Boriomyia betulina f. melancholica Killington, 1937 Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Animalia phylum Arthropoda class Insecta order Neuroptera family Hemerobiidae genus Wesmaelius species Wesmaelius nervosus Name Homonyms Boriomyia betulina f. melancholica Killington, 1937