''Onychohydrus'' is a genus of
beetle
Beetles are insects that form the order Coleoptera (), in the superorder Endopterygota. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Coleoptera, with about 400,000 describ ...
s in the family
Dytiscidae
The Dytiscidae – based on the Greek ''dytikos'' (δυτικός), "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 live ...
. The genus is found in Australia, Tasmania, and New Zealand's North Island. The genus consists of these two species:
* ''
Onychohydrus hookeri''
(White, 1846)
* ''
Onychohydrus scutellaris''
(Germar, 1848)
References
Dytiscidae genera
{{Dytiscidae-stub