Coronilla crown vetch

Dichotomous table for leafminers

Incl. Securigera.

1a corridor or blotch => 2

1b fleck mine => 13

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

2a mine full depth; larva with chitinised head => 3

2b mine upper-surface; larva a maggot => 10

3a the larvae mine only briefly, later they live free among spun plant parts => 4

3b the larve mine till shortly before pupation => 8

4a the mines contain silk => 5

4b no silk in the mine => 6

5a larva: behind/below the anus a chitinous comb: Cnephasia asseclana

5b anal comb absent: Cnephasia stephensiana

6a larva whitish, with severel reddish length lines e wittig, een aantal roodachtige lengetelijnen: Syncopacma cincticulella

6b no reddish length lines => 7

7a larva: head black: Aproaerema anthyllidella

7b head brown: Syncopacma vinella

8a corridor widening into a blotch => 9

8b blotch, without a trace of a preceding corridor: Leucoptera lotella

9a transition from galley to blotch abrupt: Trifurcula cryptella

9b transition gradual: Trifurcula ortneri

10a frass in a broad central green band with minute black grains at either side: Liriomyza congesta

10b frass in lumps or thread fragments, no central green band => 11

11a corridor, widening into a blotch => 12

11b corridor from start to end (sometimes merging into a secondary blotch): Liriomyza bryoniae

12a large section of the corridor closely following the leaf margin: Phytoliriomyza variegata

12b corridor (presumably!) independent of the leaf margin: Liriomyza coronillae

13a case helicoidal; opening in the mine not neatly round, relatively large: Apterona helicoidella

13b case more or less straight; opening precisely round, relatively small => 14

14a tubular leaf case => 15

14b sheat case: Coleophora fuscociliella

14c pistol case: Coleophora vicinella

14d composite leaf case: Coleophora sisteronica

14e lobe case: Coleophora colutella

15a case bivalved: Coleophora coronillae

15b case trivalved: Coleophora flaviella

Not included in the key: Agromyza nana; Coleophora acrisella, oriolella (no leafminer), trifariella; Liriomyza strigata.

mod 20.ii.2018