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PMD Spinner fly pattern
Dry · #146 of 382

PMD Spinner

Imitates: Spent Pale Morning Dun spinner

Quick Reference

Best Sizes
#16-18
Best Season
June through August, evening spinner falls
Best Conditions
Spring creeks, tailwaters, slow flats with rising trout
Water Temp
55-68°F
Recommended Tippet
6X fluorocarbon

How to Rig It

Trail 18" behind a Parachute Adams or visible attractor.

How to Present It

Dead-drift through pods of risers in the last hour of light. PMD spinner falls are evening events — different from morning Trico falls.

Why It Works

PMD spinners fall en masse at dusk on Western rivers. Trout slip into slow inside seams and sip every spinner that drifts by — refusing duns once spinners are on the water.

History

The PMD (Ephemerella excrucians) is the most important Western mayfly summer hatch. The spinner stage is what fly anglers wait for all evening.

Pro Tip

Find the slowest inside seams of a riffle's tailout. That's where spinners collect — and where the biggest fish hold to eat them.

Frequently Asked Questions

When do PMD spinners fall?+

The last 60-90 minutes before dark from late June through August on most Western tailwaters.

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