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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.

Ventral view of a Hydropsyche (Hydropsychidae) (Spotted Sedge) Caddisfly Larva from the Yakima River in Washington
With a bit of help from the microscope, this specimen keys clearly and unsurprisingly to Hydropsyche.
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.

JpMcKenzie has attached these 6 pictures to aid in identification. The message is below.
JpMcKenzie
JpMcKenzie's profile picture
Canada Québec

Posts: 2
JpMcKenzie on Dec 16, 2017December 16th, 2017, 3:05 am EST
My job is: A hundred days on the side of the river, from the snow melt in early june, to the first snowfall early september!I've found and brought back a couple mayflies(117 of them) from the Mckenzie River in Labrador.

This to explain that I have barely no clue of the water temperature or the date I have caught this specimen. (Note that the two front legs were ''lost'' during manipulation after some pictures)

If you need zoom or other angle let me know!

Thanks for your help guys!
Jean-Philip, Mckenzie river Fly Fishing Lodge guide, Labrador.
Adventure & Entomology passionate!
Taxon
Taxon's profile picture
Site Editor
Plano, TX

Posts: 1311
Taxon on Jan 28, 2018January 28th, 2018, 4:38 pm EST
Hi Jean-Philip-

I believe this female imago to be of genus Leucrocuta.
Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com

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