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Lateral view of a Female Hexagenia limbata (Ephemeridae) (Hex) Mayfly Dun from the Namekagon River in Wisconsin
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.

27" brown trout, my largest ever. It was the sub-dominant fish in its pool. After this, I hooked the bigger one, but I couldn't land it.
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Baetisca columbiana (Armored Mayfly) Mayfly Nymph Pictures

This is also a very rare mayfly. This specimen was the first ever collected in western Montana. Only 5 specimens have been collected from this large river.

This mayfly was collected from the Flathead River-lower in Montana on July 5th, 2007 and added to Troutnut.com by Bnewell on June 26th, 2011.


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Baetisca columbiana (Armored Mayfly) Mayfly Nymph Pictures

Collection details
Location: Flathead River-lower, Montana
Date: July 5th, 2007
Added to site: June 26th, 2011
Author: Bnewell
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