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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 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.
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Lateral view of a Female Baetis (Baetidae) (Blue-Winged Olive) Mayfly Dun from Mystery Creek #43 in New York
I found this female in the same area as a male with similar markings, probably of the same species.
Martinlf
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Palmyra PA

Posts: 3047
Martinlf on Dec 18, 2008December 18th, 2008, 12:02 am EST
Casey, take a look at the underside of this bug.
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell
Taxon
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Plano, TX

Posts: 1311
Taxon on Dec 18, 2008December 18th, 2008, 3:55 am EST
Louis-

Context, please.
Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com
Martinlf
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Palmyra PA

Posts: 3047
Martinlf on Dec 18, 2008December 18th, 2008, 4:57 am EST
Touche, Taxon . . . I should have known better with you out their poised to strike at any hint of indecency.

For context, see Casey's question about blue wing olives in the "winter fishing - ice in the guides" thread. See, I wasn't being naughty!
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell
CaseyP
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Arlington, VA/ Mercersburg, PA

Posts: 653
CaseyP on Dec 18, 2008December 18th, 2008, 6:59 am EST
Louis,
y'know, this spring i tied up a whole box of caddis from large to small, tan to black, and a few larvae and sparkle caddis as well. it was neat having whatever i needed, and after a while i knew which ones to make more of. this winter it's going to be a box of small mayflies with "blue" wings and every sort of body color, and some nymphs and emergers as well. and after a while...

thanks a lot for unravelling that little puzzle for me. those bugs i'd seen on the stream in cooler weather were seldom "blue"--and now i know why, or at least that it's really so.

Taxon, it's getting darker every day...;-)

"You can observe a lot by watching." Yogi Berra
LittleJ
Hollidaysburg Pa

Posts: 251
LittleJ on Dec 18, 2008December 18th, 2008, 8:30 am EST
I'm with you casey, if you fish more than one stream, you'll need any number of 8 thousand patterns/colors/sizes when someone tells you the "olives" are on.
Taxon
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Site Editor
Plano, TX

Posts: 1311
Taxon on Dec 18, 2008December 18th, 2008, 3:16 pm EST
Louis,
Touche, Taxon . . . I should have known better with you out their poised to strike at any hint of indecency.


I plead innocent; thought maybe you were referring to those thingamajiggies:

Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com
Martinlf
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Moderator
Palmyra PA

Posts: 3047
Martinlf on Dec 19, 2008December 19th, 2008, 12:57 pm EST
Not me, I try never to refer to thingamajiggies if I can help it! ;>
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell

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