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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.

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 Mongaup Creek in New York
This little early-season dun molted into this spinner after I photographed her.
Adirman
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Monticello, NY

Posts: 479
Adirman on Sep 10, 2010September 10th, 2010, 3:10 am EDT
I was just going through some pics on the site and looking at Baetis, it really doesn't look much like a true BWO does it? I think a more effective dry pattern for these would be something more along the lines of like a March Brown or something, maybe a royal Wulff?
Taxon
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Site Editor
Plano, TX

Posts: 1311
Taxon on Sep 10, 2010September 10th, 2010, 4:47 am EDT
Adirman,

There really isn't any such thing as a "true" BWO. That's why it's much more effective when communicating about mayflies to use scientific names rather that common names, which can vary depending on the region (or even the stream/river) you happen to be fishing.
Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com
Adirman
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Monticello, NY

Posts: 479
Adirman on Sep 10, 2010September 10th, 2010, 5:51 am EDT
Yes, I see what you 're saying. Been doing some reading and lookin at pics to familiarize myself w/ the mayflies and I see that there's quite a bit of variation. Best thing maybe is to get a general impression as to what your bug's id is if you're fishing and match it color/size that way w/o worrying as much about names and labels of bugs and fly patterns. Another thing, I looked over the pics of the Iso's and I think they look pretty similar to Hendrickson and could see a novice like myself misidentifying. You think?
Motrout
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Posts: 319
Motrout on Sep 10, 2010September 10th, 2010, 6:32 am EDT
"That's why it's much more effective when communicating about mayflies to use scientific names rather that common names."
I see what you're saying, but the word Blue Winged Olive just has a better ring to it than Baetis...
"I don't know what fly fishing teaches us, but I think it's something we need to know."-John Gierach
http://fishingintheozarks.blogspot.com/
Taxon
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Site Editor
Plano, TX

Posts: 1311
Taxon on Sep 10, 2010September 10th, 2010, 8:00 am EDT
Motrout-

I see what you're saying, but the word Blue Winged Olive just has a better ring to it than Baetis...


Perhaps, but please consider the following list of mayflies which are referred to by that very name in flyfishing literature:

Acentrella turbida
Attenella attenuata
Attenella margarita
Baetis bicaudatus
Baetis brunneicolor
Baetis flavistriga
Baetis tricaudatus
Centroptilum spp.
Cloeon dipterum
Dannella lita
Dannella simplex
Drunella flavilinea
Drunella lata
Drunella cornuta
Drunella cornutella
Drunella walkeri
Ephemerella dorothea
Ephemerella excrucians
Heterocloeon anoka
Plauditus dubius
Plauditus futilis
Plauditus punctiventris
Procloeon ingens
Procloeon simile
Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com
Motrout
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Posts: 319
Motrout on Sep 10, 2010September 10th, 2010, 9:28 am EDT
You mean the #18, #20,and #22? :)

I'm mostly just kidding you, but I'll admit that I'm a sucker for the "traditional" names of the bugs... You know, Blue-winged Olives, Pale Morning Duns, and March Browns instead of the technical sounding Latin names.
"I don't know what fly fishing teaches us, but I think it's something we need to know."-John Gierach
http://fishingintheozarks.blogspot.com/
Jmd123
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Oscoda, MI

Posts: 2474
Jmd123 on Sep 11, 2010September 11th, 2010, 10:27 am EDT
Folks, the above-mentioned list is exactly why we scientific types use the Latin names instead of the "local" or "traditional" ones. For instance, look up all the common names for Poxomis nigromaculatus, a.k.a.:

Black crappie
Calico bass
Papermouth
etc. etc. etc.....

Jonathon

P.S. I do call them black crappie when I am catching them, though (on chartreuse Woolly Buggers, Killer Bass Flies, and even dries in the spring when they are feeding on midges [Chironomidae and/or others])...
No matter how big the one you just caught is, there's always a bigger one out there somewhere...
Jmd123
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Oscoda, MI

Posts: 2474
Jmd123 on Sep 11, 2010September 11th, 2010, 10:29 am EDT
P.S. I used an Adams recently to imitate an Isonychia, and a 13" smallie was thoroughly convinced (photo of said fish is posted elsewhere by Spence, a.k.a. Oldredbarn)...

JMD
No matter how big the one you just caught is, there's always a bigger one out there somewhere...
Martinlf
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Moderator
Palmyra PA

Posts: 3047
Martinlf on Sep 12, 2010September 12th, 2010, 9:35 am EDT
Some, like me, may walk a middle line. I try hard to know exactly what bug I'm dealing with, because the habits of one "sulphur," such as a Ephemerella dorthea may differ somewhat from another, such as an Ephemerella invaria, or widely from a bug that appears to be very similar, such as Heptegenia Lecrocuta. I may tell someone I'm fishing sulphurs in reference to any one of these, especially if I don't know which one I'm dealing with, or if my listener is apt to be put off by Latin. Or I may throw Latin at someone just to mess with them. I'll often use the term "olives" to describe any bug that falls into the many Geni and Species that term is linked with. Even so, it sometimes helps me to know, as exactly as I can, which bug it is, since knowing this may help me understand hatching behavior. I'm delighted that some of my "olives" are orange, and that some are more grey than olive. The term "olive" for me is just a bit of quick and dirty shorthand, useful at times--not so useful at others.
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell
Shawnny3
Moderator
Pleasant Gap, PA

Posts: 1197
Shawnny3 on Sep 12, 2010September 12th, 2010, 12:45 pm EDT
Or I may throw Latin at someone just to mess with them.


You wouldn't really do that, would you, Louis? And here I thought you were a gentleman...

-Shawn
Jewelry-Quality Artistic Salmon Flies, by Shawn Davis
www.davisflydesigns.com
Martinlf
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Moderator
Palmyra PA

Posts: 3047
Martinlf on Sep 12, 2010September 12th, 2010, 3:31 pm EDT
Looks can be deceiving, Shawn.
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell

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