''Copelatus villiersi'' is a species of

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

. It is part of the subfamily

Copelatinae Copelatini is a tribe of diving beetles in the family Dytiscidae. It is the sole tribe in the subfamily Copelatinae. The largest genus within the tribe is ''Copelatus'', which has about 470 described species found worldwide, but most diverse in t ...

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 ...

. It was described by

Félix Guignot Félix Guignot was a French physician and entomologist, born on 16 November 1882 in Avignon, France. After studying medicine at the University of Montpellier he established a Medical practice, private practice in his hometown of Avignon. He pra ...

in 1950.Copelatus
Integrated Taxonomic Information System (ITIS) Report. Retrieved 8 June 2012.

References

villiersi Beetles described in 1950 Taxa named by Félix Guignot {{Copelatus-stub