Bugs Bugs include poppers, divers, and sliders. Twitch these flies forward little by little to disturb the water and attract fish. They imitate large insects, frogs, or mice. Nymphs Nymphs imitate immature insects that live underwater. Nymphs make up a big part of the diets of many fish, including trout, bass, and panfish.
Nymphs often catch fish when nothing else does.
Wet Flies These were probably the first kind of fly ever made. They are made of materials that become waterlogged quickly and sink, so they look like drowned insects and sometimes baitfish. Streamers Big fish, such as pike, muskies, large trout, and bass, are attracted to streamers because they look like baitfish. Retrieve these flies to make them look like swimming fish. These are flies made for special situations.