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silver fir adelges (Adelges nordmannianae, Adelges nuesslini, Chermes nuesslini, Dreyfusia nordmannianae, Dreyfusia nuesslini); silver fir migratory adelges (Adelges nordmannianae, Adelges nuesslini, Chermes nuesslini, Dreyfusia nordmannianae, Dreyfusia nuesslini) |