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Bield:Fish
Hatch profile

Green Drake

Ephemera guttulata
MayflyEvening2-week run
Water temperature trigger
40°50°60°70°80°
Range: 58–70°F · Peak: 65°F
Fly patterns
  • Green Drake Parachute #8-10
  • Coffin Fly Spinner #10
  • Green Drake Comparadun #10
  • Green Drake Nymph #10
Also known as

Eastern Green Drake · Coffin Fly (spinner)

Brief but legendary. The biggest fish in the river will eat these — even fish that never rise to anything else. Penns Creek is the most famous Green Drake river in the East.

Best rivers for the Green Drake hatch

These rivers list the Green Drakeas a signature hatch — the local fly shops and angling history confirm it's reliable enough to plan a trip around.

Other rivers with Green Drake activity

These rivers carry the hatch but at varying intensity — check each river's page for the local peak window.

Get a notification when the Green Drake is on.

Bield: Fish ties USGS gauge readings to hatch triggers and alerts you when your home river hits the temperature window for the hatch you're waiting on.

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