Hydrocolus - Species Dictionary - Global : iSpot Nature - Your place to share nature. iSpot is a website aimed at helping anyone identify anything in nature. Once you've registered, you can add an observation to the website and suggest an identification yourself or see if anyone else can identify it for you.

Catalogue of Life
Animalia, Arthropoda, Insecta, Coleoptera, Dytiscidae, Hydrocolus
Hydrocolus oblitus, Hydrocolus persimilis, Hydrocolus deflatus, Hydrocolus filiolus, Hydrocolus paugus, Hydrocolus rufiplanulus, Hydrocolus stagnalis, Hydrocolus rubyi, Hydrocolus heggiensis, Hydrocolus sahlbergi, Hydrocolus oblitoides, Hydrocolus rupinus