Tied Down Caddis orange - Larva & Pupa. The Orange Tied Down Caddis is an imitation that can be used to catch trout on both rivers and lakes. This fly can provide fantastic results all along the Western Coast of the United States, and Canada. The Orange Tied Down Caddis is frequently fished in the surface film to resemble a still born. This diverse fly can be highly effective at representing larger Caddis and Stone flies. If the Tied Down Orange Caddis is fished as such it can provide devastating results with Steelhead trout.