Campiglossa argyrocephala (H Loew, 1844)
on Achillea
gall
The flower head is deformed, in the enlarged receptacle a single white maggot, or a pupa. The topmost leaves are folded into bunch.
host plants
Asteraceae, narrowly monophagous
Achillea ptarmica.
references
Baugnée (2006a), Dauphin & Aniotsbehere (1997a), Redfern & Shirley (2011a), Roskam (2019a), Smit (2010a), Spooner & Bowdrey (2012a), White (1988a).