Hypothetical distribution patterns of the mountain ringlet Erebia epiphron in western Europe during the last glacial maximum. Grey areas show mountain areas above 1000 m asl. Hatched areas: Western major group, dotted areas: eastern major group. Redrawn from Schmitt et al. .
Schmitt Frontiers in Zoology 2007 4:11 doi:10.1186/1742-9994-4-11