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 Chermes Linnaeus, 1758, nom. illeg. Chermes cerastii Linnaeus, 1758