Fly Hatch Chart for the Rio Grande River, Colorado

The Hatch

Try These Flies

Time of Year

Attractor Trout Flies

Learn About Attractor Trout Flies

Attractor Nymphs
Attractor Dry Flies

April-October

Baetis or Blue-winged Olive

Learn About The Baetis Mayfly Hatch

Baetis Nymphs and Emergers
Baetis Dry Flies

September-November

Caddis Flies

Learn About The Caddis Hatch

Caddis Larva and Pupa

Caddis Dry Flies

April-August

Callibaetis Mayfly Patterns

Nymphs and Emergers:

Dry Flies:

April

Green Drake Mayfly

June-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

June-July

Red Quill Mayfly

July-August

Salmonfly, Skwala and Dark Stonefly

Learn More About The Stonefly Hatch

June-July

Streamers

Wooly Buggers

April-May, September-November

Terrestrials

July-October