When to use it
- Only in lakes or rivers with established Hexagenia activity.
- When the seasonal and daily stage is plausible.
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Reviewed representative comparison← Fly Box
Pattern family · guide 53
Hex Mayfly Patterns
A large-mayfly family for Hexagenia nymph, emerger, dun, and spinner imitations.
- Size range
- Large mayfly sizes; verify the local water
- Colors reviewed
- tan, brown, cream, pale yellow
- Imitates
- Hexagenia nymph, Hex emerger, Hex dun, Hex spinner
The current inventory specifies Hex nymph most often, but the broader hatch includes burrowing nymphs, emerging forms, large upright duns, and spent spinners. These forms must remain separate.
Technical illustration
Representative forms
Hex Mayfly Patterns stage map
A family-level comparison of Hex nymph, Hex emerger, Hex dun or spinner; no single drawing represents the whole family.
- View
- stage comparison map
- Color shown
- tan, brown, cream, and pale yellow
- Look for
- burrowing nymph; large emerger; upright dun; spent spinner
On the water
Narrow the family.
The river, depth, insects, and fish behavior still decide the final presentation. These are reviewed starting points—not a claim about what is happening today.
How to fish it
- Fish nymphs below before emergence; use emergers, large dries, or spinners only as the hatch progresses.
Mistakes to avoid
- Turning 'Hex nymph' into a dry-fly recommendation.
- Using one large pale dry for every stage.
Variant control
Small changes matter.
This stage comparison keeps materially different forms labeled. It is a family guide, not a claim that one fly represents every stage or local species.
Representative stage forms
The current inventory specifies Hex nymph most often, but the broader hatch includes burrowing nymphs, emerging forms, large upright duns, and spent spinners. These forms must remain separate.- Colors shown
- tan, brown, cream, pale yellow
- Weighting
- Weight and buoyancy depend on the life stage and exact named pattern.
Review trail
Sources, rights, and limits.
Pattern facts were reviewed on 2026-07-12. Every image has its own rights record; photographed hand-tied flies may still vary slightly in proportion.