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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.

Lateral view of a Clostoeca disjuncta (Limnephilidae) (Northern Caddisfly) Caddisfly Larva from the Yakima River in Washington
This one was surprisingly straightforward to identify. The lack of a sclerite at the base of the lateral hump narrows the field quite a bit, and the other options followed fairly obvious characteristics to Clostoeca, which only has one species, Clostoeca disjuncta.
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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Report at a Glance

General RegionWest Yellowstone, MT
Dates Fished9/13 - 9/19/2014
Time of Dayall day
Fish CaughtRainbows & brown trout
Conditions & Hatcheswarm, sunny most of the time... BWOs, Callibaetis spinners, White Miller caddis, fly ants, bright green-bodied mayfly, small dark brown caddis

Details and Discussion

Wiflyfisher's profile picture

Posts: 622
Wiflyfisher on Sep 28, 2014September 28th, 2014, 8:26 am EDT
Sorry, to lazy to retype it.. full story is here on my blog...


Oldredbarn's profile picture
Novi, MI

Posts: 2600
Oldredbarn on Sep 28, 2014September 28th, 2014, 1:20 pm EDT

Wonderful! Glad to see you guys had such a great time...Hard not to out there, eh?!

Was that thunder in that vid on the Firehole?

I really want to visit sometime closer to Fall myself. I always seem to end up there at the end of July-August...Latest being just before Labor Day in 2004.

Got to love Jim's breakfast! This last time out we fished one night in that run below the dam and just above Jim's place.

What's not to love about the Madison?! It is a great place to fish.

Thanks for the report.

"Even when my best efforts fail it's a satisfying challenge, and that, after all, is the essence of fly fishing." -Chauncy Lively

"Envy not the man who lives beside the river, but the man the river flows through." Joseph T Heywood

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