I've never seen this strange coloration on any Ephemerella subvaria nymph in a book before, but it's similar to several other specimens I collected on the same outing, including a larger one that I photographed. They were outnumbered by the "normal" Ephemerella subvaria nymphs in the sample.This mayfly was collected from Salmon Creek on March 29th, 2005 and added to Troutnut.com on April 7th, 2006.
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