Fly Tying: an introduction to the art   

Dry flies have been used for several hundred years.

These flies imitate an insect that has already hatched from its nymphal state, has wings, and is sitting on top of the water. 

Dry flies are most effective when imitating aquatic insects that hatch from the water system and will be most effective when the majority are transforming to the winged adult stage. This can be seen frequently with mayflies, stoneflies, caddisflies, and even others like crane flies and midges.

Due to the need for a dry fly to float they are tied on a hook made from a “light” wire. 

When you see insects swarming on top of the water, that is when you fish dry flies.

Wet Flies are fished below the surface. They typically imitate flies that have been swept below the surface. Some flies even penetrate the water's surface to lay eggs. Wet flies have a stronghold in the classical roots of fishing with artificial flies and have many classical recipes and fly patterns used. Wet flies are typically swung across a stream or section of current with a tight line. This can be done with a floating or sinking fly line.

Nymphs imitate the nymphal stage of aquatic insects. Like dry flies, a nymph pattern can become more active during their proper hatching period. The flies coincide with the same species of aquatic insects you'll use when fishing dry flies.

This can vary by strategy, though.

Using Nymphs for trout is a very productive way to catch, as most of a trout’s food is consumed below the surface.