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.

Looking across Island Lake toward the Titcomb Basin—one of the popular crown jewels of the Wind River Mountains

From Island Lake in Wyoming

Stream photos

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Female Sweltsa borealis (Boreal Sallfly) Stonefly Adult Female Sweltsa borealis (Boreal Sallfly) Stonefly Adult

Lateral view of a Female Sweltsa borealis (Chloroperlidae) (Boreal Sallfly) Stonefly Adult from Harris Creek in Washington

I was not fishing, but happened to be at an unrelated social event on a hill above this tiny creek (which I never even saw) when this stonefly flew by me. I assume it came from there. Some key characteristics are tricky to follow, but process of elimination ultimately led me to Sweltsa borealis. It is reassuringly similar to this specimen posted by Bob Newell years ago. It is also so strikingly similar to this nymph from the same river system that I'm comfortable identifying that nymph from this adult. I was especially pleased with the closeup photo of four mites parasitizing this one.

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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.

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Knuppenberg lake fly fishing

Report at a Glance

General Region	white pass wa
Specific Location	knuppenberg lake
Dates Fished	august 1 2014
Time of Day	10:00
Fish Caught	cutthroat trout
Conditions & Hatches	calm, sunny

Details and Discussion

Gcoder28
Packwood, WA

Posts: 1

Gcoder28 on Aug 1, 2014August 1st, 2014, 12:55 pm EDT

Today I went to Knuppenberg Lake with my Cortland 9' fly rod and a carpenter ant fly. I was wearing boots so I waded out far enough to cast where all of the surfacing fish were. I made long casts right in the fishes rising ring. I forgot to mention that I was using 3 foot leader also. Anyway, a couple of minutes later I caught a beautiful 15" cutthroat. I released it hoping the trout will grow bigger. I soon caught others. The water is so clear, you can see all the fish with in 20 feet of you. Awesome lake to fly fish and to throw in a worm and a bobber. Its right off HWY 12 before White pass. I highly recommend it.

Taxon

Site Editor
Plano, TX

Posts: 1311

Taxon on Aug 1, 2014August 1st, 2014, 1:59 pm EDT

Hi Gabe-

Welcome to the Troutnut forum. And, glad you outing to Knuppenburg Lake was productive. Incidentally, according to the latest WDFW stocking report, that lake is planted with Brown Trout.

Best regards,

Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com