Flower-visiting behaviour of Osmia pilicornis: 29–30 Females collecting pollen on flowers of Pulmonaria mollis in the early red stage 31 Female forcefully opening a bud of Pulmonaria obscura 32 Female collecting pollen on brevistylous flower of Pulmonaria mollis 33 Female removing pollen sticking to the bristled proboscis with her forelegs 34 Specialized pollen-harvesting bristles on the galeae of the female proboscis 35 Female collecting pollen on flower of Ajuga reptans 36 Female moving her proboscis back and forth, thereby probably thickening the collected nectar.

 
 
  Part of: Prosi R, Wiesbauer H, Müller A (2016) Distribution, biology and habitat of the rare European osmiine bee species Osmia (Melanosmia) pilicornis (Hymenoptera, Megachilidae, Osmiini). Journal of Hymenoptera Research 52: 1-36. https://doi.org/10.3897/jhr.52.10441