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.

This view of the pipeline, the Atigun River, and an impressive sunset/rise was one of my first views of the North Slope as I came through Atigun Pass in the middle of the night.

From the Atigun River in Alaska

Stream photos

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Setvena wahkeena (Wahkeena Springfly) Stonefly Nymph Setvena wahkeena (Wahkeena Springfly) Stonefly Nymph

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.

7 Recently Added Photos

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.

Snipe fly

Serotonin has attached these 3 pictures to aid in identification. The message is below.

Serotonin
Posts: 6

Serotonin on Feb 22, 2007February 22nd, 2007, 7:51 am EST

Serotonin posted these pics without a message, so I'm posting a quote from another thread in which I believe he references these pics --Troutnut

Serotonin wrote:

First, I'd like to say that I've really enjoyed this site since its inception, and I like it even more w/the new format. There is an incredible wealth of knowledge here.

I have encountered the bug pictured above, in a New York stream. I don't recall it's Latin name, but if memory serves, in Schwiebert's "Nymphs" he refers to it as a Snipe Fly Larva. I have also heard it called a Water Sprite.

I don't have the Nymphs book in front of me, but here's some photos I took a few winters ago. When disturbed, the things would thrash wildly until able to gain a foothold on something. I am considering making highly articulated larvae to mimic this behavior. Appx 1.5 cm.

Troutnut