Aegopodium, goutweed

fam. Apiaceae

1a mine full depth, transparant, small (but sometimes many together); larva with thoracic feet and a sclerotised head; older larvae only with head and thorax inserted in the mine, or entirely free => 2

1b mine upper- or lower-surface, greenish in transparancy, larger, corridor or blotch; larva a maggot => 5

1c galls, etc => 100

2a many mines together in axils of the major veins: Epermenia chaerophyllella

2b mines single => 3

3a larva: pinacula colourless (only the bases of the setae black): Cnephasia incertana

3b pinacula black => 4

4a larva: segment 10 with an anal comb: Cnephasia asseclana

4b no anal comb: Cnephasia stephensiana

5ablotch, usually containing several larvae (rare on this hostplant) => 6

5bcorridor, may be considerably widened in the end => 8

6alarva big, coarse; cephalic skeleton with an anteriorly directed projection; rear spiraculum with 3 papillae: Euleia heraclei (common species) or Cryptaciura rotundventris (rare species)

6blarva small, tender; cephalic skeleton without such a projection; rear spiraculum with ca. 20 papillae => 7

7alarva: above the entrance to the buccal cavity a dark band with fine warts (species from N and C Europe): Phytomyza aegopodii

7bno such band: Phytomyza chaerophylli

8amine starts with a quite faint lower-surface corridor (rare on this hostplant): Phytomyza angelicastri

8bmine upper-surface throughout => 9

9a corridor following the leaf margin for long ends; frass grains big, very numerous, blackish green, often in pearl strings: Phytomyza obscurella

9bcorridor not associated with leaf margin; frass grains smaller, less numerous, not connected => 10

10aspring mine (April – early June): Phytomyza pubicornis

10bsummer mine (after mid June): Phytomyza podagrariae

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: Epitrimerus aegopodii

104 – Diptera

104a Cecidomyiidae: Macrolabis podagrariae

105 – Hemiptera

105a Aphididae: Aphis podagrariae; Aulacorthum aegopodii; Semiaphis anthrisci

105b Triozidae: Trioza flavipennis

107 – rust fungi

107a Pucciniaceae: Puccinia aegopodii

109 – powdery and downy mildews

109a Erysiphaceae: Erysiphe heraclei

109b Peronosporaceae: Plasmopara nivea

110 – other causers

110a Fungi, Mycosphaerellaceae: Septoria aegopodii

110b Fungi, Physodermataceae: Physoderma pulposum

110c Fungi, Protomycetaceae: Protomyces macrosporus

110d Fungi, Synchytriaceae: Synchytrium aureum

12/06/2016