Freshwater-biodiversity
Guides
Hydropsychidae
Net-spinning Caddisflies
Hydropsychidae, commonly known as net-spinning caddisflies, is a family of aquatic insects in the order Trichoptera. Larvae construct silk nets at the openings of their retreats to capture food particles from flowing water. The family is globally distributed in freshwater habitats and serves as important bioindicators of stream health. Larvae exhibit unique behaviors including territorial defense through stridulation and competitive interactions for retreat ownership.