Crossocerus niger (Provancher, 1888) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Arthropoda class Insecta order Hymenoptera family Crabronidae genus Crossocerus species Crossocerus leucostoma Name Homonyms Crossocerus niger (Provancher, 1888) Crossocerus niger (Provancher, 1888)