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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.

Dorsal view of a Pycnopsyche guttifera (Limnephilidae) (Great Autumn Brown Sedge) Caddisfly Larva from the Yakima River in Washington
This specimen appears to be of the same species as this one collected in the same spot two months earlier. The identification of both is tentative. This one suffered some physical damage before being photographed, too, so the colors aren't totally natural. I was mostly photographing it to test out some new camera setting idea, which worked really well for a couple of closeups.
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.

Leucrocuta hebe (Little Yellow Quill) Mayfly Nymph Pictures

Ruler view of a Leucrocuta hebe (Heptageniidae) (Little Yellow Quill) Mayfly Nymph from the Bois Brule River in Wisconsin
Ventral view of a Leucrocuta hebe (Heptageniidae) (Little Yellow Quill) Mayfly Nymph from the Bois Brule River in Wisconsin
Dorsal view of a Leucrocuta hebe (Heptageniidae) (Little Yellow Quill) Mayfly Nymph from the Bois Brule River in Wisconsin
Leucrocuta hebe (Heptageniidae) (Little Yellow Quill) Mayfly Nymph from the Bois Brule River in Wisconsin

This mayfly was collected from the Bois Brule River in Wisconsin on June 9th, 2005 and added to Troutnut.com by Troutnut on May 26th, 2006.

Discussions of this Nymph

Heptagenia?
2 replies
Posted by GONZO on Jul 19, 2011
Last reply on Jul 19, 2011 by GONZO
This looks more like a Leucrocuta nymph to me (possibly L. hebe?).

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Leucrocuta hebe (Little Yellow Quill) Mayfly Nymph Pictures

Collection details
Location: Bois Brule River, Wisconsin
Date: June 9th, 2005
Added to site: May 26th, 2006
Author: Troutnut
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