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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.
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Caddisfly Genus Ceratopsyche (Spotted Sedges)

This genus has been proposed off and on for years. For reasons beyond the scope of this hatch page to explain, it briefly had most of the important species of the most important genus Hydropsyche in its fold. They have all been moved back and the name Ceratopsyche is no longer valid.

Where & when

In 674 records from GBIF, adults of this genus have mostly been collected during June (30%), July (21%), August (17%), May (16%), and September (7%).

In 385 records from GBIF, this genus has been collected at elevations ranging from 3 to 10007 ft, with an average (median) of 1781 ft.

Discussions of Ceratopsyche

What flies to imitate
12 replies
Posted by Goose on Sep 19, 2006
Last reply on Mar 21, 2010 by Martinlf
Jason: What species', in common angler language, are represented in this genus? I'm trying to determine which ones I should spend my time on imitating them. Are they October Caddis, Grannom Caddis, etc. Are those afore mentioned sedges? I would like to know the names so I can tie them the correct size and colors. Just trying to learn. Thanks

Start a Discussion of Ceratopsyche

References

Caddisfly Genus Ceratopsyche (Spotted Sedges)

Taxonomy
Species in Ceratopsyche
Ceratopsyche morosa
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Species in Ceratopsyche: Ceratopsyche morosa
22 species (Ceratopsyche aenigma, Ceratopsyche alhedra, Ceratopsyche amblis, Ceratopsyche andersoni, Ceratopsyche centra, Ceratopsyche cheilonis, Ceratopsyche cora, Ceratopsyche dorata, Ceratopsyche etnieri, Ceratopsyche intrica, Ceratopsyche macleodi, Ceratopsyche oslari, Ceratopsyche piatrix, Ceratopsyche protis, Ceratopsyche slossonae, Ceratopsyche sparna, Ceratopsyche tana, Ceratopsyche vanaca, Ceratopsyche venada, Ceratopsyche ventura, Ceratopsyche vexa, and Ceratopsyche walkeri) aren't included.
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