Bellis daisy
(For a dichotomous table for galls on Bellis by Hans Roskam click here)Dichotomous table for leafminers
1a larva in the midrib, from there excursions into the blade: Napomyza bellidis
1b blotch, possibly with a short initial corridor, usually overrun by the blotch => 2
1c corridor, more or less broadened towards the end => 3
1d fleck mine: Coleophora ramosella
1e mine small, of indefinite shape => 10
1f galls, etc => Tables for all parasites per species
Dichotomous table for leafminers
1a larva in the midrib, from there excursions into the blade: Napomyza bellidis
1b blotch, possibly with a short initial corridor, usually overrun by the blotch => 2
1c corridor, more or less broadened towards the end => 3
1d fleck mine: Coleophora ramosella
1e mine small, of indefinite shape => 10
1f galls, etc => Tables for all parasites per species
2a mine contains no frass and is hardly larger than the puparium inside: Hydrellia griseola
2b mine contains frass and is much larger: Calycomyza humeralis
3a corridor full depth; larva with clear, chitinised, head => 4
3b corridor upper-surface; larva a headless maggot => 6
4a corridor starts at the leaf base or the midrib => 5
4b no fixed start position; larva with thoracic feet: Apteropeda orbiculata
5a larva without feet: Orthochaetes insignis
5b larva with thoracic feet: Cnephasia ecullyana
6a main corridor positioned over the midrib, short side branches overlying secondary veins: Liriomyza strigata
6b corridor runs freely through the leaf => 7
7a frass very fine; larva: mandible with 1 tooth Hydrellia griseola
7b frass coarser; mandible with 2 teeth => 8
8a frass in strings: Liriomyza pusilla
8b frass in discrete grains => 9
9a corridor from start to end; larva: rear spiraculum with c. 14 papillae: Phytomyza virgaureae
9b corridor usually widens into a blotch; rear spiraculum with (15-) 18 (-21) papillae: Phytomyza bellidina
10a larva: pinacula colourless (the bases of the setae themselves are black) : Cnephasia incertana
10b pinacula black => 11
11a larva: behind/below the anus a chitinous comb: Cnephasia asseclana
11b anal comb absent: Cnephasia stephensiana
Not included in the key: Liriomyza trifolii; Ophiomyia cunctata.