Pachydrus
Pachydrus is a genus of beetles in the family Dytiscidae, containing the following species:Pachydrus brevis Sharp, 1882Pachydrus cayennensis Pachydrus cribratus Sharp, 1882Pachydrus globosus Pachydrus obesus Sharp, 1882Pachydrus obniger Pachydrus politus Sharp, 1882Pachydrus princeps Pachydrus ritsemae Régimbart, 1883