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

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Perlodidae (Springflies and Yellow Stones) Stonefly Nymph Perlodidae (Springflies and Yellow Stones) Stonefly Nymph

Artistic view of a Perlodidae (Springflies and Yellow Stones) Stonefly Nymph from the Yakima River in Washington

This one seems to lead to Couplet 35 of the Key to Genera of Perlodidae Nymphs and the genus Isoperla, but I'm skeptical that's correct based on the general look. I need to get it under the microscope to review several choices in the key, and it'll probably end up a different Perlodidae.

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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.

Rhyacophila (Green Sedge) Caddisfly Larva Pictures

Dave Ruiter identified this specimen as part of the Rhyacophila betteni group, but with over 20 species it's difficult to narrow down beyond that.

Lateral view of a Rhyacophila (Rhyacophilidae) (Green Sedge) Caddisfly Larva from Mystery Creek #249 in Washington

Rhyacophila (Rhyacophilidae) (Green Sedge) Caddisfly Larva from Mystery Creek #249 in Washington

Ventral view of a Rhyacophila (Rhyacophilidae) (Green Sedge) Caddisfly Larva from Mystery Creek #249 in Washington

Ruler view of a Rhyacophila (Rhyacophilidae) (Green Sedge) Caddisfly Larva from Mystery Creek #249 in Washington The smallest ruler marks are 1 mm.

This caddisfly was collected from Mystery Creek #249 in Washington on July 25th, 2019 and added to Troutnut.com by Troutnut on July 26th, 2019.

Discussions of this Larva

Rhyacophila betteni group

2 replies

Posted by Creno on Aug 8, 2019

Last reply on Aug 10, 2019 by Creno

This is one of the Rhyacophila betteni group. The R. betteni group consists of over 20 widespread, western species; common in small to medium, rocky trout streams.

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