-
a Taxa reviewed in this study; other data are taken from the literature (Rollier 1910; Kehrer 1922; Stehlin 1922; Baumberger 1927; Helbing 1928; Erni and Ketelborn 1948; Viret and Zapfe 1951; Engesser 1982; Engesser and Mayo 1987; Mödden 1993; Engesser and Mödden 1997; Mödden and Vianey-Liaud 1997; Emery 2004; Emery et al. 2007)