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Nieuwe en verdwenen vlinders

, : Nieuwe en verdwenen vlinders. Vlindersnovember; ): 21-22

In the Netherlands, Maculinea alcon only occurred on the foodplant Gentiana pneumonanthe. In 1942, when the butterfly was found in the coastal dunes on Gentiana cruciata, it was described as a new subspecies Maculinea alcon arenaria. International research during the last decades revealed that in many European countries, the Maculinea species using Gentiana cruciata as a foodplant should be considered as Maculinea rebeli. This opened the possibility that the Dutch subspecies of the coastal dunes was in fact a subspecies of M. rebeli, so adding a new species to the list of Dutch butterflies. However, the European project MACMAN has shown that there is in fact no genetic difference between M. alcon and M. rebeli, so all of these butterflies are M. alcon. On the other hand, it recently became clear that the European Wood Whites were in fact two species: Leptidea sinapis and L. reali. Research in the collections of Dutch Wood Whites showed that L. reali was only present at one location in the south of Limburg between 1951 and 1958. After this period, only a few vagrants have been seen. Since 1992, L. sinapis has established itself near Maastricht, and all recent Wood Whites belong to this species.


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