Class [Mammalia] Linnaeus, 1758 - mammals
   Order Chiroptera Blumenbach, 1779 - bats
     Suborder Microchiroptera Dobson, 1875 see Order Chiroptera Blumenbach, 1779
       Family Vespertilionidae Gray, 1821 - vespertilionid bats
         Subfamily Vespertilioninae Gray, 1821
           Genus Eptesicus Rafinesque, 1820 - big brown bats
             Subgenus Eptesicus Rafinesque, 1820
               Eptesicus demissus Thomas, 1916 - Surat serotine see Eptesicus dimissus Thomas, 1916