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Hexagenia limbata (Hex) Mayfly Nymph Pictures

This mayfly was collected from the Marengo River on June 5th, 2005 and added to Troutnut.com on May 25th, 2006.

Recent Discussions of this Nymph

This is not Ephemera simulans 1 Reply »
Posted by Beardius on Aug 1, 2008
Last reply on Aug 2, 2008 by Troutnut
This 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.
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