Chondrilla skeletonweed, gum succory, hogbite, devil’s grass, nakedweed
(For a dichotomous table for galls on Chondrilla by Hans Roskam click here)Dichotomous table for leafminers
1a mine full depth; larva with chitinised head => 2
1b mine upper- or lower-surface; larva a maggot => 3
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; larva a maggot => 3
1c galls, etc => Tables for all parasites per species
2a mine tiny; larva with thoracic feet; older larvae live free among spun leaves: Cnephasia stephensiana
2b mine large; larva without feet, mines all its life: Orthochaetes setiger
3a min in and/or on top of the midrib, with short branches, without frass: Ophiomyia pulicaria
3b mine winds freely through the leaf, independent of the midrib; frass obvious, in isolated grains: Chromatomyia cf. syngenesiae