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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.

Dorsal view of a Glossosoma (Glossosomatidae) (Little Brown Short-horned Sedge) Caddisfly Larva from the Yakima River in Washington
I caught this tiny larva without a case, but it seems to key pretty clearly to to Glossosomatidae. From there, the lack of sclerites on the mesonotum points to either Glossosoma or Anagapetus. Although it's difficult to see in a 2D image from the microscope, it's pretty clear in the live 3D view that the pronotum is only excised about 1/3 of its length to accommodate the forecoxa, not 2/3, which points to Glossosoma at Couplet 5 of the Key to Genera of Glossosomatidae Larvae.
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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Agnetina capitata (Golden Stone) Stonefly Nymph Pictures

Lateral view of a Agnetina capitata (Perlidae) (Golden Stone) Stonefly Nymph from Fall Creek in New York
Agnetina capitata (Perlidae) (Golden Stone) Stonefly Nymph from Fall Creek in New York
Agnetina capitata (Perlidae) (Golden Stone) Stonefly Nymph from Fall Creek in New York
Agnetina capitata (Perlidae) (Golden Stone) Stonefly Nymph from Fall Creek in New York
Agnetina capitata (Perlidae) (Golden Stone) Stonefly Nymph from Fall Creek in New York
Ventral view of a Agnetina capitata (Perlidae) (Golden Stone) Stonefly Nymph from Fall Creek in New York
Dorsal view of a Agnetina capitata (Perlidae) (Golden Stone) Stonefly Nymph from Fall Creek in New York
Ruler view of a Agnetina capitata (Perlidae) (Golden Stone) Stonefly Nymph from Fall Creek in New York The smallest ruler marks are 1 mm.
Agnetina capitata (Perlidae) (Golden Stone) Stonefly Nymph from Fall Creek in New York
Agnetina capitata (Perlidae) (Golden Stone) Stonefly Nymph from Fall Creek in New York

This stonefly was collected from Fall Creek in New York on March 30th, 2007 and added to Troutnut.com by Troutnut on April 2nd, 2007.

Discussions of this Nymph

Perfect Candidate for a Woven Fly
4 replies
Posted by Flybyknight on Nov 25, 2007
Last reply on Nov 28, 2007 by Martinlf
But which weave?
Both the "Crisscross" and the "Mossback" (according to pics in Leeson & Schollmeyer) look to me anyway as being good candidates, but before I climb that mountain, was wondering if anyone here has a strong recommendation.

This reminds me of the time I met this guy who was good at weaving flies, so I tried to butter him up to give me a few. I did that by bringing him to a private spot where I had access. I put him on fish. He caught fish. He never said thanks, and I never got a fly. Oh well, hope springs eternal.
signed
friend of the friendless,
champion of the underdog.
Cheers,
Dick
Agnetina
2 replies
Posted by GONZO on Apr 3, 2007
Last reply on May 8, 2007 by Troutnut
From the anal gills and the markings, this appears to be Agnetina--probably capitata.

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Agnetina capitata (Golden Stone) Stonefly Nymph Pictures

Collection details
Location: Fall Creek, New York
Date: March 30th, 2007
Added to site: April 2nd, 2007
Author: Troutnut
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