Trout can often be seen exploding with an escaping caddis emerging from the trout's chase. Caddis duns can also be fished with a dead drift or skated presentation. These flies tend to hop on skitter on top of the water. Larger trout usually don't expend the energy to chase adult caddis. Spent caddis are very important, as with mayflies they present an easy meal for trout.
Stoneflies come in a variety of sizes and colors.
They can be anything from a size 2 or 4 up to a size 18. They are an important bug especially in the nymph stage. Stonefly nymphs present a good majority of the fish caught during the trout season. They are often large easy meals for trout. Stoneflies usually aren't known for being fished in the emerger stage, because they crawl out of the water to hatch.