Oosternum
Oosternum is a genus of water scavenger beetles in the family Hydrophilidae. There are more than 20 described species in Oosternum.
Species
These 23 species belong to the genus Oosternum:Oosternum acuthecaOosternum aequinoctiale Motschulsky, 1855Oosternum andersoni Deler-Hernández, Cala-Riquelme & Fikáček, 2014Oosternum attacomis Spangler, 1962Oosternum attenuatumOosternum bacharenge Deler-Hernández, Cala-Riquelme & Fikáček, 2014Oosternum cercyonoides Deler-Hernández, Cala-Riquelme & Fikáček, 2014Oosternum cicatricosumOosternum convexumOosternum costatum Oosternum gibbicolleOosternum holosericeumOosternum horni d'Orchymont, 1914Oosternum insulare Deler-Hernández, Cala-Riquelme & Fikáček, 2014Oosternum intermediumOosternum latum Fikacek, Hebauer & Hansen, 2009Oosternum luciae Deler-Hernández, Cala-Riquelme & Fikáček, 2014Oosternum megnai Deler-Hernández, Cala-Riquelme & Fikáček, 2014Oosternum okinawaense Hoshina, 2011Oosternum pecki Deler-Hernández, Cala-Riquelme & Fikáček, 2014Oosternum pubescens Oosternum sharpi Hansen, 1999- ''Oosternum simplex''