The most dazzling effects

Edward George Boulenger, Animal mysteries, Ill. L. Brightwell, Londres, Duckworth, 1927, p. 126.

The larva of the caddis fly construct remarkable tubular houses from shells, gravel, and sticks. They are very entertaining to watch when placed in a small aquarium, especially when provided with coloured beads, which they will use for the construction of their homes with the most dazzling effects.