Linum flax
(For a dichotomous table for galls on Linum by Hans Roskam click here)Dichotomous table for leafminers
1a fleck mine; the larve mines the leaf from the outside => 2
1b the larva lines from the inside => 4
1c galls, etc => Tables for all parasites per species
Dichotomous table for leafminers
1a fleck mine; the larve mines the leaf from the outside => 2
1b the larva lines from the inside => 4
1c galls, etc => Tables for all parasites per species
2a larva lives between spun leaves: Syncopacma linella
2b larva lives in a transportable case => 3
3a opening of the mine irregular, in comparison to the size the mine rather large: Apterona helicoidella
3b opening neatly round, relatively small: Coleophora striolatella
4a mine small, of indefinite shape; larvae darkly coloured with obvious feet and head; older larvae live free among spun leaves => 5
4b nu particular small blotch or gallery mines; the larvae are bone-coloured maggots that mine all their life => 6
5a larva: pinacula colourless (the bases of the setae themselves are black) : Cnephasia incertana
5b pinacula black: Cnephasia stephensiana
6a corridor pinnately branched, its main branch overlying the midrib: Liriomyza strigata
6b corridor not or little branched, not pinnate, not associated with the midrib => 7
7a frass, at least partly, in strings; pupation outside the mine: Liriomyza xanthocera
7b frass in grains that are separated by at least their diameter; puparium in the mine, in a, usually lower-surface, pupal chamber: Chromatomyia horticola