Distribution areas of some Erebia taxa in the western Alps. Dashed line: outskirt of the Alps, black: rivers and coastline, grey: lakes and sea, RR – river Rhone, RI – river Isère, MS – Mediterranean sea, LG – Lake Geneva, LCo – Lake Constance, LM – Lake Maggiore, LC – Lake Como. 5. Species originating from northern alpine refugia. Red: E. manto mantoides, blue: Erebia oeme. 6. Species originating from southern alpine refugia. Red: E. mnestra, blue: E. euryale adyte. Red dots: E. manto, bubastis morphotype. Distribution data after Willien (1985), Cupedo (1997), Schweizerischer Bund für Naturschutz (1987), Sonderegger (2005), Lafranchis (2014) and Diatheo (2016).