Calepina
(For a dichotomous table for galls on Calepina by Hans Roskam click here)
Dichotomous table for leafminers
1a mine full depth; larva with chitinised head => 2
1b mine upper- or lower-surface (sometimes full depth in places); larva a maggot => 4
1c galls, etc => Tables for all parasites per species
Dichotomous table for leafminers
1a mine full depth; larva with chitinised head => 2
1b mine upper- or lower-surface (sometimes full depth in places); larva a maggot => 4
1c galls, etc => Tables for all parasites per species
2a small blotch, < 1 cm; older larvae live free: Plutella xylostella
2b mine > 1 cm, corridor or blotch; larvae remains in the mine till pupation => 3
3a larva without feet; mine an untidy corridor: Ceutorhynchus minutus
3b larva with thoracic feet; a corridor, ending blotchy: Phyllotreta nemorum
4a corridor from start to end => 5
4b irregular blotch, prededed by a narrow corridor (may be overrun later) => 6
5a broad, pinnately branched corridor, main branch overlying the midrib; frass in strings: Liriomyza strigata
5b corridor little branched, not pinnate, not associated with the midrib; frass in discrete grains: Chromatomyia horticola
6a frass in thread fragments; mine in May-June: Liriomyza xanthocera
6b frass powdery, in blackish-green clouds; mine in May-October: Scaptomyza flava