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 Hemiptera Linnaeus, 1758 - true bugs
             Genus Nepa Linnaeus, 1758
               1 Nepa grandis Linnaeus, 1758
               2 Nepa rubra Linnaeus, 1758
               3 Nepa fusca Linnaeus, 1758
               4 Nepa atra Linnaeus, 1758
               5 Nepa cinerea Linnaeus, 1758
               6 Nepa cimicoides Linnaeus, 1758
               7 Nepa linearis Linnaeus, 1758 see Ranatra linearis (C. Linnaeus, 1758)