Erucastrum dogmustard
(For a dichotomous table for galls on Erucastrum by Hans Roskam click here)
Dichotomous table for leafminers
1a larva a maggot; mine partly or entirely upper- or lower-surface => 2
1b larva with chitinised head; mine full depth => 3
1c galls, etc => Tables for all parasites per species
Dichotomous table for leafminers
1a larva a maggot; mine partly or entirely upper- or lower-surface => 2
1b larva with chitinised head; mine full depth => 3
1c galls, etc => Tables for all parasites per species
2a frass powdery, in dark green “clouds” in corners of the mine, often visibly only after the mine has been opened: Scaptomyza flava
2b frass in black strings: Liriomyza xanthocera
3a larva with prolegs; older larvae live free at the underside of the leaf: Plutella xylostella
3b no prolegs; larvae mine all their life => 4
4a larva with thoracic legs: Phyllotreta nemorum
4b larva without legs: Ceutorhynchus minutus