- Hoppers: These flies are so popular that shops sometimes sell out of them by late summer. They can work beautifully at times, but on some heavily fished streams the trout have seen so many that they get wary of them and it can be worth trying something else.
Beetles: I've had good luck at times with large beetles. The ones I use are made with black, closed-cell foam and have bright orange or chartreuse buttons of yarn tied in on top to increase their visibility. Most go by the generic name of foam beetle. As with hoppers, they're most effective when fished next to the bank on a dead drift.
Stoneflies: Stonefly patterns can work well if the trout are used to seeing and eating the big insects. I usually use Stimulators in various colors to imitate them but will tie on an oversize Goddard Caddis to serve double duty if I think that giant caddis are also in the area. With both patterns, I always try a dead drift first, but I'll twitch or skitter my fly a little if I don't get a strike right away.