# Psylla

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{{Short description|Genus of true bugs}}
{{For|the town of ancient Bithynia in Asia Minor|Psylla (Bithynia)}}
{{Automatic taxobox
| image = Psylla alni male.jpg
| image_caption = ''[Psylla alni](/source/Psylla_alni)''
| taxon = Psylla
| authority = [Geoffroy](/source/%C3%89tienne_Louis_Geoffroy), 1762
| diversity_link = List of Psylla species
| diversity = at least 110 species
| synonyms = * ''Asphagis'' {{Au|Enderlein, 1921}}
* ''[Baeopelma](/source/Baeopelma) syn. nov.''
* ''[Chamaepsylla](/source/Chamaepsylla) syn. nov.''
* ''Psylla (Labyrinthopsylla) syn. nov.''
| synonyms_ref = <ref name = BO&P2021>{{cite journal |title=An updated classification of the jumping plant-lice (Hemiptera: Psylloidea) integrating molecular and morphological evidence |date=2021 |last1=Burckhardt |first1=Daniel |last2=Ouvrard |first2=David |last3=Percy |first3=Diana M. |journal=European Journal of Taxonomy |issue=736 |pages=137–182 |doi=10.5852/ejt.2021.736.1257|doi-access=free }}</ref>
}}
thumb|upright
thumb|''Psylla carpinicola''

'''''Psylla''''' (from the Greek ''psulla'', meaning [flea](/source/flea)) is the [type genus](/source/type_genus) of [sap-sucking insects](/source/Hemiptera) in the family [Psyllidae](/source/Psyllidae).  There are at least 110 described species in ''Psylla''.<ref name=catlife/><ref name=gbif/><ref name=bugref/> Species within the genus feed on various [host](/source/Host_(biology)) plants.

Some agricultural pests, previously placed here, are now in related genera, such as ''[Cacopsylla](/source/Cacopsylla)'' (which includes at least two species harmful to fruit trees); other revised species names include the "Albizia fly" (''[Acizzia](/source/Acizzia) jamatonica'', in the same family) and the laurel fly (''[Trioza alacris](/source/Trioza_alacris)'' in the family [Triozidae](/source/Triozidae)).

== Selected species and hosts ==
* ''[Psylla alni](/source/Psylla_alni)'' feeds on [alder](/source/alder)s: this is the '''type species''' (as ''Chermes alni'' {{Au|Linnaeus, 1758}})
* ''[Psylla apicalis](/source/Psylla_apicalis)'' feeds on [kōwhai](/source/k%C5%8Dwhai) trees<ref name="YueMartoni2019">{{cite journal |last1=Yue |first1=Bi-Song |last2=Martoni |first2=Francesco |last3=Armstrong |first3=Karen |year=2019 |title=Resolving an 87-year-old taxonomical curiosity with the description of ''Psylla frodobagginsi'' sp. nov. (Hemiptera: Sternorrhyncha: Psyllidae), a second distinct ''Psylla'' species on the New Zealand endemic plant kōwhai |url=https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0221316 |journal=PLOS ONE |volume=14 |issue=9 |article-number=e0221316 |bibcode=2019PLoSO..1421316M |doi=10.1371/journal.pone.0221316 |issn=1932-6203 |pmc=6750570 |pmid=31532775 |doi-access=free}}</ref>
* ''[Psylla betulae](/source/Psylla_betulae)'' feeds on [birch](/source/birch)es
* ''[Psylla buxi](/source/Psylla_buxi)'' feeds on box (''[Buxus](/source/Buxus)'' species)
* ''[Psylla cordata](/source/Psylla_cordata)'' feeds on limes (''[Tilia](/source/Tilia)'' species)
* ''[Psylla frodobagginsi](/source/Psylla_frodobagginsi)'' feeds on kōwhai trees<ref name="YueMartoni2019"/>
* ''[Psylla oblonga](/source/Psylla_oblonga)'' feeds on ''[Albizia odoratissima](/source/Albizia_odoratissima)''

==See also==
* [List of Psylla species](/source/List_of_Psylla_species)

==References==
{{Reflist|refs=
<ref name=catlife>
{{Cite web| title=Browse ''Psylla''
| url=http://www.catalogueoflife.org/col/browse/tree/id/326dfcccc440326be0d461cc9df0c9f3
| website=Catalogue of Life
| access-date=2018-05-13
}}</ref>
<ref name=gbif>
{{Cite web| title=''Psylla''
| url=https://www.gbif.org/species/5153055
| website=GBIF
| access-date=2018-05-13
}}</ref>
<ref name=bugref>
{{Cite web| title=''Psylla'' Genus Information
| url=https://bugguide.net/node/view/49557
| website=BugGuide.net
| access-date=2018-05-13
}}</ref>
}}

{{Taxonbar|from=Q678184}}
{{Authority control}}

Category:Psyllidae
Category:Psylloidea genera
Category:Taxa named by Étienne Louis Geoffroy
Category:Insects described in 1762

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Adapted from the Wikipedia article [Psylla](https://en.wikipedia.org/wiki/Psylla) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Psylla?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.