Blackstonia, yellow-wort

fam. Gentianaceae

1a mine a full depth blotch; larva with chitinised head: Stenoptilia zophodactylus

1b mine upper- or lower-surface, initially a corridor; larva a maggot: Chromatomyia blackstoniae

1c galls, etc => 100

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 gentianae

109 – powdery and downy mildews

109a Peronosporaceae: Peronospora chlorae

110 – other causers

110a Fungi, Mycosphaerellaceae: Pseudocercospora portilloi

Not included in the key: Chromatomyia horticola.

08/09/2015