Andricus dimorphus
{{short description|Species of oak gall wasp}}
{{Speciesbox
| image = Andricus dimorphus galls on Bur Oak leaf.jpg
| image_caption=Andricus dimorphus galls on bur oak
| genus = Andricus
| species = dimorphus
| authority = (Beutenmuller, 1913)
| synonyms = {{Specieslist
|Cynips dimorphus|
|Adleria dimorpha|
}}
}}
Andricus dimorphus, also called the clustered midrib gall wasp, is a species of oak gall wasp in the family Cynipidae. Galls in which the larvae live and feed are formed in clusters along the midrib on the underside of oak leaves.Weld, L. Hart. (1959). Cynipid galls of the Eastern United States. Ann Arbor, Mich.
Range
This species has been found throughout central and eastern North America where its host species occur.{{Cite journal|last=Gillette|first=C.P.|date=1890|title=The gall-producing Cynipidae of Iowa|url=https://www.biodiversitylibrary.org/page/8589330|journal=Proceedings of the Iowa Academy of Sciences|volume=1|pages=110–114}}
Description
Confirmed hosts of the clustered midrib gall wasp are white oak species, including Quercus macrocarpa, Q. alba, Q. prinoides, and Q. bicolor.{{Cite journal|last=Beutenmuller|first=William|date=1913|title=Descriptions of new Cynipidae|url=https://www.biodiversitylibrary.org/page/5350662|journal=Transactions of the American Entomological Society|volume=39|pages=243–248}} Clusters of up to 50 globular (but with a pointed base), red-brown galls are formed along the midrib on the underside of leaves beginning in late summer. The galls readily detach from the leaf, particularly when mature. Adults emerge from the galls the following year. Inquilines and parasitoids may inhabit the galls.{{Cite journal|last1=Ward|first1=Anna K. G.|last2=Sheikh|first2=Sofia I.|last3=Forbes|first3=Andrew A.|date=2020-11-01|title=Diversity, Host Ranges, and Potential Drivers of Speciation Among the Inquiline Enemies of Oak Gall Wasps (Hymenoptera: Cynipidae)|url=https://academic.oup.com/isd/article/4/6/3/5997471|journal=Insect Systematics and Diversity|language=en|volume=4|issue=6|doi=10.1093/isd/ixaa017}}
Taxonomy
This species was first described by William Beutenmuller in 1913 with the name Cynips dimorphus. According to Clarence Gillette, William Ashmead had already used this name by 1889 for a species that produces galls similar to those of Beutenmuller's Cynips dimorphus.{{Cite journal|last=Gillette|first=C. P.|date=1889|title=Notes on Certain Cynipidae With Descriptions of New Species|journal=Psyche: A Journal of Entomology|volume=5|issue=156|pages=183–188|language=en|doi=10.1155/1889/26024|doi-access=free}} This species was later transferred to the genus Adleria which itself was subsequently included within Andricus.Melika, G. & Abrahamson, W.G. (2002) Review of the World Genera of Oak Cynipid Wasps (Hymenoptera: Cynipidae: Cynipini). In: Melika, G. & Thuróczy, C. (Eds.), Parasitic Wasps: Evolution, Systematics, Biodiversity and Biolog-ical Control. International Symposium: “Parasitic Hymenoptera: Taxonomy and Biological Control” (14–17 May 2001, Kõszeg, Hungary). Agroinform, Budapest, pp. 150–190.
References
{{Reflist}}
{{Taxonbar|from=Q55650933}}
Category:Gall-inducing insects
Category:Insects described in 1913