Caddisflies are aquatic insects belonging to the order Trichoptera. They are commonly found in freshwater habitats like streams, rivers, and ponds. Caddisfly larvae are known for their unique behavior of constructing protective cases from materials such as twigs, pebbles, and plant fibers. These cases help shield them from predators and environmental factors. Adult caddisflies resemble moths and have two pairs of wings covered in fine hairs. They typically emerge in the evening and are attracted to lights. Caddisflies play an important role in aquatic ecosystems, serving as food for fish and other wildlife while also contributing to the breakdown of organic matter.