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.
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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.
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Caddisfly Genus Parapsyche
This species inhabits such tiny streams that it is not important to anglers.
Where & when
Preferred waters: Extremely small streams
Altitude: High
In 112 records from GBIF, adults of this genus have mostly been collected during July (31%), June (28%), May (19%), and August (11%).
In 72 records from GBIF, this genus has been collected at elevations ranging from 128 to 9219 ft, with an average (median) of 3730 ft.
Genus Range
Start a Discussion of Parapsyche
References
- LaFontaine, Gary. 1981. Caddisflies. The Lyons Press.
Caddisfly Genus Parapsyche
Taxonomy
Species in Parapsyche: Parapsyche apicalis, Parapsyche cardis
5 species (Parapsyche almota, Parapsyche elsis, Parapsyche extensa, Parapsyche spinata, and Parapsyche turbinata) aren't included.