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.

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Pycnopsyche guttifera (Great Autumn Brown Sedge) Caddisfly Larva Pycnopsyche guttifera (Great Autumn Brown Sedge) Caddisfly Larva

Dorsal view of a Pycnopsyche guttifera (Limnephilidae) (Great Autumn Brown Sedge) Caddisfly Larva from the Yakima River in Washington

This specimen appears to be of the same species as this one collected in the same spot two months earlier. The identification of both is tentative. This one suffered some physical damage before being photographed, too, so the colors aren't totally natural. I was mostly photographing it to test out some new camera setting idea, which worked really well for a couple of closeups.

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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.

Aeshna naiad

Millcreek has attached these 2 pictures to aid in identification. The message is below.

Millcreek
Healdsburg, CA

Posts: 344

Millcreek on Nov 21, 2017November 21st, 2017, 2:05 pm EST

These are usually found in slow to stagnant areas in the Russian River. They are approximately 16-20 mm long and are found in the river from June through August.

Jonathan - Are these the dragonfly naiads you saw? They vary quite a bit in coloration.

"If we knew what it was we were doing, it would not be called research, would it?"
-Albert Einstein

Jmd123

Oscoda, MI

Posts: 2474

Jmd123 on Nov 28, 2017November 28th, 2017, 9:39 am EST

The shape is certainly right! I read your other post and I will definitely have to send you photos next season. They can change when they molt, huh? As far as spectacular color changes go, I saw an octopus go from solid slate grey to spotted all over in an instant, down in Key West when I was a kid. Of course, they have micromuscles controlling the opening and closing of pores to pigment glands, all driven by probably the most developed brain in the invertebrate world! Much as we all love insects, they're just not THAT cool...

Jonathon

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