Caddisfly Larva in Its Mobile Home (IMAGE) University of Utah Caption This caddisfly larva -- known as a "rock roller" to Utah and Wyoming fly fishermen -- lives underwater and spins natural sticky silk to build an underwater mobile home or case made of sand and rock grains (right half of image). But when placed in a laboratory aquarium with glass beads, the larva uses those beads to continue building its case (center). University of Utah bioengineer Russell Stewart has characterized the caddisfly's wet adhesive silk and hopes to synthesize a version for use as an adhesive tape during surgery. Credit Fred Hayes. Usage Restrictions Photo must be credited to Fred Hayes License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.