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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.

Dorsal view of a Limnephilidae (Giant Sedges) Caddisfly Larva from the Yakima River in Washington
This specimen resembled several others of around the same size and perhaps the same species, which were pretty common in my February sample from the upper Yakima. Unfortunately, I misplaced the specimen before I could get it under a microscope for a definitive ID.
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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Male Cinygmula ramaleyi (Small Western Gordon Quill) Mayfly Spinner Pictures

This one was preserved in ethanol and partially dissected, so it doesn't have its natural wild coloration, and it's missing some appendages. I'm posting it for identification purposes.

Low-quality shot of the whole ventral view before I got the camera working properly.

Ventral view of a Male Cinygmula ramaleyi (Heptageniidae) (Small Western Gordon Quill) Mayfly Spinner from Mystery Creek #186 in Alaska
Claspers were removed for a clearer view of the genitalia, a key identifying characteristic in this genus.

Male Cinygmula ramaleyi (Heptageniidae) (Small Western Gordon Quill) Mayfly Spinner from Mystery Creek #186 in Alaska
Male Cinygmula ramaleyi (Heptageniidae) (Small Western Gordon Quill) Mayfly Spinner from Mystery Creek #186 in Alaska
Dorsal view of a Male Cinygmula ramaleyi (Heptageniidae) (Small Western Gordon Quill) Mayfly Spinner from Mystery Creek #186 in Alaska

This mayfly was collected from Mystery Creek #186 in Alaska on September 4th, 2015 and added to Troutnut.com by Troutnut on October 27th, 2015.


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Male Cinygmula ramaleyi (Small Western Gordon Quill) Mayfly Spinner Pictures

Collection details
Location: Mystery Creek #186, Alaska
Date: September 4th, 2015
Added to site: October 27th, 2015
Author: Troutnut
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