Dahlia

Dichotomous table for leafminers

1a pinnately branched gallery, main and side branches on top of midrib and side veins: Liriomyza strigata

1b gallery not pinnately branched, running independently of the leaf venation => 2

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

2a pupation within the mine, in a, generally lower-surface, pupal chamber; frass in isolated grains: Chromatomyiia cf syngenesiae

2b pupation outside the mine; frass in strings: Liriomyza bryoniae

Not included in the key: Liriomyza trifolii.

mod 9.x.2017