Hexapods - insects
see Epiclass Hexapoda Latreille, 1825
Class Insecta Linnaeus, 1758 - insects
Subclass Dicondylia Haeckel, 1866
Infraclass Pterygota Lang, 1888
Division Neoptera Martynov, 1923
Order Plecoptera Latreille, 1802 - stone flies
Suborder Arctoperlaria Zwick, 1973
Superfamily Perloidea Latreille, 1802
Family Perlodidae Klapalek, 1912
Subfamily Isoperlinae (Frison, 1942)
1 Genus Calliperla Banks, 1948
2 Genus Cascadoperla Szczytko & Stewart, 1979
3 Genus Clioperla Needham & Claassen, 1925
4 Genus Cosumnoperla Szczytko & Bottorff, 1987
5 Genus Isoperla Banks, 1906