Sanguisorba, burnet

fam. Rosaceae

1a small (< 1 cm) full depth blotch or broad corridor; larvae later live free: Spialia sertorius

1b upper-surface corridor without an egg shell at the beginning; larva a maggot => 2

1c full depth corridor, may be widening into a blotch; frass in a central line; mine begins near a shining egg shell => 3

1d fleck mine => 6

1e galls, etc. => 100

2a in the first part of the mine frass in two rows of fine grains; larva: rear spiraculum with 3 papillae: Agromyza idaeiana

2b frass here almost filling the entire corridor; rear spiraculum with 6 papillae: Agromyza sulfuriceps

3a strongly contorted corridor, widening into a blotch: Ectoedemia angulifasciella

3b corridor neither contorted, nor forming a clear blotch => 4

4a egg usually upper-surface; final part of corridor clearly widened: Stigmella poterii

4b egg generally lower-surface; corridor hardly widened towards the end => 5

5a first third of the corridor entirely filled with greenish frass: Stigmella anomalella

5b frass here in a narrow central line, leaving a clear zone at either side: Stigmella centifoliella

5c mine as 5b; larva unknown: Stigmella thuringiaca

6a larva in a helicoid case; hole in the mine angular: Apterona helicoidella

6b larva in a tubular case; hole neatly round => 7

7a tubular leaf case: Coleophora albicostella

7b lobe case => 8

8a living on the leave’s upper surface: Coleophora violacea

8b on the lower surface: Coleophora potentillae

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

102 – Acari

102a Eriophyidae: Aceria sanguisorbae

104 – Diptera

104a Cecidomyiidae: Dasineura sanguisorbae

105 – Hemiptera

105a Aphididae: Aphis sanguisorbae, sanguisorbae poterii

105b Asterolecaniidae: Planchonia arabidis

105c Triozidae: Bactericera modesta

106 – Hymenoptera

106a Cynipidae: Xenodochus carbonarius

106b Tenthredinidae: Empria testaceipes

107 – rust fungi

107a Pucciniaceae: Phragmidium sanguisorbae

109 – powdery and downy mildews

109a Erysiphaceae: Podosphaera ferruginea

109b Peronosporaceae: Peronospora sanguisorbae

110 – other causers

110a Fungi, Dermateaceae: Leptotrochila sanguisorbae

110b Fungi, Synchytriaceae: Synchytrium aureum

Not included in the key: Coptotriche szoecsi, tantalella; Habroloma triangulare; Stigmella centifoliella, muricatella, rolandi, sanguisorbae; Trachys lichtensteini, scrobiculatus.

26/06/2016