Sulphur Dun- Finatics Fly Company

Sulphur Dun - Finatics Fly Company

The Sulphur Dun is your evening ticket to dry fly glory—especially during those late spring hatches when trout start looking up and get laser-locked on mayflies. This pattern imitates the adult stage of sulphur mayflies like Ephemerella invaria, making it a must-have in trout-heavy waters from the Smokies to the Catskills.

Tied with a pale yellow body, upright wings, and a perfectly matched tail, this fly rides high and fools picky risers when timing and presentation matter most. Fish it solo during a hatch or pair it with an emerger pattern when trout are mid-transition.

Why it’s worth a spot in your dry fly box:

• High-floating mayfly imitation for sulphur hatches

• Upright hackle keeps it visible and riding clean on the surface

• Pale yellow body mimics natural color of sulphur duns

• Tied on a barbed hook for secure hooksets and better fish retention

• Best used during evening hatches, clear water, or after rain when sulphurs pop

Sizes available as variants
Finatics Fly Company