·Biota
·Eukaryota
·Animalia
·Arthropoda
·Insecta
·Coleoptera
·Polyphaga
·Hydrophiloidea
·Hydrophilidae
·Hydrophilinae
·Hydrophilini
·Hydrophilus
·Hydrophilus (Hydrophilus)
·Hydrophilus (Hydrophilus) ensifer
SSHydrophilus (Hydrophilus) ensifer duvaliCurrent