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Hex Mayflies
Hexagenia limbata

The famous nocturnal Hex hatch of the Midwest (and a few other lucky locations) stirs to the surface mythically large Brown Trout that only touch streamers for the rest of the year.

Male Stenonema vicarium (March Brown) Mayfly Dun Pictures

This is the only Heptageniid mayfly I saw hatch on May 24, 2004, and luckily it floated right by me.

Edit: Gonzo confirmed most likely vicarium 06.21.12

This mayfly was collected from the Namekagon River in Wisconsin on May 24th, 2004 and added to Troutnut.com by Troutnut on January 25th, 2006.

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