Plant Parasites of Europe

leafminers, galls and fungi

Thesium

Thesium bastard toadflax

(For a dichotomous table for galls on Thesium by Hans Roskam click here)

Dichotomous table for leafminers

1amine shallow (either upper surface of lower surface); a short corridor widening into a blotch; larva remains in the mine till just before pupation: Liriomyza thesii

1bmine a full depth corridor; older larvae living free => 2

1c galls, etc => Tables for all parasites per species

2alarva: yellow, head black: Epermenia insecurella

2b greenish, head light brown: Ochromolopis ictella

2blarva not described: Epermenia pontificella

Tables for all parasites per species

Last modified 21.vi.2020