Big Chief I-Spy, I-Spy colour Book In Pond and Stream, Londres, New Chronicle, 1954, p. 11.
![big-chief-i-spy-1954](http://trichoptere.hubert-duprat.com/wp-content/uploads/1954/01/big-chief-i-spy-1954-447x625.jpg)
The soft-bodies larva of the Caddis fly is sometimes called the Caddis worm. It lives underwater and protects itself by making a case of anything it can find- sand, small, stones, snail shells, twigs, or leaves. The nit hooks itself inside !