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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

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.

Martinlf's profile picture
Palmyra PA

Posts: 3047
Martinlf on Oct 31, 2015October 31st, 2015, 2:38 pm EDT
Of late the fish haven't been cooperating for me as much as I'd like, but remembering the earlier season has provided some solace. One fish in particular has reminded me that one can have a very good day once in a while. So I'll share a story, and ask others what their most memorable fish was of 2015.

My most memorable fish wasn't my biggest one, though it was big for the stream and the fly. It was a gorgeous wild brown that took a size 26 trico. The long deep pool it came from hosts several trout its size and bigger, and they sip trikes unmolested most of the summer from what I can tell. I'd only caught one fish there previously, as the pool is hard to access and even tougher to fish. But one summer morning found me crawling on hands and knees into position to cast over the last few trico rises of the day. Other sections of the stream had proven relatively unproductive, so I had decided to give this pool a try. Spotting what I thought were a few sporadic sips as I approached, I tried to figure out a spot that would allow a cast. Trees were a problem, and these fish were spooky in the low gin clear water. But I found a gravel bar that might work and slowly, slowly made my way there, hoping not to put the fish down before the last spinner slid by. A fish in midstream had been up a time or two so my first two casts went over him. No dice, and his rises stopped. I thought I'd seen a dimple or two on the far bank and pushed a cast out a bit farther, probably at about the limit of what my 9' 3 weight LsI would do with me on the other end. The cast landed with enough slack for a good drift, and up came the fish. A very gentle lift, and immediately the weight of the fish told me it would be worth all the knee time. Miraculously, it didn't find a weed bed or snag in several runs, and was netted and released after a quick measurement. At eighteen and a half inches it was the biggest fish I've taken on a trico, and one I doubt will be bested anytime soon fishing that hatch. I've been back to the pool several times since, but have yet to get one of the fish to take again. But that's OK too.
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell
Wbranch's profile picture
York & Starlight PA

Posts: 2635
Wbranch on Oct 31, 2015October 31st, 2015, 3:55 pm EDT
That is a great fish on a #26 Trico Louis! 7X tippet I presume?

My most memorable fish of 2015 was the next one that rose to my fly.
Catskill fly fisher for fifty-five years.
Martinlf's profile picture
Palmyra PA

Posts: 3047
Martinlf on Oct 31, 2015October 31st, 2015, 7:09 pm EDT
Yes, Matt, 7X. It may well end up being the biggest trico caught fish of my lifetime. And I'm not sure how many more years I'll be crawling around on hands and knees to try to better it.
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell

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