Publication
Slingerland M. V. 1892 - The pear tree psylla. Bulletin of the Cornell University Agricultural Experiment Station 44: 161-186.
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Psylla simulans Foerster, 1848 synonym of Psylla pyricola Foerster, 1848 |
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Psylla simulans Foerster, 1848 synonym of Psylla pyricola Foerster, 1848 |
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