Linum, flax

fam. Linaceae

1a fleck mine; the larve mines the leaf from the outside => 2

1b the larva lines from the inside => 4

1c galls, etc => 100

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

100a Nematoda => 101

100b Acari => 102

100c Coleoptera => 103

100e Diptera => 104

100f Hemiptera => 105

100d Hymenoptera => 106

100g rust fungi => 107

100h smut fungi => 108

100i powdery and downy mildews => 109

100j other causers => 110

101 – Nematoda

101a Anguinidae: Ditylenchus dipsaci

101b Meloidogynidae: Meloidogyne hapla

102 – Acari

102a Eriophyidae: Aceria lini

104 – Diptera

104a Agromyzidae: Napomyza lateralis

104b Cecidomyiidae: Contarinia lini; Dasineura sampaina

106 – Hymenoptera

106a Tenthredinidae: Rhogogaster chambersi

107 – rust fungi

107a Melampsoraceae: Melampsora lini, , liniperda

108 – smut fungi

108a Entylomataceae: Entyloma lini

109 – powdery and downy mildews

109a Erysiphaceae: Golovinomyces orontii; Leveillula taurica; Podosphaera lini

109b Peronosporaceae: Peronospora lini