Stellaria chickweed
Incl. Myosoton (=Malachium) aquaticum, water chickweed
(For a dichotomous table for galls on Stellaria by Hans Roskam click here)
(For a dichotomous table for galls on Myosoton by Hans Roskam click here)
Dichotomous table for leafminers
1a fleck mine => 2
1b corridor or blotch => 4
1c galls, etc. => Tables for all parasites per species
(For a dichotomous table for galls on Myosoton by Hans Roskam click here)
Dichotomous table for leafminers
1a fleck mine => 2
1b corridor or blotch => 4
1c galls, etc. => Tables for all parasites per species
Dichotomous table for leafminers
1a fleck mine => 2
1b corridor or blotch => 4
1c galls, etc. => Tables for all parasites per species
2a case with a dorsal keel that, already before haflway up, divides into 2 parallel keels: Coleophora lithargyrinella
2b dorsal keel, if at all present, not cleft => 3
3a case c. 6 mm; sharp bend just behind the mouth, mouth angle therefore 30°: Coleophora chalcogrammella
3b case c. 8 mm; case straight, mouth angle 45°: Coleophora solitariella
4a larvae with feet and chitinised head => 5
4b larva a maggot, without feet and (seemingly) without a head => 13
5a mine not unusually small, clearly contracted; larva mines all its life; species of the far southeastern Mediterranean: Cnephasia lineata
5b mines small, not contracted; older larvae ive between spun leaves => 6
6a larvae dark in colour; mines of indefinite shape => 7
6b larvae light in colour (keat partly based on Bland ao, 2002a) => 9
7a larva: pinacula colourless (the bases of the setae themselves are black) : Cnephasia incertana
7b pinacula black => 8
8a larva: behind/below the anus a chitinous comb: Cnephasia asseclana
8b anal comb absent: Cnephasia stephensiana
9a larva: greenish white with 5 faint pink length lines: Caryocolum tricolorella
9b greenish, no pink length lines => 10
10a on Stellaria holostea => 11
10b on Stellaria graminea, media => 12
10c on Stellaria uliginosa: Caryocolum kroesmanniella
11a mining larvae in late autumn; boy pale green: Caryocolum kroesmanniella
11b mining larvae in early spring; yellow-green: Caryocolum blandella
12a lowland species: Caryocolum junctella
12b alpine species: Caryocolum petrophila
13a larva also bores in the upper part of the stem, causing wilting of the top op the plant: Delia echinata
13b larva exclusively in the leaf => 14
14a short gallery that seems to end upon a thick vein: Ophiomyia melandricaulis
14b not so => 15
15a mine a gallery from start to end (but may form a secondary blotch) => 16
15b mine, at least in the end, a primary blotch => 19
16a frass in isolated grains; pupation within the mine, in a, generally lower-surface, pupal chamber: Chromatomyia horticola
16b frass in short strings, pupation external => 17
17a gallery pinnately branched; main and side branches on top of the midrib and lateral veins: Liriomyza strigata
17b gallery hardly branched, its course independent of the venation of the leaf => 18
18aliving larva entirely yellow; species of subtropical regions and greenhouses: Liriomyza trifolii
18b living larvae only posteriorly yellow; species of more temperate regions: Liriomyza bryoniae
19a frass in coarse, blackish green lumps; at he start of the mine one (or more?) white elliptic egg shells are visible => 20
19b frass ot that coarse; no egg shells visible at the start of the mine => 21
20a most of the mine is a blotch: Delia coronariae & Pegomya flavifrons
20b large parts of the mines are a gallery: Pegomya holosteae
21a mine whitish, frass sparingly, in fine black grains: Amauromyza flavifrons
21b mine greenish; frass powdery, in green clouds, mainly along the sides of the mine and in the end of short side branches: Scaptomyza graminum
Not included in the key: Caryocolum alsinella (probably not on Stellaria), Caryocolum proxima, Caryocolum vicinella (probably never as leafminers); Pegomya holosteae; Scaptomyza griseola (doubtful).