Imperium naturæ C. Linnaeus, 1758 - nature Status: extant Mundus Plinius - physical world Status: extant naturalia - natural bodies Status: extant Regnum Animale C. Linnaeus, 1758 - animal kingdom see Kingdom Animalia Linnaeus, 1758 Status: extant Class Insecta Linnaeus, 1758 - insects Status: extant Order Aptera Linnaeus, 1758 Status: extant Genus Pediculus Linnaeus, 1758 Status: extant Pediculus infausti Linnaeus, 1758 Status: extant