Figures 32-34 from: 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

Figures 32-34 Distribution of Osmianigriventris in 32) the Palaearctic, 33) the Nearctic and 34) Central Europe. For Central Europe, records before 2000 are given in black, those from 2000 to the present in yellow. See Suppl. material 2 for a complete list of all distributional data. Made with Natural Earth (www.naturalearthdata.com).