Caddice
Caddice , noun
[Prov. English caddy, cadew; compare German koder bait.]
(Zoology) The larva of a caddice fly. These larva generally live in cylindrical cases, open at each end, and covered externally with pieces of broken shells, gravel, bits of wood, etc. They are a favorite bait with anglers. Called also caddice worm, or caddis worm.
Also: Caddis