The adults are strong fliers. These animals form the largest family of water bugs and are found all over the world. Over 100 species are in North America. They feed on diatoms, filamentous algae or decaying plant and animal matter. They are eaten by some fish and predacious aquatic insects.
Nymphs are similar to adults with wing buds developing with each molt finally becoming full wings.
The Water Scorpion is a long thin, very unique looking animal. It's look is reminiscent of a land insect, the Walking Stick. They are very interesting to keep in a small tank or bowl. About 12 species are in North America. The animal has long breathing tubes extending from the end of their abdomen which they rest on the water surface while they hold on to a plant or twig under water, waiting for prey to come by.