Laserpitium sermountain

Dichotomous table for leafminers

1a mine full depth; larva with sclerotised head; older larvae live free among spun leaves: Agonopterix rotundella

1b mine upper- or lower-surface; larva, a maggot, mines all its life => 2

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

2a mine interparenchymatous, yellowish green, looks like a fungal disease: Phytomyza heracleana (occurrence on this hostplant doubtful)

2b mine not interparenchymatous => 3

3a corridor, widening, but not forming a blotch: Phytomyza latifolii

3b primary or secondary blotch => 4

4a short corridor near the leaf margin, quickly widening into (and often overrun by) a small blotch between two side veins: Phytomyza zarzyckii

4b primary blotch => 5

5a only primary feeding lines recognisable: Phytomyza angelicae

5b both primary and secondary feeding lines apparent => 6

6a very common species: Euleia heraclei

6b rare species: Cryptaciura rotundiventris

mod 9.x.2017