1a fleck mine: mine without frass, with an opening that has given access to the larva => 2

1b corridor or blotch => 5

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

2a the larva mines from a silken tube that is attached to the leaf: Scythris siccella

2b the larva mines from a case => 4

4a case composed out of a number of leaf fragments that untidily stick out of the outline: Coleophora colutella

4b case composed of only two leaf fragments that fit well together, giving the case a closed outline: Coleophora vestalella

5a larva with chitinised head => 6

5b larva a maggot => 10

6a larva mines till just before pupation; blotch mine, preceded by a narrow corridor => 7

6b older larve live free on the plant => 8

7a frass in the blotch as one or a few black lumps; on Anthylis cytisoides: Trifurcula anthyllidella

7b frass in the blotch as many, loose, grains; on Anthyllis montana: Trifurcula cryptella

7c frass in the blotch as many, loose, grains; on Anthyllis hermanniae: Trifurcula peloponnesica

8a free living larva among leaves that are sandwiched by spinning: Aproaerema anthyllidella

8b free living larva among loosely spun leaves => 9

9a pinacula colourless (but the base of the setae black): Cnephasia incertana

9b pinacula black: Cnephasia asseclana

10a corridor, may end in a secondary blotch => 11

10b primary blotch, preceded by a not always easily recognisable corridor => 14

11a puparium in the mine, in a, generally lower-surface, pupal chamber: Chromatomyia horticola

11b larva leaves the mine prior to pupation through an exit slit in the epidermis => 12

12a corridor pinnately branched, main axis overlying the midrib: Liriomyza strigata

12b corridor little branched, not associated with the midrib => 13

13a frass in two rows of granules; most of the corridor lower-surface: Phytomyza brischkei

13b frass in pearl chains: Liriomyza bryoniae

13c frass in a green central band; corridor upper-surface: Liriomyza congesta

14a initial corridor partly following the leaf margin => 15

14b initial corridor free from the margin => 16

15a initial corridor long and narrow, abruptly widened into a large blotch that has no association wth the midrib: Phytoliriomyza variegata

15b initial corridor gradually widened into a narrow blotch overlying the midrib: Agromyza nana

16a larva: apex of rear spiraculum dark, globular: Scaptomyza graminum

16b apex of rear spiraculum light coloured, inverse bottle-shaped: Scaptomyza flava