Caddisflies are important component of the aquatic insect community. The larvae live in water especially flowing streams. Larvae look much like a caterpillar with few hairs.
Some larvae make small cases to hide in out of sticks, leaves, sand, or pebbles.
However, some larvae do not make any case at all. They feed on organic matter on the bottom of the stream. Adults are live for only a day or two, do not feed and are attracted to lights at night. The adults look like small moths with long antennae and most of them are drab brown or gray.