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The Specimen

Hexagenia limbata (Hex) Mayfly NymphHexagenia limbata (Hex) Mayfly Nymph View 4 Pictures
Collected June 5, 2005 from the Marengo River in Wisconsin
Added to Troutnut.com by on May 25, 2006

The Discussion

BeardiusAugust 1st, 2008, 10:45 am
Posts: 19This looks to be either Hexagenia or Litobrancha based upon the frontal process being rounded and not forked. Probably is Hexagenia based upon where it was collected and Hexagenia being so widespread and common, but I cannot tell from the photo if the gill on the first abdominal segment is forked or single from these photos.
TroutnutAugust 2nd, 2008, 2:26 am
Administrator
Bellevue, WA

Posts: 2544
You're right. I can't see how I would possibly have misidentified this one, so I must have just absent-mindedly clicked it into the wrong category when I added it to the site.
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist

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