Posted by Pentti Ketola on 10-10-2016 10:09
#1
Hi,
Is it possible to tell the species of the fly by its mine on this
Urtica dioica?
Photo 7 Oct. 2016 in Kokkola Finland.
Pentti
Posted by Tony Irwin on 10-10-2016 11:59
#2
I don't think this is a fly mine - it looks more like Lepidoptera or Coleoptera damage.