Oligolectic on Hippocrepis (Fabaceae) (Ducke, 1900).
Rust et al (2004) cite Lotus corniculatus (Fabaceae) as a pollen forage source and Pesenko in Banaszak (1995) state that this is a narrowly oligolectic species, specialising in Lotus (Fabaceae)(Amiet et al., 2004; Banaszak and Romasenko, 2001; Benoist, 1931; Westrich, 1989; A. Müller, unpublished, based on 2 pollen samples from 2 different localities and on field observations).