Posted by Oriolus on 20-11-2021 10:48
#1
Could this be the mine of Phytomyza spondylii alternative Phytomyza pastinacae? It is probably impossible to distinguish those species on the basis of leaf mines.On Heracleum sphondylium, 10.10.2021, old park, south of Uppsala, Sweden.
Thank you in advance for any help in identification,
Adam