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Vals heideblauwtje Plebejus idas


Polyommatinae [subfamilie]
Plebejus [genus] (2/2)
idas [soort]

Plebeius idas is a former resident. It disappeared from the Netherlands in 1981 and is classified as 'extinct' on the 2006 Red List. The causes for its demise are unknown, but changes in heathland management may have been responsible, possibly affecting Calluna vulgaris, its larval foodplant. The species flew in one generation in July, and hibernated as an egg. Although it was probably less common at the beginning of the 20th century, the occurrence of the species was often underestimated by being taken for Plebeius argus.



Wynhoff, I., Groenendijk, D., Swaay, C. van, Bosveld, M., Bos, F.