Chostonectes
Chostonectes is a genus of beetles in the family Dytiscidae, containing the following species:Chostonectes gigas Chostonectes johnsonii Chostonectes maai Balke, 1995Chostonectes nebulosus Chostonectes sharpi Sharp, 1882Chostonectes wattsi Wewalka, 1994