They diffuse a disagreable odour

T. Wilson, The little book of nature : comprising the elements of geology, mineralogy , Londres, Darton and Clark, 1845, p. 48.

These insects greatly resemble little moths ; fly chiefly at night and are often attracted by light into houses. They diffuse a disagreable odour ; and deposit their eggs on plants near water. The larvae, which are exceedingly like caterpillars, and live in the water, form for themselves ingenious little cylindrical habitations of shells, stones, leaves, seeds, sand &, arranged with the utmost nicety and connected by threads of silk, with substance also the abode is lined.
These habitations are seldom or never to be found alike ; they made often seen moving about in shallow clear water, and the inhabitant is called a case or caddis-worm.