Posted by Pentti Ketola on 11-09-2016 16:35
#1
Hi,
Is it possible to tell the species of the fly by its mine on this
Alnus glutinosa?
Photo 11 Sep. 2016 in Kokkola Finland.
Pentti
Posted by Sundew on 11-09-2016 18:20
#2
Might be
Agromyza alnivora, but there are also other animals (butterflies, beetles...) whose larvae are leaf miners - see the key for mine shapes in Dutch and English
http://www.bladmi.../alnus.htm.
Regards, Sundew
Posted by Paul Beuk on 13-09-2016 08:05
#4
It looks as if the frass is in a single, median line in the mine. That would make it unlikely to be a dipteran mine...