Hyoscyamus, henbane

fam. Solanaceae

1a one or more short galleries radiating from the base of the leaf or rhe midrib: Psylliodes hyoscyami

1b mine otherwise => 2

1c galls, etc => 100

2b gallery => 3

2a large blotch => 5

3a frass in well-separated grains; puparium min the mine, in a, usually lower-surface, pupal chamber: Chromatomyia horticola

3b frass in strings; pupation outside the mine => 4

4a corridor pinnately branched; main branch overlying the midrib Liriomyza strigata

4b corridor not pinnate, freely winding through the leaf: Liriomyza bryoniae

5a at the start of the mine a lower-surface group of elliptic egg shels; larva a maggot: Pegomya hyoscyami

5b no egg shells; larvae with well-visible feet and head => 6

6a the blotch contains appreciable quantities of frass: Phthorimaea operculella

6b blotch (almost) without frass => 7

7a silk is deposited within the mine causing it to contract or pucker: Cnephasia lineata

7b mine flat => 8

8a larval green: Microlechia chretieni

8b larval brown (?): Scrobipalpa ergasima

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 Heteroderidae: Globodera rostochiensis

101c Meloidogynidae: Meloidogyne hapla

109 – powdery and downy mildews

109a Erysiphaceae: Golovinomyces hyoscyami

109b Peronosporaceae: Peronospora hyoscyami

110 – other causers

110a Fungi, Synchytriaceae: Synchytrium endobioticum

20/02/2017