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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.

Lateral view of a Onocosmoecus (Limnephilidae) (Great Late-Summer Sedge) Caddisfly Larva from the Yakima River in Washington
This specimen keys pretty easily to Onocosmoecus, and it closely resembles a specimen from Alaska which caddis expert Dave Ruiter recognized as this genus. As with that specimen, the only species in the genus documented in this area is Onocosmoecus unicolor, but Dave suggested for that specimen that there might be multiple not-yet-distinguished species under the unicolor umbrella and it would be best to stick with the genus-level ID. I'm doing the same for this one.
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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Updates from July 20, 2005

Updates from July 20, 2005

Photos by Troutnut from the Rush River in Wisconsin

The Rush River in Wisconsin
This flat on a slow, fertile spring creek held hundreds of trout.

From the Rush River at Little Whiskey in Wisconsin
The Rush River at Little Whiskey in Wisconsin
The Rush River at Little Whiskey in Wisconsin
The Rush River at Little Whiskey in Wisconsin

On-stream insect photos by Troutnut from the Rush River in Wisconsin

Spider webs are nature's hatch charts.  They often tell you what's been hatching recently.  This one reveals a Trico hatch.

From the Rush River in Wisconsin

Closeup insects by Bnewell from the Flathead River in Montana

Lepidoptera (Moth) Insect Adult from the Flathead River-lower in Montana
I have been told this is the only western aquatic moth, Petrophila confusalis, see here on milkweed blossoms.

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