Homogyne, purple colt’s-foot

fam. Asteraceae

1a mine associated with a silken tube at the outside; larva with thoracic feet and a recognisable head => 2

1b mine without a silken tube; larva a maggot => 3

1c galls, etc => 100

2a tube on the ground, covered with dirt: Scrobipalpula psilella

2b tube higher in the vegetation: Scrobipalpula diffluella

3a clear corridor, without conspicuous feeding lines: Phytomyza homogyneae

3b corridor, but large sections widened to a blotch; feeding lines very conspicuous: Acidia cognata

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 Triozidae: Trioza thomasii

107 – rust fungi

107a Pucciniaceae: Puccinia conglomerata; Uromyces veratri

109 – powdery and downy mildews

109a Erysiphaceae: Golovinomyces cichoracearum

110 – other causers

110a Fungi, Synchytriaceae: Synchytrium vulgatum

10/01/2016