''Nartus sinuatus'' Black with dark rufous legs; posterior margin of pronotum arched just before hind angles(3) is a species of

predaceous diving beetle The Dytiscidae – based on the Greek ''dytikos'' (δυτικός), "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, but a ...

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 a ...

, found in North America. This species was formerly a member of the genus ''

Rhantus ''Rhantus'' is a genus of beetle in family Dytiscidae. There are about 100 species distributed worldwide. They often live in pools and marshy habitat types.Alarie, Y., et al. (2009)Larval morphology of ''Rhantus'' Dejean, 1833 (Coleoptera: Dytisc ...

''.

References

Dytiscidae Articles created by Qbugbot Beetles described in 1862 {{dytiscidae-stub