Class Mammalia Linnaeus, 1758 - mammals Order Chiroptera Blumenbach, 1779 - bats Family Vespertilionidae Gray, 1821 - vespertilionid bats Subfamily Vespertilioninae Gray, 1821 Genus Nycticeius Rafinesque, 1819 - evening bats Subgenus Nycticeinops Hill & Harrison, 1987 - Schlieffen's twilight bat see Genus Nycticeinops Hill & Harrison, 1987