Phytomyza heterophylli Bland, 1997
Dark brown blotch, begnning near the tip of the leaf usually descending at one side of the midrib only. (Primary?) feeding lines conspicuous. Several larvae in the mine. Pupation external.
Asteraceae, narrowly monophagous
Cirsium helenioides (= heterophyllum).
Larvae from late June to early August.
distribution within Europe
Red-brown, rear spiraculum with 16-18 well-defined papillae in an incomplete ellipse.