This nymph was one of many I collected with vivid white or semi-transparent markings on the front of the head, the sides of the pronotum (Pronotum: The top of the insect prothorax.), and the last abdominal segments.This mayfly was collected from the Gulkana River on July 17th, 2011 and added to Troutnut.com on July 20th, 2011.
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