Ecdyonurus rivulicolus McDunnough, 1933 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Arthropoda class Insecta order Ephemeroptera family Heptageniidae genus Maccaffertium species Maccaffertium vicarium Name Homonyms Ecdyonurus rivulicolus McDunnough, 1933