Sphenella marginata (Fallén, 1814)
on Jacobaea, Senecio, Tephroseris
Senecio vulgaris, Hoorn (NH) © Koen van Zoest
several capitula in an inflorescence were infested
gall
The flower head is on all sides widened at is base, resulting in a cone shape; the bracts are widened. In the flower head one white maggot, or a brown puparium.
hostplants
Asteraceae, narrowly oligophagous
Jacobaea alpina, aquatica, erucifolia, gnaphalioides, paludosa, vulgaris; Senecio doriiformis, gallicus subsp. coronopifolius, incrassatus, inaequidens, leucanthemifolius subsp. vernalis, ovatus, squalidus subsp. rupestris, sylvaticus, viscosus, vulgaris; Tephroseris crispa.
synonyms
Tephritis marginata.
references
Baugnée (2006a), Bjeliš (2007a), Buhr (1965a), Coulianos & Holmåsen (1991a), Dauphin & Aniotsbehere (1997a), Dirlbeck & Dirlbeck (1994a), Ebejer (2015a), Gharajedaghi, Khaghaninia & Mohamadzade Namin (2011a), Houard (1909a), Khaghaninia & Gharajedaghi (2012a), Kieffer (1891a, 1895b), Kütük, Yaran, Torbali, ao (2019a), Merz (1992a), Mohamadzade Namin & Nozari (2011a, 2012a), Mohamadzade Namin, Nozari & Najarpoor (2010a), Neuenschwander & Freidberg (1983a), Niblett (1940a), Penado, Smit, Franquinho Aguiar, ao (2020a), Redfern & Shirley (2011a), Smit (2006a, 2010a), Soltanizadeh, Saghaei & Ostovan (2015a), Spooner & Bowdrey (2012a), Tomasi (2014a), Wetzel, Skuhravý, Camprag, ao (1984a), White (1988a).