Empis unicolor Walker, 1851 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Arthropoda class Insecta order Diptera family Empididae genus Empis species Empis opaca Name Homonyms Empis unicolor Brullé, 1833 Empis unicolor Oldenberg, 1925 Empis unicolor Walker, 1851