Publication
Ossiannilsson F. 1942 - Hemipterfynd i Stockholmstrakten. Opuscula entomologica 7(1-2): 28-37.
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Psylla zetterstedti (Thomson, 1877) new combination of Chermes zetterstedti Thomson, 1877 |
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Psylla zetterstedti (Thomson, 1877) new combination of Chermes zetterstedti Thomson, 1877 |
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