Phillyrea mock privet
Dichotomous table for leafminers
1a larvae mine all their life => 2
1b older larvae live free => 5
1c galls, etc => Tables for all parasites per species
2a pupation within the mine => 3
2b pupation outside the mine => 4
3a larva a maggot; mine finally a primary blotch: Phytomyza phillyreae
3b larva with thoracic feet and chitinised head; mine finally a secondary blotch: Metriochroa latifoliella
4a large blotch with copious frass: Silliana lhommei
4b narrow corridor almost without frass: Cacochroa permixtella
5a young larva makes an epidermal, silvery corridor, widening into a weakly contrated tentiform mine: Caloptilia cucullipennella
5b you larvae live differently => 6
6a young larvae in a, usually communal, blotch; later they live in a leaf roll: Gracillaria syringella
6b young larvae make full depth corridors, or blotches, or a combination of the two; later they cause window feeding: Prays oleae