Cytisus broom
Incl. Chamaecytisus, Chronanthus, Sarothamnus, Spartocytisus.
(For a dichotomous table for galls on Cytisus by Hans Roskam click here)
Dichotomous table for leafminers
1a the larva mines the wall of a pod: Bruchidius villosus
1b the larva lives in a case, makes fleck mines => 2
1c the larva lives in the mine, makes a corridor or blotch => 5
1d galls, etc => Tables for all parasites per species
Dichotomous table for leafminers
1a the larva mines the wall of a pod: Bruchidius villosus
1b the larva lives in a case, makes fleck mines => 2
1c the larva lives in the mine, makes a corridor or blotch => 5
1d galls, etc => Tables for all parasites per species
2a lobe case => 3
2b composite leaf case: Coleophora calycotomella
3a mouth angle 90°; case stand perpendicularly on the leaf: Coleophora saturatella and parthenogenella
3b mouth angle 45°; case obliquely on the leaf => 4
4a behind the mouth a number of short rings: Coleophora colutella
4b no such rings: Coleophora trifariella
5a mine contains little or no frass => 6
5b mine contains a substantial amount of frass => 8
6a larva mines between spun leaves => 7
6b larva in a stellate blotch in the leaf centre: Micrurapteryx kollariella
7a larva darkly coloured: Aproaerema anthyllidella
7b larva pale: Syncopacma cincticulella
8a tentiform mine => 9
8b mine not tentiform, leaf not contracted => 12
9a mine upper-surface => 10
9b mine not described, on Cytisus villosus in Sardinia: Phyllonorycter cytisus
10a mine on Spartocytisus filipes, Spain, Canary Islands: Phyllonorycter spartocytisi
10b mine on Cytisus spp. => 11
11a on Cytisus purgans: West Mediterranean species Phyllonorycter purgantella
11b on Cytisus villosus; Western Mediterranean species: Phyllonorycter triflorella
11c on Cytisus procumbens, scoparius; Western European species: Phyllonorycter staintoniella
12a mine, at least partly, a gallery => 13
12b mine a complete blotch => 14
13a mine starts as gallery running along the leaf margin, then turning into a narrow blotch above the midrib: Agromyza johannae
13b a gallery from start to end, running freely through the leaf: Phytomyza cytisi
14a frass as a thick black mass in the centre of the mine; here eventually a cocoon is made and pupation takes place: Oryxolaemus flavifemoratus
14b frass more diffuse, in vague concentric arcs; pupation external: Leucoptera coronillae
Not included in the key: Leucoptera cytisiphagella, heringella, laburnella, zanclaeella; Phyllonorycter cytisella, cytisifoliae, estrela, eugregori.