Natura - nature actualia - actual entities Mundus Plinius - physical world naturalia - natural bodies ["Animale Regnum" nom. inval. - animal kingdom] see Kingdom Animalia Linnaeus, 1758 [Class "Insecta" nom. inval. - insects] see Class Insecta Linnaeus, 1758 [Order "Hemiptera" nom. inval.] see Order Hemiptera Linnaeus, 1758 [Genus "Notonecta" nom. inval.] see Genus Notonecta Linnaeus, 1758 1 ["Notonecta aquatica" nom. inval.]