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Re:What is this? (1 viewing) (1) Guest
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#41
PandG (User)
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What is this? 3 Months, 3 Weeks ago  
We spotted this large amount of webbing on a Silver Birch tree at Gilfach. It is about 25 cms wide and runs up the trunk for nearly 2 metres. There were no signs of insects behind or on it.


Does anyone know what has made it?
 
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#42
PandG (User)
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Re:What is this? 3 Months ago  
At last we have found out what this may be.
John Langmaid has suggested that it is silk webbing produced by the larvae of the micro-moth - Argyresthia goedartella to protect their pupation sites in the bark crevices. This beautiful moth feeds in the Birch catkins & then can be seen flying around the trees in June.
Cheers, P&G
 
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emma (Admin)
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Re:What is this? 1 Month, 1 Week ago  
Wow! Moths are amazing. I've never seen anything like that before. I shall have to keep my eyes open when I'm out and about. Do you have a piccy of this micro-moth?
 
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