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A new species of Acyrthosiphon (Homoptera, Aphididae) from Primula in Britain

Acyrthosiphon auriculae sp.n. is described from Primula (garden auricula) in Britain. It is close to the A.malvae group but has only eight chromosomes (2n ‐ ♀). Results from rearing experiments using excised leaf cultures suggest that auriculae has strong host‐plant preferences; it may have originated from a montane region in Europe.