(Omicrus) (Omicrus) is a biological genus in the family Hydrophilidae (Water Scavenger Beetles) and order Coleoptera (Beetles).
Omicrus brevipes
Omicrus globulus
Omicrus palmarum
Agna
Ametor
Anacaena
Berosus
Cercyon
Chaetarthria
Chasmogenus
Coelofletium
Coelostoma
Crenitis
Cryptopleurum
Cyclotypus
Cycrillum
Cymbiodyta
Dactylosternum
Deltostethus
Derallus
Enochrus
Helobata
Helochares
Helocombus
Hemiosus
Heteryon
Horelophopsis
Horelophus
Hydramara
Hydrobiomorpha
Hydrobius
Hydrocassis
Hydrochara
Hydrophilus
Laccobius
Limnoxenus
Megasternum
Nitiduloides
Noteropagus
Omicrus
Oocyclus
Oosternum
Paracymus
Paraoosternum
Pelosoma
Phaenonotum
Phaenostoma
Sperchopsis
Sphaeridium
Tectosternum
Tropisternus