Oulimnius variabilis (Stephens, 1828) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Arthropoda class Insecta order Coleoptera family Elmidae genus Oulimnius species Oulimnius rivularis Name Homonyms Oulimnius variabilis (Stephens, 1828) Oulimnius variabilis (Stephens, 1828)