| system | Vitae - living organisms |
| domain | Eukaryota Whittaker & Margulis, 1978 - lifeforms with nucletic cells |
| superregnum | Unikonta |
| system | Opisthokonta Cavalier-Smith, 1987 |
| kingdom | Animalia Linnaeus, 1758 - animals |
| subregnum | Eumetazoa Butschli, 1910 |
| divisio | Bilateria Hatschek, 1888 - bilaterians |
| subdivisio | Protostomia Grobben, 1908 - protostomes |
| phylum | Arthropoda Gravenhorst, 1843 - arthropods |
| subphylum | Hexapoda Blainville, 1816 - hexapods |
| class | Insecta Linnaeus, 1758 - insects |
| subclass | Pterygota Lang, 1888 |
| infraclass | Palaeoptera Martynov, 1923 |
| superorder | Ephemeropteroidea Rohdendorf, 1968 |
| order | Ephemeroptera Hyatt & Arms, 1891 - mayflies |
| suborder | Setisura |
| superfamily | Heptagenioidea |
| family | Oligoneuriidae Ulmer, 1914 |
| subfamily | Isonychiinae Burks, 1953 |
| genus | Isonychia Eaton, 1871 |
| subgenus | Prionoides Kondratieff & Voshell, 1983 |
| species | Isonychia notata Traver, 1932 |