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Stonefly Nymphs

Joined:
2010/6/26 11:19
From Along the Lehigh Above the Gap
Posts: 7132
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Would like help identifying these. I kinda think all of them are the same, except the Perlidae on top and mayfly nymph on the bottom. Stream sample taken on the Pohopoco creek in Carbon county.

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3949_517f1ee1314ae.jpg 611X611 px

Posted on: 2013/4/29 21:31
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Re: Stonefly Nymphs

Joined:
2008/1/31 17:19
From Pretty much everywhere at some point, Thorndale today.
Posts: 13483
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These are fairly big, right? (like, not in the little winter size category).

They could be some sort of salmon fly. But based on the overall shape and the head, I think they are more golden stones (perlidae) like the top one, just likely a different species.

Posted on: 2013/4/30 11:04


Re: Stonefly Nymphs

Joined:
2010/1/12 13:54
From Lancaster PA
Posts: 91
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The top one screams golden stone with the mottling apparent in the body and I agree with pcray that the others are some other sort of golden stone due to the sheer size. It also looks like you got yourself a march brown nymph at the bottom there with the three tails. Im still pretty green to identifying the nymphs so I could be wrong. Im sad to say I havent turned over many rocks at the Po but these are exciting discoveries. Nice work

Posted on: 2013/4/30 12:52


Re: Stonefly Nymphs

Joined:
2010/6/26 11:19
From Along the Lehigh Above the Gap
Posts: 7132
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Yes they were all fairly large stoneflies. They are in a petri dish, so I do not know if that helps you with size.

I collected these and a whole lot of other aquatic macro-invertebrates for my teaching science class. Teacher found everything I collected to be really great. However, in a class of 7 and 6 of them being girls, they were not to enthused. I only took the photo's of the stone's because I really enjoy observing them.

Posted on: 2013/4/30 13:42
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"Four of us wolves, running around the desert together, in Las Vegas, looking for strippers and cocaine. So tonight, I make a toast!"

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Re: Stonefly Nymphs

Joined:
2008/1/31 17:19
From Pretty much everywhere at some point, Thorndale today.
Posts: 13483
Offline
Yeah, good close up shots would likely be required to narrow to the exact species, and even then it's tough. But I think we've got it narrowed down to the genus. You have a bunch of golden stonefly nymphs there, at least 2 different species. Plus one mayfly nymph.

Philly, there are some species of mayfly with 3 tails at the nymph stage, and only 2 in duns and spinners. That said, this one's a clinger, and certainly could be a March Brown.

Posted on: 2013/4/30 15:16


Re: Stonefly Nymphs

Joined:
2008/8/24 20:26
From Mount Joy, PA
Posts: 2222
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If six of them were girls, you should have shown them the worm you go fishing with!

Posted on: 2013/4/30 19:07


Re: Stonefly Nymphs

Joined:
2010/6/26 11:19
From Along the Lehigh Above the Gap
Posts: 7132
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A few of them have seen it already. Heyya!

Posted on: 2013/4/30 22:39
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http://bugflingerandfeatherlasher.blogspot.com/



Re: Stonefly Nymphs

Joined:
2006/9/13 22:36
From Tioga co. formerly of bucks co.
Posts: 5569
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Golden Stone ( Acroneuria abnormis )

Posted on: 2013/5/7 18:04
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