1.Insects and Their Importance in Fly Fishing 10 -- 2. Materials 16 -- 3. Mayfly Nymphs 26 -- Types of Natural Mayfly Nymph 27 -- Dressing the Mayfly Nymph 30 -- Other Wing-Case Forms 35 -- Selected Nymph and Important Emerger and Wet-Fly Dressings 37 -- 4. Mayfly Duns and Spinners 48 -- Dressing the Mayfly Dun 49 -- Dressing the Cut-Wing Isonychia Dun 56 -- Realistic Dressing 60 -- Dressing the Mayfly Spinner 65 -- Selected Mayfly Dun and Spinner Dressings 68 -- 5. Caddisflies 84 -- Dressing the Caddis Larva 85 -- Selected Larva Dressings 88 -- Dressing the Caddis Pupa 89 -- Selected Pupa Dressings 94 -- Dressing the Caddis Adult 98 -- 6. Stonefly Nymphs 104 -- Dressing the Stonefly Nymph 107 -- Note on Additional Patterns 110 -- Adult Stonefly 111 -- 7. Hellgrammite Larvae and Crustaceans 112 -- Crustaceans 118 -- 8. Terrestrial Insects 122 -- Beetles 123 -- Crickets and Grasshoppers 127 -- Red and Black Ants 129 -- Crane Fly or Daddy Long Legs 131 -- Selected Patterns 134 -- 9. Coastal Flies 136 -- Selected Patterns 143 -- 10. Northern Pike Flies 146 -- Hammerhead Frog 147.