Kingdom Animalia Linnaeus, 1758 - animals Phylum Arthropoda Siebold, 1848 - arthropods Superclass Hexapoda Latreille, 1825 Class Insecta Linnaeus, 1758 - insects Subclass Palaeoptera Martynov, 1923 see Infraclass Paleoptera Order Ephemeroptera Hyatt & Arms, 1891 - mayflies