Thread subject: Diptera.info :: Leaf miner On Crataegus sp.

Posted by Pentti Ketola on 10-03-2022 12:13
#1

Hi,
ID possible?
Photo on Finland Kokkola 11 Sep. 2017

I photographed this leaf mine on a Crataegus sp.
Thank you in advance for any help in identification,
Pentti