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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.

Dorsal view of a Limnephilidae (Giant Sedges) Caddisfly Larva from the Yakima River in Washington
This specimen resembled several others of around the same size and perhaps the same species, which were pretty common in my February sample from the upper Yakima. Unfortunately, I misplaced the specimen before I could get it under a microscope for a definitive ID.
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.

Mayfly Genus Fallceon (Blue-Winged Olives)

Species of the Fallceon genus can be identified by having typical Baetis dark or olivaceous coloration and the hooked process on its hind wings of Anafroptilum (prev. Centroptilum). This genus has only two species of possible interest to anglers:

Fallceon quilleri - a former species of Baetis that has had eight former Baetis species synonymized with it. It has a continental distribution.
Fallceon thermophilos - a former species of Baetis that has had one species from Baetis synonymized with it. It has a Northwest distribution.

Where & when

In 15 records from GBIF, adults of this genus have been collected during July (20%), September (20%), April (20%), August (13%), June (13%), May (7%), and March (7%).

In 119 records from GBIF, this genus has been collected at elevations ranging from 740 to 11401 ft, with an average (median) of 4938 ft.

Genus Range

Start a Discussion of Fallceon

Mayfly Genus Fallceon (Blue-Winged Olives)

Taxonomy
5 species (Fallceon eatoni, Fallceon fortipalpus, Fallceon longifolius, Fallceon sageae, and Fallceon sonora) aren't included.
Genus Range
Common Name
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