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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Amphizoa Beetle Larva Amphizoa Beetle Larva

Dorsal view of a Amphizoa (Amphizoidae) Beetle Larva from Sears Creek in Washington

This is the first of it's family I've seen, collected from a tiny, fishless stream in the Cascades. The three species of this genus all live in the Northwest and are predators that primarily eat stonefly nymphs Merritt R.W., Cummins, K.W., and Berg, M.B. (2019).

5 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.

Neophylax (Autumn Mottled Sedge) Caddisfly Larva Pictures

The size of the head compared to the body in this larva is surprising, and I think this means it's a fairly early instar of something which is going to get a lot bigger, but I'm not sure.

Ruler view of a Neophylax (Thremmatidae) (Autumn Mottled Sedge) Caddisfly Larva from the Neversink River (above reservoir) in New York The smallest ruler marks are 1 mm.

Case view of a Neophylax (Thremmatidae) (Autumn Mottled Sedge) Caddisfly Larva from the Neversink River (above reservoir) in New York

Neophylax (Thremmatidae) (Autumn Mottled Sedge) Caddisfly Larva from the Neversink River (above reservoir) in New York

Lateral view of a Neophylax (Thremmatidae) (Autumn Mottled Sedge) Caddisfly Larva from the Neversink River (above reservoir) in New York

Dorsal view of a Neophylax (Thremmatidae) (Autumn Mottled Sedge) Caddisfly Larva from the Neversink River (above reservoir) in New York

This caddisfly was collected from the Neversink River (above reservoir) in New York on May 6th, 2007 and added to Troutnut.com by Troutnut on May 10th, 2007.

Discussions of this Larva

Looks like neophylax

1 replies

Posted by Litobrancha on May 13, 2007

Last reply on Dec 21, 2007 by Creno

can't tell how much mesonotum sclerites are emarginated but has the horsehead look of Neophylax. case too. legs are long too. don't know any of the other uenoids.

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References

Merritt R.W., Cummins, K.W., and Berg, M.B. 2019. An Introduction to the Aquatic Insects of North America (Fifth Edition). Kendall/Hunt Publishing Company.