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.

Stream photos

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Tricorythodes (Trico) Mayfly Nymph Tricorythodes (Trico) Mayfly Nymph

Dorsal view of a Tricorythodes (Leptohyphidae) (Trico) Mayfly Nymph from Mystery Creek #308 in Washington

9 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.

Updates from June 30, 2017

Photos by Troutnut from the South Fork Stillaguamish River in Washington

Closeup insects by Troutnut from the South Fork Stillaguamish River in Washington

Female Ephemerellidae (Hendricksons, Sulphurs, PMDs, BWOs) Mayfly Dun

6 Pictures

This one was collected in association with a male spinner, but they appear to be different families.

Collected June 30, 2017 from the South Fork Stillaguamish River in Washington

Added by Troutnut on July 2, 2017

Collected June 30, 2017 from the South Fork Stillaguamish River in Washington and added by Troutnut on July 2, 2017

Male Cinygmula (Dark Red Quill) Mayfly Spinner

11 Pictures

Lateral view of a Male Cinygmula (Heptageniidae) (Dark Red Quill) Mayfly Spinner from the South Fork Stillaguamish River in Washington

I'm unsure of the ID on this one; keys put it closest to Cinygmula reticulata, but I'm very doubtful of the species and not positive on the genus. Epeorus is another possibility, but I don't know which species it would be.

This one was collected in association with a female dun probably of a different family.

Collected June 30, 2017 from the South Fork Stillaguamish River in Washington

Added by Troutnut on July 2, 2017

Collected June 30, 2017 from the South Fork Stillaguamish River in Washington and added by Troutnut on July 2, 2017

Comments / replies

Martinlf

Moderator
Palmyra PA

Posts: 3047

Martinlf on Jul 2, 2017July 2nd, 2017, 12:25 pm EDT

Beautiful photos, Jason.

"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell

Jmd123

Oscoda, MI

Posts: 2474

Jmd123 on Jul 2, 2017July 2nd, 2017, 12:31 pm EDT

Gorgeous! Reminds me of Oregon, including the heavily-spotted rainbows in the McKenzie River. Looks like some nice bigleaf maples in the background on the last photo. Gotta get back to that part of the world again sometime...

Jonathon

No matter how big the one you just caught is, there's always a bigger one out there somewhere...