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Isoperla
Isoperla is a genus in the family Perlodidae, also known as the perlodid stoneflies, stripetails or springflies. from Wikipedia
I know it is a larva of some kind, but I do not know which one.
Thank you so much for your great help JimJohnson2! I already had a picture of Stonefly so I add it too and now it is complete. I truly appreciate your help.