Borago, borage

fam. Boraginaceae

1a mine very small, of indefinite shape = > 2

1b mine not unusually small, of constant shape => 3

1c galls, etc => 100

2a larva: below/behind the anus a chitinous comb: Cnephasia asseclana

2b anal comb absent: Cnephasia stephensiana

3a corridor from start to end: Chromatomyia horticola

3b eventually a large blotch => 2

4a initial corridor both very long and narrow; pupation within the mine; larva with recognisable head: Dialectica scalariella

4b initial corridor different; pupation external; larva a maggot => 5

5a larva solitary (always?): Agromyza myosotidis

5b larvae communal: Agromyza abiens

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

107 – rust fungi

107a Pucciniaceae: Puccinia cerinthes-agropyrina, symphyti-bromorum

108 – smut fungi

108a Entylomataceae: Entyloma boraginis

109 – powdery and downy mildews

109a Erysiphaceae: Golovinomyces cynoglossi

Not included in the key: Delia seideli.

19/10/2016