Teeny-Tiny, Size 20 & 22 Nymph flies for Trout fishing

Top Nymph Assortment The Catch and The Hatch

The 5 best double nymph rigs Hatch Magazine - Fly Fishing, etc.

Tying Very Small Flies - RiverKeeper Flies

Micro Flies For Grayling & Trout - Sunray Fly Fish

Hand-Tied By Professionals Who Take Great Pride In Their Craftsmanship Flies Are Tied Using High Quality Mustad Hooks Country Of Origin: South Africa

BH Prince Nymph Assortment Trout Fishing Flies (1-Dozen), Black

The Compleat Guide to Northeastern Fly Fishing Trout Tactics - The Compleat Angler

9 Guide Proven Dry Flies to Catch Trout

The Hendrickson nymph is a universally used trout fly. This fly can be used to imitate mayflies and even some small stoneflies.

Hendrickson Nymph

The Dependable Dozen of Must-Have Trout Flies - Game & Fish

Tips for nymping with tiny flies Hatch Magazine - Fly Fishing, etc.

Tom Rosenbauer's 12 Essential Trout Flies - Orvis News