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 Hymenoptera Linnaeus, 1758 - ants, bees, and wasps Genus Mutilla Linnaeus, 1758 Mutilla americana Linnaeus, 1758