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aquatic worm or insect larvae

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#1 Guest_beanosvaughn_*

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Posted 09 June 2011 - 05:14 PM

I was at a small creek today sampling for freshwater inverts.I flipped a rock and found something that looked almost like a cacoon of some sort.Inside was a pale green organism wriggling around. My first thought was an aquatic worm of some kind but I am not sure. Sorry I do not have pics. Can anyone ID this?

#2 Guest_EricaWieser_*

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Posted 09 June 2011 - 05:50 PM

Was it a caddisfly larvae?
Image of caddisfly: http://orgs.bsc.edu/...vaeDSCN2934.JPG (they hide in a cocoon most of the time)
Caddisfly cocoons can be created out of any material near the larvae at the time of construction, and can be highly variable in color and texture. Some people purposefully give the caddisfly jewels and it makes its cocoon out of them: http://glittertitz-....rporate-bits-of and http://galentismarts...entomology.aspx

Edited by EricaWieser, 09 June 2011 - 05:52 PM.

#3 Guest_beanosvaughn_*

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Posted 09 June 2011 - 06:07 PM

That's it.I assumed worm because I didnt open up the cacoon enough to see the legs. Thanks for the reply. :smile2:

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