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 Eptesicini Volleth & Heller, 1994 Genus Arielulus Hill & Harrison, 1987 Arielulus cuprosus (Hill & Francis, 1984)