Terellia tussilaginis (Fabricius, 1775)
the larva develops in a hardly modfied achene. Its presence is recognisable by a tiny hole near the upper end, and a much larger hole near the base. The larva is solitary and pupates within the achene.
Only rarely on Cirsium. The reference to Centaurea jacea by Tóth is less probable.
Cerajocera, Orellia tussilaginis.
Baugnée (2006a), Dauphin & Aniotbehere (1997a), Lutovinovas (2014a), Merz & Kofler (2008a), Redfern & Shirley (2011a), Smit (2010a), Spooner & Bowdrey (2012a), Tóth (1969a), White (1988a).