Notonectidae (family)
Notonectidae (family) (Backswimmer)
Family Notonectidae. Elongate water bugs, with two prominent, narrow swimming legs. They swim with a jerky motion. Common insects in wetlands and slow river sections.
Identification guide for larvae: The Waterbug App. This is a very helpful guide for identifying aquatic insects, including backswimmers. The App is free, and available for iOS and Android devices.
