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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.
Troutnut is a project started in 2003 by salmonid ecologist Jason "Troutnut" Neuswanger to help anglers and fly tyers unabashedly embrace the entomological side of the sport. Learn more about Troutnut or support the project for an enhanced experience here.

Updates from August 23, 2006

Updates from August 23, 2006

Closeup insects by Troutnut from Enfield Creek in New York

Lateral view of a Female Procloeon (Baetidae) (Tiny Sulphur Dun) Mayfly Dun from Enfield Creek in New York
This dun of a fairly large Baetidae species was one of only a couple I saw all evening.
Lateral view of a Female Perlesta (Perlidae) (Golden Stone) Stonefly Adult from Enfield Creek in New York
This stonefly species was the most common insect over the small stream I fished one August afternoon; I saw dozens in their egg-laying flights.

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