This specimen was completely green when I collected it from among many others gathered on a midstream rock along with their nymphal shucks (Shuck: The shed exoskeleton left over when an insect molts into its next stage or instar. Most often it describes the last nymphal or pupal skin exited during emergence into a winged adult.) early in the morning. There was also a yellow one with them, which I assumed was a different species. Now that I've seen how this one started changing from green to yellow, I have to wonder if they weren't the same species and the yellow one was just older.
This stonefly was collected from Brodhead Creek on May 29th, 2007 and added to Troutnut.com on June 4th, 2007.
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