As this is a cleptoparasitic species, all flower visits will be for nectar only.
Mavromoustakis (1948; 1952, 1954) reports nectaring visits to Mentha longifolia (Lamiaceae); Eryngium creticum (Apiaceae); Tamarix (Tamaricaceae) and Cardopatium (=Broteroa) corymbosum (Asteraceae).