Plant Parasites of Europe

leafminers, galls and fungi


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

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.

Tables for all parasites per species

Last modified 7.iii.2020