Daphne mezereon

Dichotomous table for leafminers

1a mine small, verry irregular in shape; the larva makes several mines; the first begins at an egg shell, the next ones at a small round hole (rarely on this hostplant): Prays fraxinella

1b mine neither small nor strikingly irregular; mine does not begin at a visible egg or a hole => 2

1c galls, etc => Tables for all parasites per species

2a larva a maggot; vacated mines have an exit slit in the upper epidermis: Liriomyza approximata

2b larva with head and feet; vacated mines have a slit in the leaf margin => 3

3a on Daphne alpina, cneorum, striata: Phyllobrostis hartmanni

3b on Daphne gnidium => 4

4a final mine a corridor; frass black: Phyllobrostis daphneella

4b final mine a large blotch; frass brown: Phyllobrostis fregenella

mod 9.x.2017