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Artistic view of a Male Pteronarcys californica (Pteronarcyidae) (Giant Salmonfly) Stonefly Adult from the Gallatin River in Montana
Salmonflies
Pteronarcys californica

The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.

Dorsal view of a Setvena wahkeena (Perlodidae) (Wahkeena Springfly) Stonefly Nymph from Mystery Creek #199 in Washington
As far as I can tell, this species has only previously been reported from one site in Oregon along the Columbia gorge. However, the key characteristics are fairly unmistakable in all except for one minor detail:
— 4 small yellow spots on frons visible in photos
— Narrow occipital spinule row curves forward (but doesn’t quite meet on stem of ecdysial suture, as it's supposed to in this species)
— Short spinules on anterior margin of front legs
— Short rposterior row of blunt spinules on abdominal tergae, rather than elongated spinules dorsally
I caught several of these mature nymphs in the fishless, tiny headwaters of a creek high in the Wenatchee Mountains.
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.

Wbranch
Wbranch's profile picture
York & Starlight PA

Posts: 2635
Wbranch on Dec 23, 2017December 23rd, 2017, 3:02 am EST
Merry Christmas to all my Troutnut friends and acquaintances! I am looking forward to a wonderful year in 2018 and many exciting fishing trips. I'm wishing all of you to have a wonderful Christmas with your immediate and extended families.

Catskill fly fisher for fifty-five years.
Troutnut
Troutnut's profile picture
Administrator
Bellevue, WA

Posts: 2758
Troutnut on Dec 24, 2017December 24th, 2017, 9:19 am EST
You too!
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist
CaseyP
CaseyP's profile picture
Arlington, VA/ Mercersburg, PA

Posts: 653
CaseyP on Dec 24, 2017December 24th, 2017, 12:42 pm EST
MERRY CHRISTMAS EVERYONE!
and i hope my Hanukkah friends had a lovely celebration!
"You can observe a lot by watching." Yogi Berra
Jmd123
Jmd123's profile picture
Oscoda, MI

Posts: 2474
Jmd123 on Jan 2, 2018January 2nd, 2018, 6:52 am EST
HAPPY NEW YEAR to all of my fellow Troutnuts!! Here's wishing you all tight lines and heavy hatches in the season to come. Also, enough warmth for us winter sportspeople to get out and enjoy ourselves! Took the skis and the ice fishing gear all the way down to Troy and back (easy access to trails and my hometown lake is only 3 miles from my Mom's house) and it was just too freakin' cold to use them at all...Here's hoping that last year's heavy precipitation will keep our springs high and running cold (maybe warm right now!) and give us a good trout season this year.

"God bless us, every one!" - Tiny Tim

...or was that, "Tip toe, through the tulips..."?

Jonathon
No matter how big the one you just caught is, there's always a bigger one out there somewhere...

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