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Rhithrogena Mayfly Nymph Pictures

 Based on the lack of coloration and the two bars on the last tergite (
One tergite of this Isonychia bicolor mayfly spinner is highlighted in red.
One tergite of this Isonychia bicolor mayfly spinner is highlighted in red.
Tergite: The top (dorsal) part of a single segment on an insect's abdomen when it consists of a single chitinous plate (sclerite), or an individual sclerite if the segment has more than one.
)
this may be Rhithrogena virilis.


This mayfly was collected from Hungry Horse Creek on May 12th, 2005 and added to Troutnut.com on June 28th, 2011.

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Rhithrogena Mayfly Nymph from Hungry Horse Creek in Montana
AuthorBnewell
CameraNIKON D70

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