Rosa rose
(For a dichotomous table for galls on Rosa by Hans Roskam click here)Dichotomous table for leafminers
1a small blotch with a round excision: Incurvaria masculella
1b blotch or tentiform mine: Coptotriche angusticollella
1c corridor, more or less widened towards the end => 2
1d fleck mine => 6
1e galls, etc. => Tables for all parasites per species
Dichotomous table for leafminers
1a small blotch with a round excision: Incurvaria masculella
1b blotch or tentiform mine: Coptotriche angusticollella
1c corridor, more or less widened towards the end => 2
1d fleck mine => 6
1e galls, etc. => Tables for all parasites per species
2a mine upper-surface, greenish in transparancy; in the first part of the corridor frass in two rows; no egg shell at the begin; larva a maggot: Agromyza idaeiana
2b mine full depth, whitish in transparancy; frass in a central line; at the start of the corridor an egg shell; larva with chitinised head => 3
3a first section of the mine strongly contorted; larva lies venter-upwards in the mine => 4
3b gallery weakly contorted or not at all; larve venter-downwards => 5
4a gallery gradually widening into an elongate blotch; larva with dark head; lowland species: Ectoedemia angulifasciella
4b gallery narrow, abruptly widening into a roundish blotch; larva with pale brown head; mountain species: Ectoedemia rosae
5a first part of the corridor entirely filled with green frass: Stigmella anomalella
5b first part of the corridor with the frass in a narrow, black, central line, leaving clear margins at either side: Stigmella centifoliella
6a spatulate or tubular leaf case: Coleophora gryphipennella
6b lobe case => 7
7a case brown; mouth angle 0°-10°: Coleophora violacea
7b case mostly whitish; mouth angle 30°-50°: Coleophora potentillae
Not included in the key: Ectoedemia rosae; Apterona gracilis; Fenusa ewaldi; Stigmella rolandi, spinosissimae.