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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.

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 fuscula (Green Sedge) Caddisfly Larva Pictures

Ruler view of a Rhyacophila fuscula (Rhyacophilidae) (Green Sedge) Caddisfly Larva from Mystery Creek #62 in New York The smallest ruler marks are 1 mm.
Dorsal view of a Rhyacophila fuscula (Rhyacophilidae) (Green Sedge) Caddisfly Larva from Mystery Creek #62 in New York
Rhyacophila fuscula (Rhyacophilidae) (Green Sedge) Caddisfly Larva from Mystery Creek #62 in New York
Ventral view of a Rhyacophila fuscula (Rhyacophilidae) (Green Sedge) Caddisfly Larva from Mystery Creek #62 in New York
Rhyacophila fuscula (Rhyacophilidae) (Green Sedge) Caddisfly Larva from Mystery Creek #62 in New York
Rhyacophila fuscula (Rhyacophilidae) (Green Sedge) Caddisfly Larva from Mystery Creek #62 in New York
Rhyacophila fuscula (Rhyacophilidae) (Green Sedge) Caddisfly Larva from Mystery Creek #62 in New York
Lateral view of a Rhyacophila fuscula (Rhyacophilidae) (Green Sedge) Caddisfly Larva from Mystery Creek #62 in New York
Rhyacophila fuscula (Rhyacophilidae) (Green Sedge) Caddisfly Larva from Mystery Creek #62 in New York
This picture came out poorly, but it still shows pretty well just what effective tools those rear prolegs are for caddis larvae to grip the rocks.  It can be surprisingly hard to pick them up when they're grabbing onto something.

Rhyacophila fuscula (Rhyacophilidae) (Green Sedge) Caddisfly Larva from Mystery Creek #62 in New York
Artistic view of a Rhyacophila fuscula (Rhyacophilidae) (Green Sedge) Caddisfly Larva from Mystery Creek #62 in New York

This caddisfly was collected from Mystery Creek #62 in New York on April 1st, 2007 and added to Troutnut.com by Troutnut on April 3rd, 2007.

Discussions of this Larva

nice creatures
1 replies
Posted by Avinaash on Feb 20, 2018
Last reply on Feb 20, 2018 by Taxon
just starting my research on these
sedge larva
4 replies
Posted by HELENE on Oct 10, 2007
Last reply on Aug 9, 2012 by Sayfu
I've found some sedge larva (?) in a small stream in Wales, living in small tiny, tiny pebbles, like a tunnel! I do recognize the head and legs and would love to know a little bit more about them! Some also had sticks glued to the pebbles, looking like grasshoppers that's drowned! I shall look forward to hearing from you on my e-mail - helenemills2@yahoo.co.uk - Thanks Helene Mills
insect help
21 replies
Posted by Herefishy on Apr 7, 2007
Last reply on Jan 9, 2012 by Entoman
I'm new to flyfishing and the art/ science of insect identification.
This caddis larvae is also known as a hellgramite- correct? Is a caddis larvae and a caddisfly the same? Are there any simple books out there that will help me get started with realy understanding the food that trout eat?
Rhyacophila Emergence
2 replies
Posted by Flybyknight on Nov 23, 2007
Last reply on Jan 28, 2010 by FlyDoc
Interesting to learn that Jason collected R. fuscula April 1st. My hatch chart for the East Branch Delaware needs to be corrected, as I had R. fuscula hatching much later. Schweibert mentions this insect on p.83.

Dick
Ryacophila on spring?
8 replies
Posted by LittleJ on Nov 4, 2008
Last reply on Nov 8, 2008 by LittleJ
any one know if we have these guys on spring creek(pa) ? I was putting together my box for fri. and realized all I know of spring creek caddis are tan and no grannoms.
thanks
Jeff

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Rhyacophila fuscula (Green Sedge) Caddisfly Larva Pictures

Collection details
Location: Mystery Creek #62, New York
Date: April 1st, 2007
Added to site: April 3rd, 2007
Author: Troutnut
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