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.

A small spring creek in Wisconsin. A little brook trout stream tumbles over boulders

Stream photos

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Neoleptophlebia Mayfly Nymph Neoleptophlebia Mayfly Nymph

Dorsal view of a Neoleptophlebia (Leptophlebiidae) Mayfly Nymph from the Yakima River in Washington

Some characteristics from the microscope images for the tentative species id: The postero-lateral projections are found only on segment 9, not segment 8. Based on the key in Jacobus et al. (2014), it appears to key to Neoleptophlebia adoptiva or Neoleptophlebia heteronea, same as this specimen with pretty different abdominal markings. However, distinguishing between those calls for comparing the lengths of the second and third segment of the labial palp, and this one (like the other one) only seems to have two segments. So I'm stuck on them both. It's likely that the fact that they're immature nymphs stymies identification in some important way.

10 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.

My first midge sequence attempt

Falsifly has attached these 7 pictures. The message is below.

Wings a flapping to escape the last trappings of the shuck.

Finally on top, but the way the trout were feeding on these little critters it's still a precarious situation.

Falsifly

Hayward, WI.

Posts: 660

Falsifly on Apr 27, 2011April 27th, 2011, 7:45 pm EDT

I found some quite water and attempted a sequence of midge photos from pupa to adult. Although the water surface was flat the current speed still challenged my ability to frame, focus and shoot close-ups.

Falsifly
When asked what I just caught that monster on I showed him. He put on his magnifiers and said, "I can't believe they can see that."

Troutnut

Administrator
Bellevue, WA

Posts: 2758

Troutnut on Apr 28, 2011April 28th, 2011, 12:28 am EDT

Very cool! Makes for a good profile picture, too.

Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist

Oldredbarn

Novi, MI

Posts: 2600

Oldredbarn on Apr 28, 2011April 28th, 2011, 9:52 am EDT

Allan,

Very nice! I remember once, when I was taking a nephew fishing back in the 90's sometime, he and I had stopped for a snack on the banks of the North Branch of the Au Sable. We had a dragonfly nymph crawl up on the log between us and proceeded to emerge...It would of been nice if I would of had something to catch the action with. He couldn't believe what he was watching...

Thanks!

Spence

"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

Shawnny3
Moderator
Pleasant Gap, PA

Posts: 1197

Shawnny3 on Apr 28, 2011April 28th, 2011, 7:03 pm EDT

Very nice pics, Falsifly. Thank you for sharing.

-Shawn

Jewelry-Quality Artistic Salmon Flies, by Shawn Davis
www.davisflydesigns.com

Jesse