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What kind of structure is this?

Community and Forum → Insects biology and faunistics → What kind of structure is this?

silber2004, 25.02.2010 16:32

Help us understand what it is - a house or just a warehouse, and most importantly, who is its owner?
The picture was taken in the north-east of the Arkhangelsk region, a birch tree lies across a forest river, the structure hangs in the middle, 1.5 m above the water.
Flies are dead, what is attached to each other is not clear. You can't see any entrances or exits. Observation for an hour did not reveal the owner.

user posted image

Comments

26.02.2010 0:44, Bad Den

There's a spider web visible on the left. Perhaps there was a mass flight and they were crammed into the trap?

26.02.2010 1:07, Egorus

If you "click" on the original photo-we get to the gallery-choose the original
size of 1600x1200x - you can clearly see the web on the right. Although both the left and
right webs are "not strong", they could be stretched later, from the mass to
the trunk.
Maybe there is a mushroom growth covered with juice...?
Likes: 1

27.02.2010 0:51, PVOzerski

http://books.google.ru/books?id=FZLVrauq0Z...egation&f=false

Isn't that it?

In general, there is such a fly, Atherix ibis, close to ragionids, in which females form similar clusters over water bodies during oviposition (their larvae are aquatic), and then die off and stay like this.

This post was edited by PVOzerski - 02/27/2010 00: 57
Likes: 10

27.02.2010 1:13, Papaver

An interesting book. Thank you.

27.02.2010 18:47, silber2004

Thank you very much, my curiosity is finally satisfied.

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