Onobrychis, sainfoin

fam. Fabaceae

1a fleck mine; larva mines from a case: Coleophora vulpecula

1b corridor or blotch => 2

1c galls, etc => 100

2a larva a maggot; mine upper- or lower-surface => 3

2b larva with chitinised head; mine full depth => 4

3a corridor from start to end; frass in a broad green band: Liriomyza congesta

3b corridor, widening into a blotch over the midrib; frass in the the blotch in a few black lumps: Agromyza nana

4a blotch, not unusually small, with much frass, larva mines all its life: Leucoptera onobrychidella

4b small corridor or blotch with little or no frass; older larvae live free among spun leaves => 5

5a larva with whitish markings on the thorax: Aproaerema anthyllidella

5b no whitish markings => 6

6a pinacula colourless (though the bases of the setae are black): Cnephasia incertana

6b pinacula black: Cnephasia asseclana

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

102 – Acari

102a Eriophyidae: Aculus longifilis

103 – Coleoptera

103a Apionidae: Hemitrichapion reflexum

104 – Diptera

104a Cecidomyiidae: Bremiola onobrychidis; Contarinia onobrychidis; Dasineura floralis

105 – Hemiptera

105a Asterolecaniidae: Planchonia arabidis

106 – Hymenoptera

106a Cynipidae: Aylax onobrychidis

107 – rust fungi

107a Pucciniaceae: Uromyces onobrychidis

109 – powdery and downy mildews

109a Erysiphaceae: Erysiphe pisi var. pisi, trifoliorum; Leveillula papilionacearum

109b Peronosporaceae: Peronospora ruegeriae

110 – other causers

110a Bacteria, Rhizobiaceae: Rhizobium leguminosarum

Not included in the key: Coleophora onobrychiella, ravillella; Liriomyza cicerina

05/12/2016