Thread subject: Diptera.info :: Structures on leaf veins of Betula

Posted by Thomas Brand on 04-06-2015 05:11
#1
Hi,

at the underside of a leaf of Betula pendula (birch) I found a structure, which I cannot determine. Any idea?

Germany, Hessen, Grunberg, 2015-06-03
Edited by Thomas Brand on 08-06-2015 09:44

Posted by Thomas Brand on 08-06-2015 09:50
#2
Hi, In the meantime it is obvious, that thes were eggs of a sawfly. There is a big number of possible species, it might be Croesus septentrionalis.

Thanks for any comment
Thomas

Posted by Thomas Brand on 08-06-2015 09:50
#3
photo