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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 Zapada cinctipes (Nemouridae) (Tiny Winter Black) Stonefly Nymph from the Yakima River in Washington
Nymphs of this species were fairly common in late-winter kick net samples from the upper Yakima River. Although I could not find a key to species of Zapada nymphs, a revision of the Nemouridae family by Baumann (1975) includes the following helpful sentence: "2 cervical gills on each side of midline, 1 arising inside and 1 outside of lateral cervical sclerites, usually single and elongate, sometimes constricted but with 3 or 4 branches arising beyond gill base in Zapada cinctipes." This specimen clearly has the branches and is within the range of that species.
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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A couple hours on the Middle Fork Snoqualmie

A couple hours on the Middle Fork Snoqualmie

By Troutnut on August 3rd, 2019
I talked my wife into a quick trip to one of our home rivers on August 4th. It was the lowest I've ever fished it (around 235 CFS downstream at the gage, far less up by us), and that made for some easy wading. Some of the pools were practically still-water fishing. However, we hit a particularly good one at dusk where we caught dozens of fish without even having to move our feet. The big ones of the night were 7-8", but it's still fun.

Photos by Troutnut from the Middle Fork Snoqualmie River in Washington

The Middle Fork Snoqualmie River in Washington

Closeup insects by Troutnut from the Middle Fork Snoqualmie River in Washington

Lateral view of a Male Paraleptophlebia sculleni (Leptophlebiidae) Mayfly Spinner from the Middle Fork Snoqualmie River in Washington
For a species not yet reported in my state, I've been surprised to find these in two different locations lately. I was tempted to think they're the more common Paraleptophlebia debilis, but the characteristic big dorsal bump on the claspers just isn't present.

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