Lotus birdsfoot-trefoil
Incl. Tetragonolobus
Dichotomous table for leafminers
1a blotch, without initial corridor => 2
1b corridor from start to end => 4
1c corridor that suddenly widens into a clear blotch => 6
1d tentiform mine => 10
1d fleck mine => 11
1e galls, etc => Tables for all parasites per species
2a blotch large, containing abundant frass; larva in the mine until close to pupation: Leucoptera lotella
2b blotch generally small with little or no frass; after a short time the larvae start living between spun leaves => 3
3a larva slate grey, anteriorly a white dorsal line: Aproaerema anthyllidella
3b larva yellow with red transverse bands: Syncopacma taeniolella
4a corridor full depth; frass in a central line: Coleophora discordella (beginmijn)
4b corridor upper- or lower-surface; frass different => 5
5a frass in a broad green central band, minute black grains at either side: Liriomyza congesta
5b frass in isolated black grains, no green central band: Chromatomyia horticicola
6a larva a maggot; mine hook-shaped, blotch part situated over the midrib: Agromyza nana
6b larva with chitinised head; mine not hook-shaped, positioned differently => 7
7a blotch at the leaf margin; there also is the beginning; no egg shell where the mine begins: Coleophora discordella (initial mine)
7b blotch begins near the leaf basis, from there expanding over the leaflet; at the begin a small egg shell => 8
8a Canary Islands, Madeira: Trifurcula ridiculosa
8b species from the European continent => 9
9a pupa usually in the mine; larva: thorax dorsally with at either side 10, 10 and 8 setae, resp.: Trifurcula eurema
9b pupation outside the mine; larva: thorax dorsally with at either side 13, 11 en 9 setae, resp.: Trifurcula cryptella, manygoza
10a the leaflet is completely mined: Phyllonorycter nigrescentella
10b the leaflet in only incompletely mined: Phyllonorycter insignitella
11a larva free, not in a case or tube: Polyommatus icarus
11b larva in a silken tube, into which it withdraws during feeding pauses => 12
11c larva in a transportable case => 13
12a larva greyish-green with whitish length lines: Scythris picaepennis
12b larva dark purple with whitish transverse bands: Scythris siccella
13a case helicoidal; hole in the mine not precisely round: Apterona helicoidella (northern Europa) & helicinella (south Europe)
13b case tubular; hole precisely round => 14
14a pistol case, entirely covered by a white pallium: Coleophora spumosella
14b lobe case => 15
14b composite leaf case => 16
15a case dorsoventrally compressed: Coleophora festivella
15b case different: Coleophora colutella
16a species from the Canary Islands: Coleophora loti
16b soorten from the European continent =>17
17a case laterally compressed, consisting of a few large leaf frafments: Coleophora squamella
17b case compressed only near the end, regular outline: Coleophora discordella
Not included in the key: Cnephasia spec.; Coleophora acrisella (occurrence on this plant needs confirmation).