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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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Dorsal view of a Neoleptophlebia (Leptophlebiidae) Mayfly Nymph from Mongaup Creek in New York
Martinlf
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Palmyra PA

Posts: 3047
Martinlf on Apr 4, 2009April 4th, 2009, 11:09 am EDT
Jason, thanks. I did look on the site, but somehow overlooked these photos. This is helpful. I also did a general Google image search and got all sorts of colors, but most of the lighter BQ nymphs looked immature, with light wing pads. You and others responding are getting me closer to an answer about my emerger question.
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell

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