(Ancient Greek - pleco = folded or braided ; pteron = wing)
Aquatic insects that live in running water as larvae.
Insects in this order
© Roger Key Diura bicaudata male Stoneflies are freshwater invertebrates and most species live in fast flowing upland freshwater. Nymphs require highly oxygenated and unpolluted water, their presence is therefore an indicator of good water quality. More than 30 different species of stonefly...