Hydrophilidae

Adolopus

Agraphydrus

Allocotocerus

Ametor

Anacaena

Berosus

Bourdonnaisia

Cercyon

Chaetarthria

Cryptopleurum

Cymbiodyta

Enochrus

environmental samples

Helochares

Hemisphaera

Hydrobius

Hydrocassis

Hydrophilus

Laccobius

Megagraphydrus

Megasternum

Paracymus

Regimbartia

Sphaeridium

Sternolophus

Tropisternus