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.

Dorsal view of a Setvena wahkeena (Perlodidae) (Wahkeena Springfly) Stonefly Nymph from Mystery Creek #199 in Washington
As far as I can tell, this species has only previously been reported from one site in Oregon along the Columbia gorge. However, the key characteristics are fairly unmistakable in all except for one minor detail:
— 4 small yellow spots on frons visible in photos
— Narrow occipital spinule row curves forward (but doesn’t quite meet on stem of ecdysial suture, as it's supposed to in this species)
— Short spinules on anterior margin of front legs
— Short rposterior row of blunt spinules on abdominal tergae, rather than elongated spinules dorsally
I caught several of these mature nymphs in the fishless, tiny headwaters of a creek high in the Wenatchee Mountains.
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.

Caddisfly Genus Ironoquia (Eastern Box Wing Sedges)

Where & when

Time of year : Fall

These species enter diapause during the summer to synchronize their fall emergence.

In 61 records from GBIF, adults of this genus have mostly been collected during September (34%), August (28%), October (23%), and July (8%).

In 21 records from GBIF, this genus has been collected at elevations ranging from 16 to 4117 ft, with an average (median) of 2592 ft.

Genus Range

Egg-Laying behavior

Time of day: Evening; earlier when cooler

Larva & pupa biology

Diet: Leaves, algae

Specimens of the Caddisfly Genus Ironoquia

1 Adult

Start a Discussion of Ironoquia

References

  • LaFontaine, Gary. 1981. Caddisflies. The Lyons Press.

Caddisfly Genus Ironoquia (Eastern Box Wing Sedges)

Taxonomy
Species in Ironoquia: Ironoquia lyrata, Ironoquia parvula
2 species (Ironoquia kaskaskia and Ironoquia punctatissima) aren't included.
Genus Range
Troutnut.com is copyright © 2004-2024 (email Jason). privacy policy