Neslia ball mustard
(For a dichotomous table for galls on Neslia 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 => 4
3b no prolegs; larvae mine all their life => 5
4a larva light coloured; older larvae live under the leaf: Plutella xylostella
4b larva dark coloured; older larvae between spun leaves: Cnephasia incertana
5a larva with thoracic legs: Phyllotreta nemorum
5b larva without legs: Ceutorhynchus minutus