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Species Callirhytis flavipes

midvein gall on bur oak leaf - Callirhytis flavipes midvein gall on bur oak leaf - Callirhytis flavipes midvein gall on bur oak leaf - Callirhytis flavipes midvein gall on bur oak leaf - Callirhytis flavipes oak gall - Callirhytis flavipes oak gall - Callirhytis flavipes
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon ("Parasitica" - Parasitoid Wasps)
Superfamily Cynipoidea
Family Cynipidae (Gall Wasps)
Tribe Cynipini (Oak Gall Wasps)
Genus Callirhytis
Species flavipes (Callirhytis flavipes)
Synonyms and other taxonomic changes
Neuroterus flavipes Gillette, 1889
Remarks
Forms galls in bur oak (Quercus macrocarpa) leaves: "Elongated, bare, fleshy midrib swelling in June, containing several cells." (1)

A few Lasioptera gall midges have been reared from similar galls, but they were probably all inquilines in galls initiated by cynipids. (2)
Works Cited
1.Cynipid Galls of the Eastern United States
Lewis H. Weld. 1959. Privately printed in Ann Arbor, Michigan.
2.The Plant-Feeding Gall Midges of North America
Raymond J. Gagné. 1989. Cornell University Press.