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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.
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Troutnut.com User Jodea (Jeremiah O'Dea )

Troutnut.com User Jodea (Jeremiah O'Dea )

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Jeremiah O'Dea
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Galway city Ireland
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Brookyman June 9th, 9:15 pm reply quote

Posts: 797 Ok guys here is the skinny,,

The Jodea is EPIC. I got one a month ago and I will tell all you that if you like having a portable carrier that you can not lose this is it. Handling mayflies is tricky when you are seriously collecting for science and sometimes people may like small independant containers. But if you fly fish and collect a few every trip to post here, the Jodea is exactly what you need. I told Jeremiah I was going to give him excellent input towards considering another model of the same unit that is geared to the serious collector guy like me.

I even have a Canadian store chain that has looked at it with interest.

The black flies have forced me to just collecting so far. But in a few weeks I will be up north and fishing YEEeeee. I am going to film a HD video on this product to show how we in north America would use it. It is so well made you would not believe me until you see it. www.thejodea.com

It is truly is EPIC.
Mack.

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