From the September 3, 1932, issue
By Science News
INSECT LARVAE MAKE MOSAIC JEWELRY
Manufacturers of modern jewelry might well turn to the larvae of the caddis fly for effective models for small containers–tiny perfume bottles, say, or lipstick cases. These water-dwelling “worms” build mosaic coverings for the little cylindrical houses they spin for themselves, taking bits of sand and gravel from the streambed and stopping the posterior ends with larger pebbles. These mosaic cases serve at once as camouflage and armor.