Anthoxanthum, vernal-grass

fam. Poaceae

1a fleck mine, larva mines from a case: Coleophora lixella

1b corridor or blotch, larva within the mine => 2

1c galls, etc => 100

2a larva with chitinised head => 3

2b larva a maggot => 5

3a larva widest in the thorax; prosternum with a sclerotised plate => 4

3b larve widest in the abdomen; no prosternal plate present: Cosmopterix orichalcea

4a larva : head almost colourless; mountain species: Elachista dimicatella

4b head pale brown; lowland species: Elachista humilis

5a puparium in the mine => 6

5b pupation outside the mine: Liriomyza flaveola

6a frass in rather widely spaced grains; puparium orange-brown, front spiracula penetrating the epidermis: Chromatomyia nigra

6b frass in greenish swaths; puparium metallic black, front spiracula not penetrating: Cerodontha incisa

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

101 – Nematoda

101a Anguinidae: Ditylenchus dipsaci; Subanguina radicicola

102 – Acari

102a Eriophyidae: Aceria tenuis

104 – Diptera

104a Chloropidae: Oscinella frit, nitidissima

107 – rust fungi

107b Pucciniaceae: Puccinia anthoxanthina, borealis, coronata, graminis, sardonensis, striiformis

108 – smut fungi

108a Georgefischeriaceae: Jamesdicksonia dactylidis

108b Tilletiaceae: Tilletia anthoxanthi

108c Urocystidaceae: Urocystis roivainenii

108d Ustilaginaceae: Ustilago striiformis

109 – powdery and downy mildews

109a Erysiphaceae: Blumeria graminis

110 – other causers

110a Fungi, Ceratobasidiaceae: Ceratorhiza rhizodes

110b Fungi, Clavicipitaceae: Claviceps purpurea; Epichlo√ę tyhpina

Not included in the key: Coleophora ornatipennella.

29/04/2017