Header image
Enter a name
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.

Case view of a Pycnopsyche guttifera (Limnephilidae) (Great Autumn Brown Sedge) Caddisfly Larva from the Yakima River in Washington
It's only barely visible in one of my pictures, but I confirmed under the microscope that this one has a prosternal horn and the antennae are mid-way between the eyes and front of the head capsule.

I'm calling this one Pycnopsyche, but it's a bit perplexing. It seems to key definitively to at least Couplet 8 of the Key to Genera of Limnephilidae Larvae. That narrows it down to three genera, and the case seems wrong for the other two. The case looks right for Pycnopsyche, and it fits one of the key characteristics: "Abdominal sternum II without chloride epithelium and abdominal segment IX with only single seta on each side of dorsal sclerite." However, the characteristic "metanotal sa1 sclerites not fused, although often contiguous" does not seem to fit well. Those sclerites sure look fused to me, although I can make out a thin groove in the touching halves in the anterior half under the microscope. Perhaps this is a regional variation.

The only species of Pycnopsyche documented in Washington state is Pycnopsyche guttifera, and the colors and markings around the head of this specimen seem to match very well a specimen of that species from Massachusetts on Bugguide. So I am placing it in that species for now.

Whatever species this is, I photographed another specimen of seemingly the same species from the same spot a couple months later.
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.

You can create new topics in this section from each hatch's page in the insect section.
Topic
Replies
Last Reply
Black flies--bane and boon [Page: 1, 2]
Apr 4, 2007 by GONZO in family Simuliidae
37
Jul 13, 2011
by Jmd123
3
Jul 10, 2011
by Entoman
Brown Drake? [Page: 1, 2]
Jun 19, 2011 by Derdmann in species Ephemera simulans
20
Jun 29, 2011
by TNEAL
5
Jun 28, 2011
by PaulRoberts
Hexagenia orlando
Feb 29, 2008 by Curtis in genus Hexagenia
4
Mar 1, 2011
by Jmd123
15
Jan 31, 2011
by Entoman
Centroptilum?
Jan 29, 2011 by Entoman in genus Anafroptilum
0
Some Photos for Fred
Jan 26, 2011 by Martinlf in order Isopoda
4
Jan 28, 2011
by FredH
Baetid Confusion [Page: 1, 2]
Jan 15, 2011 by Entoman in family Baetidae
24
Jan 25, 2011
by Entoman
Banksiola
Jan 14, 2011 by Entoman in genus Banksiola
4
Jan 22, 2011
by Entoman
Sialis
Jan 19, 2011 by Entoman in family Sialidae
8
Jan 20, 2011
by Taxon
Rainy day Bwos's [Page: 1, 2, 3]
Jun 16, 2010 by Dryfly in family Baetidae
50
Nov 28, 2010
by Taxon
species taxonomy
Oct 29, 2010 by Konchu in genus Caudatella
3
Oct 30, 2010
by Taxon
trico broods [Page: 1, 2]
Aug 1, 2010 by Gutcutter in family Leptohyphidae
26
Sep 6, 2010
by Adirman
Flightless Mayfly??
Apr 3, 2010 by ZenCane in genus Serratella
8
Apr 5, 2010
by Gutcutter
What flies to imitate
Sep 19, 2006 by Goose in genus Ceratopsyche
12
Mar 21, 2010
by Martinlf
Lepto question
Mar 6, 2010 by JasonM in family Leptophlebiidae
1
Mar 6, 2010
by Taxon
Midge Video
Mar 4, 2010 by JAD in family Chironomidae
5
Mar 4, 2010
by Martinlf
2 tails or 3
Feb 5, 2010 by Snagy in species Stenonema vicarium
1
Feb 6, 2010
by Taxon
deligon
Jan 15, 2010 by Deligon in family Nemouridae
2
Jan 22, 2010
by Martinlf
6
Jan 4, 2010
by Konchu
Caddisfly adult ID
Dec 18, 2009 by Dryfly in order Trichoptera
3
Dec 19, 2009
by Creno
6
Oct 31, 2009
by Taxon
Taxonomy question
Oct 29, 2009 by Doublezz105 in family Leptohyphidae
3
Oct 30, 2009
by Doublezz105
Baetisca in Vermont
Oct 25, 2009 by BRAT in genus Baetisca
1
Oct 25, 2009
by Taxon
5
Aug 30, 2009
by GONZO
Aw Shucks
May 19, 2009 by Martinlf in species Ephemerella invaria
10
Jul 24, 2009
by Martinlf
15
Jul 9, 2009
by Martinlf
6
Jun 23, 2009
by Martinlf
Emerger
Jun 10, 2009 by Martinlf in genus Serratella
6
Jun 11, 2009
by GONZO
1
Jun 10, 2009
by Martinlf
Newbie
May 25, 2009 by GennieS in order Trichoptera
2
May 26, 2009
by Shawnny3
9
Apr 29, 2009
by Taxon
10
Apr 29, 2009
by Troutnut
Troutnut.com is copyright © 2004-2024 (email Jason). privacy policy