Publication
Riley C. V. 1883 - Hackberry psyllid galls. Canadian Entomologist 15: 157-159.
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Pachypsylla Riley, 1883 |
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Pachypsylla celtidismamma (Riley, 1881) new combination of Psylla celtidismamma Riley, 1881 |
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Pachypsylla Riley, 1883 |
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Pachypsylla celtidismamma (Riley, 1881) new combination of Psylla celtidismamma Riley, 1881 |
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