Trichoptera, commonly known as caddisflies, are an order of insects closely related to moths. They are characterized by their hairy wings and aquatic larvae, which are often found in freshwater habitats. Caddisflies play a vital role in the ecosystem, serving as both prey for fish and indicators of water quality. The larvae of caddisflies are known for their unique behavior of constructing protective cases from materials like twigs, pebbles, and plant fibers. These cases provide camouflage and protection from predators. Adult caddisflies typically emerge in the spring and summer, contributing to the biodiversity of their environments.