Nymphalis xanthomelas : massive migration or sustainable exp

[lepidofrance]

The extraordinary migration of Nymphalis xanthomelas to North-West Europe observed in 2014 has been preceded by the settlement of this species in Scandinavia in 2009-2013 (Finland and South-East Sweden). In July 2014, a large number of Nymphalis xanthomelas were observed in many parts of Scandinavia (including Denmark and southern Norway), North Germany, Netherlands, North Belgium (Flanders) and South-East United Kingdom. The main question that arises : is this a long term settlement or an exceptional annual migration? Only the future will tell us.




Learn more : pdf on the pages :

www.lepido-france.fr/liens/les-pdf-a-decharger/
www.lepido-france.fr/revues/annee-2014-volume-23/

[nomad]

Hi Lepidofrance, for more on this species arriving in the U.K earlier this year, see my thread at

insectnet.proboards.com/thread/5746/scarce-tortoiseshell-nymphalis-xanthomelas-reaches

Peter.