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

Featured on the forum

Re: Trico emergers
In the Mayfly Genus Tricorythodes by Bwoklink (Martinlf replied)

Re: Trico Tips
In the Mayfly Genus Tricorythodes by Martinlf

Re: UV spectrum and trout
In General Discussion by Martinlf

Re: closing the gender gap in flyfishing
In General Discussion by Konchu (Smallflyguy replied)

Re: Fishing Kupa River, Slovenia
In Fishing Reports by Slocum (Fish1 replied)

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.

Agnetina

Agnetina capitata (Golden Stone) Stonefly Nymph

10 Pictures

Dorsal view of a Agnetina capitata (Perlidae) (Golden Stone) Stonefly Nymph from Fall Creek in New York

Collected March 29, 2007 from Fall Creek in New York

Added by Troutnut on April 2, 2007

Collected March 29, 2007 from Fall Creek in New York and added by Troutnut on April 2, 2007

GONZO
Site Editor
"Bear Swamp," PA

Posts: 1681

GONZO on Apr 3, 2007April 3rd, 2007, 4:53 am EDT

From the anal gills and the markings, this appears to be Agnetina--probably capitata.

Boyle
Cooperstown, NY

Posts: 2

Boyle on May 7, 2007May 7th, 2007, 2:25 pm EDT

In case you didn't know, there is an excellent color drawing of Perla capitata, as the species was formerly known, which you can compare to your excellent color photographs. It serves as the frontispiece to Peter W. Claassen's Plecoptera Nymnphs of America North of Mexico (Springfield, Ill: The Thomas Say Foundation, 1931).On page 45 Claassen notes: "...easily recognized by the two dark transverse bands across the head, the two dark trabnsverse bands on the femeora, the presence of caudal gills and the yellow and dark banded abdomen." As with you, Claasssen was at Cornell.

Regards,

RH Boyle, Cooperstown, NY

Troutnut