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Pteronarcys dorsata (Giant Black Stonefly) Stonefly Nymph Pictures

This stonefly was collected from the Namekagon River on January 13th, 2004 and added to on January 25th, 2006.

Recent Discussions of this Nymph

pternonarcys 1 Reply »
Posted by Flyfisher11 on Feb 25, 2022
Last reply on Feb 26, 2022 by Wiflyfisher

They're plentiful in places here in NW GA. I have noticed that they seem to concentrate in small areas of the stream, while 100 yards up or downstream they are not to be found. Typically, just below very swift water.

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