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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 Skwala (Perlodidae) (Large Springfly) Stonefly Nymph from the Yakima River in Washington
This Skwala nymph still has a couple months left to go before hatching, but it's still a good representative of its species, which was extremely abundant in my sample for a stonefly of this size. It's obvious why the Yakima is known for its Skwala hatch.
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.

Witmergreen has attached this picture. The message is below.
Helicopsychidae (Snail Case-Maker Caddisfly)
Witmergreen
Posts: 1
Witmergreen on Mar 29, 2009March 29th, 2009, 1:27 pm EDT
Hi all,

New to the site. I'm not a fisherman myself, but I do a lot of water quality monitoring and I've been making a concerted effort over the past year to become familiar with the various macroinvertebrates that live in streams, so I'm excited to see the wealth of excellent photos of them here. I have a small collection of some preserved specimens and thought I'd share a photo of one of them here - this is a helicopsycidae, or snail case-maker caddisfly that I found in one of the local streams last summer. Photo was taken using a Digimicro USB digital microscope. For scale, this guy measures about 1/4" across.
Steve
Taxon
Taxon's profile picture
Site Editor
Plano, TX

Posts: 1311
Taxon on Mar 29, 2009March 29th, 2009, 2:35 pm EDT
Hi Steve-

Interesting digital microscope, and the price is certainly right. I see it will capture a 1.3 MB image. However the image you posted (picture_281_full) is only 46 KB. Would appreciate your posting another image of your Snail Case Maker Caddisfly, which is just under Jason's 1 MB maximum, so I can more fully appreciate the capability of this scope.
Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com

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