Imperium naturæ C. Linnaeus, 1758 - nature
   Mundus Plinius - physical world
     naturalia - natural bodies
       Regnum Animale C. Linnaeus, 1758 - animal kingdom see Kingdom Animalia Linnaeus, 1758
         Class Insecta Linnaeus, 1758 - insects
           Order Neuroptera Linnaeus, 1758 - lacewings
             Genus Ephemera Linnaeus, 1758
               1 Cauda triseta
               2 Cauda biseta
               3 Cauda mutica