Adults have been recorded feeding on flower nectar of Centaurea jacea.
Centaurea | Centaurea nigra | Centaurea scabiosa | Centaurea jacea | Centaurea maculosa | Mined leaf of ''Centaurea nigra | Leaf of ''Centaurea scabiosa | Centaurea montana | Centaurea iberica | Centaurea diffusa | Centaurea cineraria | A shoot of ''Centaurea nigra |
The adults feed on nectar and pollen (mainly on Valeriana officinalis, Geranium sylvaticum, Centaurea jacea, Cirsium palustre, Epilobium angustifolium, etc), with preference for blue flowers.
They suck nectar of the preferred blue violet flowers, such as on field scabious (Knautia arvensis), Dove Pincushion Flower (Scabiosa columbaria), meadow knapweed (Centaurea jacea), panicle knapweed (Centaurea stoebe), creeping thistle (Cirsium arvense), Bulbous thistle (Cirsium tuberosum) and ring thistle (Carduus).