''Pachydrus'' is a genus of

beetle Beetles are insects that form the Taxonomic rank, order Coleoptera (), in the superorder Holometabola. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Coleoptera, with about 40 ...

s in the family

Dytiscidae The Dytiscidae, from the Ancient Greek word δυτικός (''dystikos''), meaning "able to dive", are the predaceous diving beetles, a family of water beetles. They occur in virtually any freshwater habitat around the world, but a few species l ...

, containing the following species:Dytiscidae Species List
at Joel Hallan's Biology Catalog. Texas A&M University. Retrieved on 7 May 2012. * '' Pachydrus brevis'' Sharp, 1882 * '' Pachydrus cayennensis'' (Laporte, 1835) * '' Pachydrus cribratus'' Sharp, 1882 * '' Pachydrus globosus'' (Aubé, 1838) * '' Pachydrus obesus'' Sharp, 1882 * '' Pachydrus obniger'' (Chevrolat, 1863) * '' Pachydrus politus'' Sharp, 1882 * '' Pachydrus princeps'' (Blatchley, 1914) * '' Pachydrus ritsemae'' Régimbart, 1883

References

Dytiscidae {{Dytiscidae-stub