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
               1 Arielulus aureocollaris (Kock & Storch, 1996)
               2 Arielulus circumdatus (Temminck, 1840)
               3 Arielulus cuprosus (Hill & Francis, 1984)
               4 Arielulus societatis (Hill, 1972)
               5 Arielulus torquatus Csorba & Lee, 1999