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.

Inlet of Upper Titcomb Lake

From Titcomb Basin in Wyoming

Stream photos

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Limnephilus (Summer Flier Sedge) Caddisfly Larva Limnephilus (Summer Flier Sedge) Caddisfly Larva

Case view of a Limnephilus (Limnephilidae) (Summer Flier Sedge) Caddisfly Larva from the Yakima River in Washington

This seems to be a young larva of Limnephilus. Although not clear in the picture, several ventral abdominal segments have chloride epithelia.

7 Recently Added Photos

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 September 20, 2011

Closeup insects by Bnewell from the Touchet River in Washington

Male Cinygmula ramaleyi (Small Western Gordon Quill) Mayfly Spinner

4 Pictures

Male Cinygmula ramaleyi (Heptageniidae) (Small Western Gordon Quill) Mayfly Spinner from the Touchet River in Washington

Adults were collected from the North Fork of the Touchet River at Touchet Corral, 21 Sept. One photo is the swarm of males over the stream about 3 PM, air temp about 66 degree.

Collected September 20, 2011 from the Touchet River in Washington

Added by Bnewell on September 23, 2011

Collected September 20, 2011 from the Touchet River in Washington and added by Bnewell on September 23, 2011

Comments / replies

Sayfu
Posts: 560

Sayfu on Sep 23, 2011September 23rd, 2011, 10:34 am EDT

My God! Does that Touchet River have every known aquatic insect known to fly anglers?

Entoman

Northern CA & ID

Posts: 2604

Entoman on Sep 23, 2011September 23rd, 2011, 12:32 pm EDT

Hi Sayfu,

Most small freestones have surprising biodiversity as compared to larger rivers, tail waters, and especially spring creeks. Very few species (if any) necessarily constitute what we would refer to as fishable hatches, let alone be the cause for selectivity.

Regards,

Kurt

"It's not that I find fishing so important, it's just that I find all other endeavors of Man equally unimportant... And not nearly as much fun!" Robert Traver, Anatomy of a Fisherman