''Hydaticus ricinus'', is a species of
predaceous diving beetle
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 li ...
found in India, Afghanistan, Bhutan, Myanmar, Nepal, Pakistan, Sri Lanka, China, Laos, Thailand, and Vietnam.
Description
Male is about 9.5 mm long. Suture between the metepisternum and metasternal wings is straight. Apical spurs of the hind tibiae are simple, and pointed. Scutellum is visible.
References
Dytiscidae
Insects of Sri Lanka
Insects described in 1979
{{Dytiscidae-stub