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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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Female Leptophlebia cupida (Black Quill) Mayfly Spinner Pictures

This large female Leptophlebia spinner emerged from a nymph I was holding in my room one night. I didn't have time to photograph her and she molted into a spinner before I was home from work in the evening. So here she is as a spinner. I wish I had more photos at more angles, but she flew off and I couldn't find her.

This mayfly was collected from unknown in Wisconsin on May 18th, 2004 and added to Troutnut.com by Troutnut on January 25th, 2006.


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Female Leptophlebia cupida (Black Quill) Mayfly Spinner Pictures

Collection details
Location: unknown, Wisconsin
Date: May 18th, 2004
Added to site: January 25th, 2006
Author: Troutnut
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