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> > Schroon River Stone Fly

Cstiles has attached this picture to aid in identification. The message is below.
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CstilesJune 13th, 2010, 5:28 am
Posts: 2I have seen several of these nymphs over the years but Not sure what they are or what the adult looks like. Any help would be appreciated.

Chris
GONZOJune 13th, 2010, 8:33 am
Site Editor
"Bear Swamp," PA

Posts: 1681
Chris,

Your stonefly nymph looks like Paragnetina media. This is one of the most common large perlids in much of the East and Midwest. The adults are dark-winged with yellowish bellies. They look like this: http://bugguide.net/node/view/404851/bgimage
CstilesJune 13th, 2010, 12:56 pm
Posts: 2Gonzo,
Thanks for the ID. The Schroon is so loaded with different types of stone flies, It's hard to keep track of all of them. The big goldens (Acroneuria carolinensis) are predominate. I estimate that 80% of the trout bug volume is made up of caddis and stones. Mayflies and ants making up the final 20%.
Thanks again,
Chris

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