Header image
Enter a name
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.

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.

Pdcox has attached this picture to aid in identification. The message is below.
Unknown Bug
Pdcox
Kansas city

Posts: 12
Pdcox on Apr 15, 2020April 15th, 2020, 5:11 am EDT
Well this guy about blew my mind. No idea mayflies were in man made lakes. This bug was about 3/4 inch body length. Found yesterday, James Reed Park, cloudy, windy, 48 degrees. I have enhanced the green of the eyeballs a bit in Photoshop so they stand out, but could definitely see the color au natural.
Any help appreciated
Taxon
Taxon's profile picture
Site Editor
Plano, TX

Posts: 1311
Taxon on Apr 15, 2020April 15th, 2020, 9:10 am EDT
Hi Paul-

I believe this female subimago to be Stenonema femoratum.
Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com
Pdcox
Kansas city

Posts: 12
Pdcox on Apr 15, 2020April 15th, 2020, 9:28 am EDT
Thank you sir
Pdcox
Kansas city

Posts: 12
Pdcox on Apr 16, 2020April 16th, 2020, 2:25 am EDT
Also, what clued you in to this being female?
Taxon
Taxon's profile picture
Site Editor
Plano, TX

Posts: 1311
Taxon on Apr 16, 2020April 16th, 2020, 5:24 am EDT
The clues to it being a female were the absence of male claspers sticking out beyond the abdomen, in combination with the smaller compound eyes characteristic of a female.
Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com

Quick Reply

Related Discussions

1
Jul 2, 2007
by Taxon
8
Jul 28, 2007
by Martinlf
Troutnut.com is copyright © 2004-2024 (email Jason). privacy policy