Baetis posticatus (Say, 1823) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Arthropoda class Insecta order Ephemeroptera family Baetidae genus Baetis species Baetis posticatus Name Synonyms Cloe posticata (Say, 1823) Cloeon posticata Say, 1823 Homonyms Baetis posticatus (Say, 1823)