Artistic view of a Male Pteronarcys californica (Pteronarcyidae) (Giant Salmonfly) Stonefly Adult from the Gallatin River in Montana

Salmonflies
Pteronarcys californica

The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.

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)

Doroneuria baumanni (Golden Stone) Stonefly Nymph Doroneuria baumanni (Golden Stone) Stonefly Nymph

Dorsal view of a Doroneuria baumanni (Perlidae) (Golden Stone) Stonefly Nymph from Sears Creek 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.

Grindstone Lake Wisconsin mayfly hatch

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

Dave_K
Posts: 6

Dave_K on Jul 1, 2008July 1st, 2008, 4:23 pm EDT

The mayflys in the attached photos hatch in great numbers for days, maybe weeks on Grindstone Lake near Hayward, Wisconsin. I'd like to know what kind they are, and any patterns recommended to match. Photos were taken June 25, 2008. Thanks, .....Dave

GONZO
Site Editor
"Bear Swamp," PA

Posts: 1681

GONZO on Jul 1, 2008July 1st, 2008, 4:41 pm EDT

Dave, they are Brown Drakes (Ephemera simulans). The ones in the photos are male spinners. I'll let others suggest patterns for the adults. My favorite is a wiggle nymph pattern designed to imitate the slender burrowing nymphs as they swim toward the surface.

Wiflyfisher

Wisconsin

Posts: 622

Wiflyfisher on Jul 2, 2008July 2nd, 2008, 12:38 am EDT

I have great success during the Ephemera simulans hatch on the rivers by you using an extended-body comparadun dryfly. As Gonzo stated a wiggle nymph works the best imitating the emerging nymphs.

John S.
https://WiFlyFisher.com

Dave_K
Posts: 6

Dave_K on Jul 2, 2008July 2nd, 2008, 3:35 pm EDT

Thanks very much GONZO and Wiflyfisher. While I'm more likely to fish for walleye in 15 feet with a split shot and leech, I won't go back to Grindstone without a brown drake pattern. Dave K