True Bugs

400 species from 15 families inhabit fresh water in North America
Larvae and adults are both aquatic and similar in appearance
Mouthparts are in a elongated beak or cone that is under the head when not feeding
3 pair of segmented legs
Wings or wing pads
No gills

Backswimmers

Broad-Shouldered Water Striders

Creeping Water Bugs

Giant Water Bugs

Water Boatmen

Water Scorpions

Water Striders

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Primary Information Source:
Voshell, J. Reese. 2002. A Guide to Common Freshwater Invertebrates of North America. McDonald and Woodward Publishing Company. Blacksburg, Virginia.