Osmia (Allosmia) bischoffi Atanassov, 1938

Polylectic, pollen sources include Fabaceae, Asteraceae (Cichorioideae), Convolvulaceae, Brassicaceae, Caryophyllaceae, Dipsacaceae and monocots (A. Müller, unpublished, based on 18 pollen samples from 6 different localities).