Homalium caesum var. subruficorne Bagnall, 1906 Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Animalia phylum Arthropoda class Insecta order Coleoptera family Staphylinidae genus Omalium species Omalium rugatum Name Homonyms Homalium caesum var. subruficorne Bagnall, 1906