Remarkable discovery of the Atlanto-Mediterranean moth Scythris ventosella Chrétien, 1907 at high altitude in the Alps of Valais, Switzerland – a possible relict of the late-glacial steppe-belt fauna? (Lepidoptera, Scythrididae)

The unexpected discovery of Scythris ventosella Chrétien, 1907 in the Alps of Valais, Switzerland is reported. Early stages, life cycle and habitat characteristics are described. The unusual present-day distribution of this species is discussed and it is suggested that the population in the Valais Alps may represent a relict from the late-glacial steppe-belt fauna.