Adult caddisflies are commonly 3 to 15 millimetres ( to inch) in length. Their anterior wings usually range from 4 to 20 millimetres in length, providing.
The caddisflies, or order Trichoptera, are a group of insects with aquatic larvae and terrestrial adults. There are approximately 14, described species, most of .
Like all insects, caddisflies have 6 legs, 2 antennae, and 3 body parts. Adult caddisflies resemble moths, with hairy wings and long antennae.