Hibiscus, hibiscus, rosemallow

fam. Malvaceae

1a corridor, sometimes quite broad, overlying midrib and side veins => 2

1b corridor, not associated with leaf venation => 3

1c galls, etc => 100

2a corridor rather narrow, not varying in depth and width: Liriomyza strigata

2b corridor strongly varying in width and depth; especially on top of the midrib sometimes almost a blotch: Liriomyza xanthocera

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

3b pupation outside the mine; frass largely in strings or pearl chains: Liriomyza bryoniae

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

105 – Hemiptera

105a Aphididae: Aphis umbrella

107 – rust fungi

107a Pucciniaceae: Puccinia malvacearum

109 – powdery and downy mildews

109a Erysiphaceae: Leveillula taurica; Podosphaera xanthii

Not included in the key: Liriomyza trifolii.