Insects Feeding
on these Plants:
____________
Centaurea spp. (Knapweed) [Asteraceae]
(Observations are from Hoffman, Marshall)
Diptera (Flies)
Tephritidae: Urophora quadrifasciata [larvae form galls on stems, intro. into N. America from Europe as biocontrol agent] Msh2006
Heteroptera (True Bugs)
Lygaeidae: Megalonotus sabulicola [eats seeds, preferred host plants, introduced into N. America from Europe] Hof1996