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.

Waterfalls over smooth bedrock above Titcomb Lakes

From Titcomb Basin in Wyoming

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

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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.

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ID these two? (be cautious)

PaulRoberts

Colorado

Posts: 1776

PaulRoberts on Apr 27, 2012April 27th, 2012, 10:44 am EDT

Apologies for the pic quality. They were digitized from 35mm transparencies.

Entoman

Northern CA & ID

Posts: 2604

Entoman on Apr 27, 2012April 27th, 2012, 11:19 am EDT

Hi Paul,

I'm assuming these are from your NY days and small? Besides being an immature perlid & an immature heptageniid, I can't tell any more from the photos. What do you think they are?

"It's not that I find fishing so important, it's just that I find all other endeavors of Man equally unimportant... And not nearly as much fun!" Robert Traver, Anatomy of a Fisherman

PaulRoberts

Colorado

Posts: 1776

PaulRoberts on Apr 27, 2012April 27th, 2012, 1:49 pm EDT

Not biting, eh? I'd like to wait (or bait) on Creno and Konchu. However I'll spare everyone the one-sided glee (mine) in knowing that they are from China. I caught them there in a little mountain stream that also contained freshwater crabs that look just like saltwater crabs! Very weird.

What's cool is the similarity to the critters we know here, a clue as to the stunning age of these lineages, and the geologic forces that eventually separated them.

Entoman

Northern CA & ID

Posts: 2604

Entoman on Apr 27, 2012April 27th, 2012, 4:22 pm EDT

Ha! Very good... I figured you were up to something with those little spikes off the back of the stonefly legs.:)

"It's not that I find fishing so important, it's just that I find all other endeavors of Man equally unimportant... And not nearly as much fun!" Robert Traver, Anatomy of a Fisherman

Creno
Grants Pass, OR

Posts: 302

Creno on Apr 27, 2012April 27th, 2012, 7:17 pm EDT

I know nothin about stonies and mayflies - other than they are just another part of the fish food