Euchloe ausonia (NL: Oostelijk marmerwitje / EN: Eastern Dappled White / DE: Östlicher Gesprenkelter Weißling / FR: Piéride de la roquette, Marbré oriental) is a southern Europe and Eurasian butterfly found mostly to the south and east of its almost indistinguishable relative the Western Dappled White. This butterfly is in-separable from the Western Dappled White, Euchloe crameri, except by internal examination or genetic study. The best way of separation is geographical. The current species flies in peninsular Italy and from NE Italy east and south eastwards to Romania and Greece, crameri flies in NW Italy, S France and Spain. It is a common butterfly being encountered in open places hot, dry or damp on many soils. The wingspan is 36–48 mm. In most of its range, there are two generations. Adults are on wing from the beginning of March to the beginning of July. In mountainous and very dry areas, there is only one generation.
Image: Vendicari (IT-SI) - 09/04/2012
© Johan Dierckx
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