats Family Vespertilionidae Gray, 1821 - vespertilionid bats Subfamily Vespertilioninae Gray, 1821 Tribe Pipistrellini Tate, 1942 Genus Nyctalus Bowdich, 1825 - noctule bats Nyctalus aviator (Thomas, 1911)