Samuel Orchart Beeton, Beeton’s Famous Voyages, Brigand Adventures, Tales of Battlefield, Life and Nature, Londres, Ward, Lock and Tyler, 1873, p. 323.

Another insect having business under water- namely, the caddis-worm, which covers itself with the tiny shells of young fresh-water mussels ans snails, or with small stones and odds and ends of material-make use of a waterproof cement, said to be superior to pozzolana , being indissoluble in the standing liquid.
Larvae which keep to the land may yet have need to secure themselves.