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Lateral view of a Male Baetis (Baetidae) (Blue-Winged Olive) Mayfly Dun from Mystery Creek #43 in New York
Blue-winged Olives
Baetis

Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.

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.


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By Troutnut on July 14th, 2017
On a hike with my in-laws to the very popular and crowded Grove of the Patriarchs in Mt. Ranier National Park, we followed the trail along the Ohanopecosh River, which is apparently a popular stop for small trout with park visitors. It was hard to pass these pools without a fly rod in hand.

Photos by Troutnut from the Ohanopecosh River in Washington

The Ohanopecosh River in Washington
The Ohanopecosh River in Washington
The Ohanopecosh River in Washington
The Ohanopecosh River in Washington

Comments / replies

Jmd123
Jmd123's profile picture
Oscoda, MI

Posts: 2474
Jmd123 on Jul 26, 2017July 26th, 2017, 10:31 am EDT
That aquamarine water, and those PNW conifers for a backdrop...

Just beautiful, Jason. Thanks for posting!

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

Posts: 321
Partsman on Jul 27, 2017July 27th, 2017, 11:32 am EDT
Yes beautiful looking water Jason, several years ago when my brother and his wife lived in Denver we went hiking in many different areas around there home. Just beautiful looking streams and even a spot where after a long uphill hike we came to a waterfall and pool loaded with trout. There is so much to see in this beautiful country that I hope see some day. But in the mean time please keep the photos coming.
Mike.

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