water boatman

any of a family (Corixidae) of hemipterous water bugs that swim about in ponds and streams by vigorous movement of the fringed, oarlike hind legs

See water boatman in American Heritage Dictionary 4

noun
Any of various aquatic insects of the families Corixidae and Notonectidae, having long oarlike hind legs adapted for swimming.

Learn more about water boatman

link/cite print suggestion box