This spent caddis pattern in size #16 imitates egg-laying caddis lying flat on the water, a stage that brings aggressive rises.
Fish it dead-drift on flat water during evening caddis activity, when trout sip spent adults.
Restock before your next trip so you are ready the moment fish start rising. Present it with a drag-free drift, mending your line as needed to extend the drift through the feeding lane.