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Lateral view of a Male Baetis (Baetidae) (Blue-Winged Olive) Mayfly Dun from Mystery Creek #43 in New York
Blue-winged Olives
Baetis

Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.

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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Dicosmoecus gilvipes (October Caddis) Caddisfly Adult Pictures

This caddisfly was collected from the Touchet River in Washington on September 5th, 2010 and added to Troutnut.com by Bnewell on June 27th, 2011.

Discussions of this Adult

October Caddis
2 replies
Posted by Gutcutter on Sep 8, 2011
Last reply on Sep 8, 2011 by Sayfu
Is this the same large caddis that hatches in early October in Central PA? I don't recall them being that "orange", but the size is about right.

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Dicosmoecus gilvipes (October Caddis) Caddisfly Adult Pictures

Collection details
Location: Touchet River, Washington
Date: September 5th, 2010
Added to site: June 27th, 2011
Author: Bnewell
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