Habitats of Osmia nigriventris in the Swiss Alps. 1, 2) Larch-meadow forest near Brienz/Grisons with nesting site - a small piece of larch bark lying on the ground (left). 3) Larch-meadow forest near Schmitten/Grisons. 4) Open larch forest near Blatten (Lötschen)/Valais. 5) Windfall near Curaglia/Grisons. 6) Windfall near Pfäfers/St Gallen.

 
 
  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