Plecoptera · ankstyvės

en: Stoneflies de: Steinfliegen Subclass: Pterygota Infraclass: Neoptera Superorder: Exopterygota Order: Plecoptera The nymphs are aquatic and live in the benthic zone of lakes and streams. All species of Plecoptera are intolerant of water pollution and their presence in a stream or still water is usually an indicator of good or excellent water quality.