Cleptoparasitic: Hosts; Unclear, but Blüthgen (1951) suggests Andrena dorsata and Kocourek (1966) reports A. congruens as possible hosts. Enslin (1922), and Stöckhert (1941) also add Andrena ovatula and Halictus maculatus as further possible hosts. The Andrena hosts are summarised by Smit (2018) who also adds A. confinis.