Water boatman : A boat bug.

Example:


Taxonomy
Water boatman, swim, free encyclopedia, insect, USA, search, plant, small animals, ponds, slow moving, streams, way-up, In Britain, backswimmers, upside-down, predators, disambiguation pages, legs.

Defination from the web:
Water boatman. From Wikipedia, the free encyclopedia. Jump to: navigation, search. Water boatman, as a type of insect, can mean: ... They inhabit ponds and slow moving streams, where they swim right-way-up near the bottom. ...