Nesting in bark – the peculiar life history of the rare boreoalpine osmiine bee Osmia (Melanosmia) nigriventris (Hymenoptera, Megachilidae)


	26, 27) Females of Osmia nigriventris collecting pollen on Rhododendron ferrugineum (left, photo H. Wiesbauer) and sucking nectar on Rubus (right, photo S. Kühne). 28) Female mandible of Osmia nigriventris. 29) Female mandible of Osmia inermis.

Part of: Müller A, Prosi R, Praz C, Richter H (2019) Nesting in bark – the peculiar life history of the rare boreoalpine osmiine bee Osmia (Melanosmia) nigriventris (Hymenoptera, Megachilidae). Alpine Entomology 3: 105-119. https://doi.org/10.3897/alpento.3.34409