Pattern Library
Griffith's Gnat fly pattern
Dry · #16 of 129

Griffith's Gnat

Imitates: Cluster of midges mating on the surface

Quick Reference

Best Sizes
#18-22
Best Season
Year-round (great in winter)
Best Conditions
Slow flat water during midge hatches
Water Temp
Any — even sub-40°F winter days
Recommended Tippet
6X

How to Rig It

Single dry. Add a tiny midge pupa dropper 6" below for finicky risers.

How to Present It

Dead-drift over visible rising fish. Look for noses, not splashes.

Why It Works

A grizzly hackle palmered over peacock herl perfectly mimics the dark, fuzzy ball of midges clustered on the water during a mating swarm.

History

Tied by George Griffith — co-founder of Trout Unlimited — on the Au Sable River in Michigan.

Pro Tip

If you can see #20 midges on the water but no rising fish, look closer. Trout are sipping so subtly the rises look like raindrops.

Frequently Asked Questions

When should I fish a Griffith's Gnat?+

Anytime trout are sipping midges, especially winter and slow tailwater pools where small clusters drift downstream.

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