Examples from the Web for caddis worm
Ernst H.—Your insect from Colorado answers the description of the caddis-worm.
The insect I mean is the caddis-worm, which is to be found sometimes in ponds, and very often in springs of fresh water.Natural History|Anonymous
The particular species of Caddis-worm I have chosen is found in muddy-bottomed, stagnant pools crammed with small reeds.Insect Adventures|J. Henri Fabre
The Caddis-Worm is quite in the modern manner, having no plot—or what has been contemptuously called "anecdote."
Every fisherman knows the Caddis-worm, which is the larval form of the Caddis-fly.Old Flies in New Dresses|Charles Edward Walker