Polystepha pilulae
{{Short description|Species of fly}}
{{Speciesbox
| image = Polystepha pilulae galls mosbo6.jpg
| image_caption = Polystepha pilulae galls on Quercus rubra
| genus = Polystepha
| species = pilulae
| authority = (Beutenmüller, 1892)
| synonyms = {{Species list
| Cincticornia pilulae | Beutenmüller, 1892
}}
}}
Polystepha pilulae, the oak leaf gall midge, is a species of gall midge in the family Cecidomyiidae. It is found in eastern North America.
Description of the gall
The larvae of this species of midge form circular galls that can be flat or convex. These form on the upper surface of oak leaves of the red oak group (Quercus sect. Lobatae), between the veins. The galls are thick-walled and reddish-brown in colour.{{Cite book|last=Gagné|first=Raymond J.|title=The plant-feeding gall midges of North America|publisher=Comstock Publishing Associates|year=1989|location=Ithaca, N.Y.}} They are 3 to 4 mm in diameter.{{Cite journal|last=Felt|first=EP|date=1910|title=Gall midges of Aster, Carya, Quercus, and Salix|url=https://zenodo.org/records/2284403/files/article.pdf|journal=Journal of Economic Entomology|volume=3|issue=4 |pages=347–356 |doi=10.1093/jee/3.4.347 }}
Polystepha_pilulae-upperside_galls.jpg|closeup view of galls
References
{{Reflist|refs=
{{Cite web| title=Polystepha pilulae Report
| url=https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=124496
| website=Integrated Taxonomic Information System
| access-date=2018-05-06
}}
{{Cite web| title=Polystepha pilulae species details
| url=http://www.catalogueoflife.org/col/details/species/id/a10dd3458b011ba1e0bbd65de46f3777
| website=Catalogue of Life
| access-date=2018-05-06
}}
{{Cite web| title=Polystepha pilulae
| url=https://www.gbif.org/species/1598116
| website=GBIF
| access-date=2018-05-06
}}
{{Cite web| title=Polystepha pilulae Species Information
| url=https://bugguide.net/node/view/583231
| website=BugGuide.net
| access-date=2018-05-06
}}
}}
Further reading
{{refbegin}}
- {{Cite book
| title = A Catalog of the Cecidomyiidae (Diptera) of the World, Fourth Edition
| date = 2017
| last1 = Gagné | first1 = Raymond J.
| last2 = Jaschhof | first2 = Mathias
| publisher = Agricultural Research Service, US Department of Agriculture
| url = https://www.ars.usda.gov/ARSUserFiles/80420580/Gagne_2017_World_Cat_4th_ed.pdf
}}
- {{Cite report
| title = A Catalog of the Cecidomyiidae (Diptera) of the World
| date = 2014
| last1 = Gagné | first1 = Raymond J.
| last2 = Jaschhof | first2 = Mathias
| publisher = Systematic Entomology Laboratory, USDA
| url = http://www.ars.usda.gov/SP2UserFiles/Place/12454900/Gagne_2014_World_Cecidomyiidae_Catalog_3rd_Edition.pdf
}}
{{refend}}
{{Taxonbar|from=Q13625692}}
Category:Articles created by Qbugbot
Category:Insects described in 1892
Category:Diptera of North America
Category:Taxa named by William Beutenmuller
Category:Gall-inducing insects
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