Lycium duke of Argyll’s tea-plant
Dichotomous table for leafminers
1a mine full depth; larva with thoracic feet and a sclerotised head => 2>
1b mine upper- or lower-surface, greenish in transparency; larva a maggot => 4
1c galls, etc => Tables for all parasites per species
2a larva mines, living between two spun leaves: Scrobipalpa portosanctana
2b the larve mines from a silken tube, spun alongside the plant: Scythris buszkoi
2c the larve mines from within => 3
3a larva: green, head black: Microlechia chretieni
3b practically colourless, head light brown: Tuta absoluta
4a large, primary blotch: Pegomya hyoscyami
4b corridor, perhaps partly a secondary blotch => 5
5a pupation within the mine in a, usually lower-surface, pupal chamber; frass in grains: Chromatomyia horticola
5b pupation outside the mine; frass in strings: Liriomyza bryoniae