Jaapiella chelidonii Fedotova, 2008
Chelidonium majus, Belgium, prov. Antwerp, Mol, 14.vi.2019 © Carina Van Steenwinkel
infected flower bud
opened gall with young larvae
Chelidonium majus, Denmark © Simon Haarder
cut-out of the same picture
white, later pink, gregarious larvae in the disfigured flower buds.
This species was described from Russia; the observation in Denmark was the first in western Europe.
Gagné & Jaschhof (2014), Haarder, Bruun, Harris & Skuhravá (2016a).