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Bield:Fish
Hatch profile

Midge

Chironomidae spp.
MidgeMidday52-week run
Water temperature trigger
40°50°60°70°80°
Range: 3260°F · Peak: 40°F
Fly patterns
  • Griffith's Gnat #20-24
  • Zebra Midge #20-22
  • WD-40 #20
  • Disco Midge #22
Also known as

Chironomids · Snowflies

Year-round food source — the only consistent option on tailwaters in winter. On cold sunny days look for noses sipping clusters in slow water.

Get a notification when the Midge 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.