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Hex (Hexagenia)Dry Flyintermediate

Great Lakes

Hex (Hexagenia)

Flybox sourcing profile

No TWG price or checkout is active. Use this page to validate the fly, then source it through the mapped tier or trusted fly shops.

Available Sizes#4 - #8
Color Variations
Yellow/CreamTan

Pattern Ledger

Source Hex (Hexagenia)

Want help finding this exact pattern or a tied-to-order equivalent? Join the sourcing ledger and we will prioritize demand by water, species, and pattern.

Sourcing Ledger

Where to source this pattern

TWG checkout is closed. These are current sourcing leads, scored by mapped tier, region, species, fly type, and named-pattern evidence. Confirm availability directly with the tier or shop.

Regional shopStrong match

Schultz Outfitters

Matched on Great Lakes, dry flies, trout. Michigan and Great Lakes shop lead for steelhead, trout, and smallmouth patterns.

Great Lakesdry fliestrout
Visit source
Broad sourceStrong match

Fly Fish Food

Matched on dry flies, trout, mayfly. Strong technical tying and trout catalog coverage, especially nymphs, dries, and stillwater flies.

dry fliestroutmayfly
Visit source
Regional shopStrong match

Dette Flies

Matched on dry flies, trout, mayfly. Catskill lineage fly shop with deep dry-fly, wet-fly, and Northeast trout relevance.

dry fliestroutmayfly
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Regional shopStrong match

AZ Fly Shop

Matched on dry flies, trout, trout. Arizona and Southwest shop lead for desert trout, bass, canal carp, and warmwater patterns.

dry fliestrout
Visit source
Regional shopStrong match

Davidson River Outfitters

Matched on dry flies, trout, trout. Southern Appalachian trout shop lead tied to the Davidson River and regional freestones.

dry fliestrout
Visit source

Once a year, in June, the largest mayflies in North America emerge from Michigan rivers at dusk, and every brown trout over twenty inches loses its mind. You fish the Hex hatch in the dark, by sound, casting toward splashes you can barely see. It is the closest fly fishing gets to a horror movie, and it is absolutely magnificent.

Quick Facts

TypeDry Fly
Difficultyintermediate
SeasonsSummer
Target SpeciesBrown Trout
Sizes#4 - #8
Best LocationsAu Sable River, MI; Pere Marquette River, MI; Manistee River, MI

Where to Fish It

Au Sable River

MI · Freestone River

Pere Marquette River

MI · Freestone River

Manistee River

MI · Freestone River

Map unavailable. Locations for Hex (Hexagenia): Au Sable River, MI; Pere Marquette River, MI; Manistee River, MI

Related Reading

region guide

Great Lakes Fly Fishing: From Hex Hatches to Musky

The Great Lakes region offers a staggering diversity of fly fishing — from legendary Hex hatches on northern Michigan rivers to chrome steelhead on Lake Erie tributaries and trophy muskellunge in the bays. This is the complete guide to fishing the freshwater coast.

seasonal playbook

The Summer Guide: Long Days and Willing Fish

Summer is fly fishing's season of abundance. Sixteen-hour days, prolific hatches, aggressive fish, and the full spectrum from mountain trout to saltwater flats. This is your playbook for making the most of the warmest, longest, most generous months of the fishing year.

hatch guide

The Complete Guide to Mayfly Hatches

Mayflies are the foundation of trout-stream entomology. This guide covers every major hatch — BWOs, PMDs, Green Drakes, Sulphurs, Tricos, and Hendricksons — with the biology, timing, and fly selections you need to fish them effectively across the country.

hatch guide

The Hex Hatch: After Dark on the Great Lakes

The Hex hatch is the defining event of Great Lakes fly fishing — a massive emergence of North America's largest mayfly that happens after dark and brings the biggest brown trout of the year to the surface. This is how to prepare for, find, and fish the most anticipated hatch in the Midwest.

technique

Water Temperature: The Master Variable

Water temperature controls everything. Metabolism, feeding intensity, insect emergence, dissolved oxygen, where fish hold, and whether they'll eat your fly. Understanding thermal dynamics across freshwater and saltwater systems is the single most reliable way to predict fishing quality before you even leave the truck.

technique

After Dark: The Night Fishing Guide

The largest brown trout in any river feeds almost exclusively at night. The biggest smallmouth in your favorite river moves into the shallows after dark. And the redfish on the marsh flat feed through the night on every tide. Night fishing is where trophy hunters go when they get serious — here's how to join them.

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