Anonyme, The Concise Household Encyclopedia, vol. 1 Abe-Lim, Londres, The Educational Book Company, 1920, p. 172.
Article Caddis worm
This insect is a very attractive immate of the aquarium, owing to its habit of building a cylindrial case of sand grains, gravel, grass-stalks, small leaves, or snail shells, each species selecting particular materials. They are the larvae of the caddis fly.