Hydrocolus
Hydrocolus is a genus of beetles in the family Dytiscidae, containing the following species:Hydrocolus deflatus Hydrocolus filiolus Hydrocolus heggiensis Ciegler, 2001Hydrocolus oblitoides Roughley & Larson, 2000Hydrocolus oblitus Hydrocolus paugus Hydrocolus persimilis Hydrocolus rubyae Hydrocolus rufiplanulus Hydrocolus rupinus Roughley & Larson, 2000Hydrocolus sahlbergi Nilsson, 2001