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The Specimen

Baetidae (Blue-Winged Olives) Mayfly DunBaetidae (Blue-Winged Olives) Mayfly Dun View 7 PicturesThis specimen was collected on the same trip as a similar dun.
Collected May 28, 2005 from the Namekagon River in Wisconsin
Added to by on May 24, 2006

The Discussion

OldredbarnApril 6th, 2010, 10:27 am
Novi, MI

Posts: 2601
Jason, Taxon, Gonzo et al...

This one seems to have slipped through the id gauntlet...Does anyone want to hazzard a guess on the species level? BWO is a bit broad...

"Even when my best efforts fail it's a satisfying challenge, and that, after all, is the essence of fly fishing." -Chauncy Lively

"Envy not the man who lives beside the river, but the man the river flows through." Joseph T Heywood
TroutnutApril 6th, 2010, 5:08 pm
Bellevue, WA

Posts: 2727
Going to genus level for the Baetidae can be really tricky, and species level is even harder. The scientific keys don't provide any way to identify the female duns. It may be that someone very familiar with the family can recognize it by sight, but if I were to try I would have to fall back on the standard angler's method of identifying Baetids: pull a name out of a hat. "Let's see here... it's (rummage rummage rummage)... it's Baetis vagans" (That's no longer a valid species, but it is the name that seems to get pulled out of the hat most often.)
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist
MartinlfApril 6th, 2010, 5:42 pm
Palmyra PA

Posts: 3176
Jason, now you're being intentionally vague, aren't you?
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell

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