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Clouded Yellow

Thanks to Viv Crump for this fine photo of a Clouded Yellow butterfly, feeding on Buddleia on the threatened RBRGHA allotments……

Clouded Yellow butterfly

The Clouded Yellow (Colias croceus) is predominantly a migratory species, mostly from Southern Europe and Northern Africa, and is known for occasional spectacular mass migrations in some years.  Thanks to Viv for the photo of this intriguing insect.