Nixe perfida (McDunnough, 1926) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Arthropoda class Insecta order Ephemeroptera family Heptageniidae genus Nixe species Nixe perfida Name Synonyms Ecdyonurus perfidus (McDunnough, 1926) Heptagenia perfida McDunnough, 1926 Homonyms Nixe perfida (McDunnough, 1926)