Plant Parasites of Europe

leafminers, galls and fungi

Agrostemma

Agrostemma corncockle

(For a dichotomous table for galls on Agrostemma by Hans Roskam click here)

Dichotomous table for leafminers

1a larva not only mines the leaf disc but also the petiole and stem, that become partly hollowed out and translucent: Delia echinata

1b mine exclusively in the leaf => 2

1c galls, etc => Tables for all parasites per species

2a fleck mine; larva in a tubular silken case: Coleophora corsicella

2b no fleck mine => 3

3a mine small (< 1 cm); larva with thoracic feet and a sclerotised head => 4

3b mine larger; larva a maggot => 5

4a pinacula colourless (only the base of the setae black): Cnephasia incertana

4b pinacula black: Cnephasia asseclana

5a mine whitish with few (fine, black) grains of frass; larva: rear spiraculum blunt with 3 clear, hooklike papillae: Amauromyza flavifrons

5b mine greenish; frass powdery in green clouds, mainly along the margin of the mine and in the end of short side branches; rear spiraculum acute, papillae almost invisible: Scaptomyza graminum

Tables for all parasites per species

Last modified 18.v.2020