Header image
Enter a name
Lateral view of a Female Hexagenia limbata (Ephemeridae) (Hex) Mayfly Dun from the Namekagon River in Wisconsin
Hex Mayflies
Hexagenia limbata

The famous nocturnal Hex hatch of the Midwest (and a few other lucky locations) stirs to the surface mythically large brown trout that only touch streamers for the rest of the year.

Dorsal view of a Epeorus albertae (Heptageniidae) (Pink Lady) Mayfly Nymph from the East Fork Issaquah Creek in Washington
This specimen keys to the Epeorus albertae group of species. Of the five species in that group, the two known in Washington state are Epeorus albertae and Epeorus dulciana. Of the two, albertae has been collected in vastly more locations in Washington than dulciana, suggesting it is far more common. On that basis alone I'm tentatively putting this nymph in albertae, with the large caveat that there's no real information to rule out dulciana.
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 Species Pycnopsyche scabripennis (Great Autumn Brown Sedges)

Where & when

This species is relevant in parts of the Catskills.

In 32 records from GBIF, adults of this species have been collected during August (50%), September (19%), July (19%), and October (13%).

In 10 records from GBIF, this species has been collected at elevations ranging from 285 to 12631 ft, with an average (median) of 1319 ft.

Species Range

Start a Discussion of Pycnopsyche scabripennis

References

Caddisfly Species Pycnopsyche scabripennis (Great Autumn Brown Sedges)

Taxonomy
Species Range
Troutnut.com is copyright © 2004-2024 (email Jason). privacy policy