As you may know, the Powdered Brimstone was originally included on our poster of the butterflies of Corfu because early indications were that it was probably a resident species on the island. See the following link for more information on this story:
https://corfubutterflyconservation.org/species_unconfirmed.php?name=Gonepteryx_farinosa&gen=Gonepteryx&sp=farinosa
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