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Ephemerella subvaria (Hendrickson) Mayfly Nymph Pictures

Classification
Kingdom Animalia (Animals)
» Phylum Arthropoda (Arthropods)
» Class Insecta (Insects)
» Order Ephemeroptera (Mayflies)
» Family Ephemerellidae (Hendricksons, Sulphurs, PMDs, BWOs)
» Genus Ephemerella (Hendricksons, Sulphurs, PMDs)
» Species subvaria (Hendrickson)
 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 the northeastern United States on March 29th, 2005 and added to Troutnut.com on April 7th, 2006.

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CameraCanon EOS 20D
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CameraCanon EOS 20D

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