Fly Hatch Chart for the Greys River, Wyoming

The Hatch

Try These Flies

Time of Year

Attractor Trout Flies

Learn About Attractor Trout Flies

Attractor Nymphs
Attractor Dry Flies

June-October

Caddis Flies

Learn About The Caddis Hatch

Caddis Larva and Pupa

Caddis Dry Flies

March-October

Callibaetis Mayfly Patterns

Nymphs and Emergers:

Dry Flies:

July-August

Grey Drake Mayfly

July-August

Little Yellow Stonefly or Yellow Sally

Learn About The Little Yellow Stonefly Hatch

Stonefly Nymphs
Yellow Sally Adult Stoneflies

July-August

Midges or Chironomids

Learn About The Midge or Chironomid Hatch

Midge Larva
Midge Pupa or Emergers
Midge Adult Dry Flies

All Year

Pale Morning Dun or PMD (Ephemerella)

Learn About The PMD Hatch

PMD Nymphs and Emergers
Mayfly Emergers
PMD Dun & Spinner

July-September

Salmonfly, Skwala and Dark Stonefly

Learn More About The Stonefly Hatch

June-July

Streamers

Wooly Buggers

April-May, September-November

Terrestrials

July-October