Intertaxon relationships
species
Greater Knapweed
Centaurea scabiosa L.
Orobanche elatior Sutton - Knapweed Broomrape 
Ceratapion austriacum (Wagner, 1904)
Larinus centaurii (Olivier, 1807)
Larinus iaceae (Fabricius, 1775)
Larinus sturnus (Schaller, 1783)
Pseudorchestes cinereus (Fåhraeus, 1843)
Pseudorchestes ermischi (Dieckmann, 1958)