Lavandula, lavender

fam. Lamiaceae

1a fleck mine => 2

1b corridor or blotch; the larve mines from the inside => 5

1c galls, etc => 100

2a the larva mines from a silken web between some leaves: Sophronia humerella

2b the larve mines from a transportable case => 3

3a case irregular, covered with frass grains: Vulcaniella grabowiella

3b case covered with sand grains or leaf fragments => 4

4a opening in the mine precisely circular, surrounded by a narrow fringe of stubbles (bitten off silk threads); larva in a lobe case: Coleophora struella

4b opening not neatly round, not surrounded by stubbles; larva in a helicoidal case: Apterona helicoidella

5a larva a maggot; pupation within the mine in a, usually lower-surface, pupal chamber: Chromatomyia horticola

5b larva with sclerotised head; pupation outside the mine => 6

6a corridor, ending in a clear blotch; larva with thoracic legs: Stephensia cedronellae

6b corridor, hardly widened in the end; larva witout thoracic feet => 7

7a species of the European mainland => 8

7b on L. canariensis, Canary Islands: Trifurcula sanctaecrucis

8a on L. stoechas: Trifurcula stoechadella

8b on L. angustifolia and latifolia: Trifurcula lavandulae

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

104 – Diptera

104a Cecidomyiidae: Asphondylia tavaresi

109 – powdery and downy mildews

109a Erysiphaceae: Leveillula duriaei

03/11/2015