Malcolmia virginian stock
Dichotomous table for leafminers
1a pinnately branched gallery, main and secondary branches on top of midrib and side veins: Liriomyza strigata
1b blotch or little, not pinnately branched, gallery; mine not determined by the leaf venation => 2
1c galls, etc => Tables for all parasites per species
2a larvae are maggots; mine entirely or partly upper- or lower-surface: Scaptomyza flava
2b larvae with chitinised head; mine full depth => 3
3a larva with abdominal prolegs => 4
3b no prolegs => 5
4a mines < 1 cm; older larvae live free at the underside of the leaf: Plutella xylostella
4b mines larger: Selania leplastriana
5a larva with thoracic legs: Phyllotreta nemorum
5b larva without legs: Ceutorhynchus minutus