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.

Lone tree on a rock in the middle of Big Lake. Fittingly, Big Lake is the largest of several short wide spots in the upper Brule River.

From the Bois Brule River in Wisconsin

Stream photos

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Psychodidae True Fly Larva Psychodidae True Fly Larva

Lateral view of a Psychodidae True Fly Larva from Mystery Creek #308 in Washington

This wild-looking little thing completely puzzled me. At first I was thinking beetle or month larva, until I got a look at the pictures on the computer screen. I made a couple of incorrect guesses before entomologist Greg Courtney pointed me in the right direction with Psychodidae. He suggested a possible genus of Thornburghiella, but could not rule out some other members of the tribe Pericomini.

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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.

From tying to identifying

Jman has attached this picture to aid in identification. The message is below.

Jman
Mid Missouri

Posts: 4

Jman on Jun 6, 2008June 6th, 2008, 5:31 am EDT

Greetings, I have a question for someone I found this one on my screen door last night and I have searched to try and come up with a name to put with it. I have tied flies for a few years but I've just duplicated patterns found in books or fly shops. I've never tried to identify the insects I have been tying, until now. By the way this mayfly is from Mid Missouri.

Wiflyfisher

Wisconsin

Posts: 622

Wiflyfisher on Jun 6, 2008June 6th, 2008, 6:55 am EDT

My guess is an Epeorus spinner. It is somewhat difficult to tell because some of the essential keys are missing. :-)

(Keys - I mean like number of tails.)

John S.
https://WiFlyFisher.com

Jman
Mid Missouri

Posts: 4

Jman on Jun 6, 2008June 6th, 2008, 8:25 am EDT

I believe there were 2 tails - right before my 3 year old needed to hold him...