Caudatella hystrix (Traver, 1934) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Arthropoda class Insecta order Ephemeroptera family Ephemerellidae genus Caudatella species Caudatella hystrix Name Synonyms Caudatella cascadia (Allen & Edmunds, 1961) Ephemerella cascadia Allen & Edmunds, 1961 Ephemerella hystrix Traver, 1934 Ephemerella spinosa Mayo, 1951 Homonyms Caudatella hystrix (Traver, 1934)