Hydrocotyle marsh pennywort, white-rot

Dichotomous table for leafminers

1a rather strongly branched corridor, branches radiating from the point of attachment of the petiole; mine starts with a very fine lower-surface corridor: Liriomyza strigata

1b corridor not or little branched => 2

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

2a larva: anterior and posterior spiracle with 6 and 3 papillae, respectively: Liriomyza trifolii

2b anterior and posterior spiracle with 7-9 and 7-12 papillae, respectively: Liriomyza bryoniae

mod 9.x.2017