Oligolectic: Asteraceae (eg Centaurea) (Ivanov et al., 2005)
Banaszak & Romasenko (1998) list the following forage sources: Carduus, Cirsium, Centaurea and Onopordon (Asteraceae).
Stanisavljević (2000) states that this is an oligolectic species, most commonly found on the flowers of the species Asteraceae (Carduus, Cirsium, Centaurea, Onopordon).
Reported to visit Medicago sativa (Fabaceae) in Iran (Grace, 2010).
All the species of Lithurgus reported from eastern Turkey are recorded at Centaurea, Carduus, Cirsium, Onopordum and Arctium. (Asteraceae) (Ozbek and Zanden 1994) note that L. chrysurus and L. cornutus also visit Onobrychis (Fabaceae).