''Rhantaticus congestus'' is a species 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 ...

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 ...

, the only species in the genus ''Rhantaticus''. The current definition of ''R. congestus'' makes it one of the most widespread dytiscid species in the world, found throughout much of Africa, the Middle East, India, Southeast Asia, and the Philippines to Australia. However, the definition of the genus containing a single species may change as it becomes better understood.

References

Dytiscidae {{Dytiscidae-stub