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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 Pycnopsyche guttifera (Limnephilidae) (Great Autumn Brown Sedge) Caddisfly Larva from the Yakima River in Washington
This specimen appears to be of the same species as this one collected in the same spot two months earlier. The identification of both is tentative. This one suffered some physical damage before being photographed, too, so the colors aren't totally natural. I was mostly photographing it to test out some new camera setting idea, which worked really well for a couple of closeups.
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 par Mayfly Spinner Pictures

This spinner came from one of those huge swarms that make one just stop fishing and admire the spectacle. Not bad for a little-known species.

In the same swarm I collected a female and another male.

Male Cinygmula par (Heptageniidae) Mayfly Spinner from Mystery Creek #249 in Washington
Dorsal view of a Male Cinygmula par (Heptageniidae) Mayfly Spinner from Mystery Creek #249 in Washington
Unfortunately these spinners were really fragile and it was hard to get one completely intact. This one's missing some legs.

Lateral view of a Male Cinygmula par (Heptageniidae) Mayfly Spinner from Mystery Creek #249 in Washington
Male Cinygmula par (Heptageniidae) Mayfly Spinner from Mystery Creek #249 in Washington
Ventral view of a Male Cinygmula par (Heptageniidae) Mayfly Spinner from Mystery Creek #249 in Washington
Male Cinygmula par (Heptageniidae) Mayfly Spinner from Mystery Creek #249 in Washington
Male Cinygmula par (Heptageniidae) Mayfly Spinner from Mystery Creek #249 in Washington
Ruler view of a Male Cinygmula par (Heptageniidae) Mayfly Spinner from Mystery Creek #249 in Washington The smallest ruler marks are 1 mm.
Male Cinygmula par (Heptageniidae) Mayfly Spinner from Mystery Creek #249 in Washington

This mayfly was collected from Mystery Creek #249 in Washington on July 4th, 2020 and added to Troutnut.com by Troutnut on July 12th, 2020.


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Male Cinygmula par Mayfly Spinner Pictures

Collection details
Location: Mystery Creek #249, Washington
Date: July 4th, 2020
Added to site: July 12th, 2020
Author: Troutnut
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