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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.

Sixmile Creek in New York

Stream photos

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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
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Limnephilus (Summer Flier Sedge) Caddisfly LarvaLimnephilus (Summer Flier Sedge) Caddisfly Larva
Case view of a Limnephilus (Limnephilidae) (Summer Flier Sedge) Caddisfly Larva from the Yakima River in Washington
This seems to be a young larva of Limnephilus. Although not clear in the picture, several ventral abdominal segments have chloride epithelia.
7 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.

Updates from June 16, 2005

On-stream insect photos by Troutnut from the Chippewa River in Wisconsin

I photographed this Calopteryx maculata damselfly on some streamside grass while I was out with the Wisconsin DNR helping transplant some stranded sturgeon. From the Chippewa River in Wisconsin
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Updates from June 15, 2005

Photos by Troutnut from the Chippewa River in Wisconsin

This pretty rapids is one of many channels of a large warmwater river. From the Chippewa River in Wisconsin

Closeup insects by Bnewell from the Vermillion River in Montana

Neoleptophlebia Mayfly Nymph
3 Pictures
Neoleptophlebia (Leptophlebiidae) Mayfly Nymph from the Vermillion River in Montana
Collected June 15, 2005 from the Vermillion River in Montana
Added by Bnewell on June 27, 2011
Collected June 15, 2005 from the Vermillion River in Montana and added by Bnewell on June 27, 2011
Drunella grandis (Western Green Drake) Mayfly Nymph
2 Pictures
Drunella grandis (Ephemerellidae) (Western Green Drake) Mayfly Nymph from the Vermillion River in Montana
Collected June 15, 2005 from the Vermillion River in Montana
Added by Bnewell on June 27, 2011
Collected June 15, 2005 from the Vermillion River in Montana and added by Bnewell on June 27, 2011
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Updates from June 14, 2005

On-stream insect photos by Troutnut

Always keep an eye on your waders for sign of caddisflies, both live adults and fresh eggs. Both are a sign that the adults are diving to lay their eggs on underwater objects (like your leg), and that means a diving caddis pattern (I like LaFontaine's) is probably the best fly to use.
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Updates from June 13, 2005

Closeup insects by Troutnut and Bnewell from the Namekagon River, the Teal River, Kicking Horse Reservoir, Station Creek, and the Vermillion River in Wisconsin and Montana

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Female Isonychia bicolor (Mahogany Dun) Mayfly Dun
Lateral view of a Female Isonychia bicolor (Isonychiidae) (Mahogany Dun) Mayfly Dun from the Namekagon River in Wisconsin
5
Male Eurylophella (Chocolate Dun) Mayfly Dun
Lateral view of a Male Eurylophella (Ephemerellidae) (Chocolate Dun) Mayfly Dun from the Teal River in Wisconsin
2
Female Eurylophella (Chocolate Dun) Mayfly Spinner
Lateral view of a Female Eurylophella (Ephemerellidae) (Chocolate Dun) Mayfly Spinner from the Teal River in Wisconsin
3
Female Caenis (Angler's Curse) Mayfly Spinner
Female Caenis (Caenidae) (Angler's Curse) Mayfly Spinner from Kicking Horse Reservoir in Montana
1
Yoraperla brevis (Roachfly) Stonefly Adult
Yoraperla brevis (Peltoperlidae) (Roachfly) Stonefly Adult from Station Creek in Montana
1
Sweltsa (Sallfly) Stonefly Adult
Sweltsa (Chloroperlidae) (Sallfly) Stonefly Adult from the Vermillion River in Montana
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Updates from June 12, 2005

Closeup insects by Troutnut from the Namekagon River in Wisconsin

Female Hexagenia limbata (Hex) Mayfly Dun
8 Pictures
Artistic view of a Female Hexagenia limbata (Ephemeridae) (Hex) Mayfly Dun from the Namekagon River in Wisconsin
Added by Troutnut on May 26, 2006
Collected June 12, 2005 from the Namekagon River in Wisconsin and added by Troutnut on May 26, 2006
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