Sphaeridium scarabaeoides var. lunatum F. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Animalia phylum Arthropoda class Insecta order Coleoptera family Hydrophilidae genus Sphaeridium species Sphaeridium lunatum Name Homonyms Sphaeridium scarabaeoides lunatum Fabricius, 1792 Sphaeridium scarabaeoides var. lunatum F.