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.

View from atop the permafrost slump

From the Selawik River in Alaska

Stream photos

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Amphizoa Beetle Larva Amphizoa Beetle Larva

Dorsal view of a Amphizoa (Amphizoidae) Beetle Larva from Sears Creek in Washington

This is the first of it's family I've seen, collected from a tiny, fishless stream in the Cascades. The three species of this genus all live in the Northwest and are predators that primarily eat stonefly nymphs Merritt R.W., Cummins, K.W., and Berg, M.B. (2019).

5 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 April 30, 2007

Closeup insects by Troutnut and Bnewell from Miscellaneous New York and the Jocko River in New York and Montana

Male Agnetina capitata (Golden Stone) Stonefly Adult

9 Pictures

Lateral view of a Male Agnetina capitata (Perlidae) (Golden Stone) Stonefly Adult from Aquarium in New York

This stonefly emerged in my aquarium, and unfortunately I severely damaged its wings just trying to catch it. It's still an interesting specimen, especially since I was able to also photograph the nymphal shuck it emerged from. I was surprised by just how light it was shortly after emerging. I photographed it a couple days later when it had darkened considerably; it was a pale, almost pastel yellow at first.

Collected April 30, 2007 from Aquarium in New York

Added by Troutnut on May 3, 2007

Collected April 30, 2007 from Aquarium in New York and added by Troutnut on May 3, 2007

Male Pteronarcys californica (Giant Salmonfly) Stonefly Adult

1 Picture