Hydrophilus melanocephalus Olivier, 1793 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Arthropoda class Insecta order Coleoptera family Hydrophilidae genus Enochrus species Enochrus melanocephalus Name Homonyms Hydrophilus melanocephalus Fabricius, 1801 Hydrophilus melanocephalus Olivier, 1793