Dianthidium ulkei reductum Timberlake, 1943 Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Animalia phylum Arthropoda class Insecta order Hymenoptera family Megachilidae genus Dianthidium species Dianthidium ulkei Name Homonyms Dianthidium ulkei reductum Timberlake, 1943