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TaxonomyBrowse
Info
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Species Disholcaspis quercusmamma - Oak Rough Bulletgall Wasp

twig galls on bur oak - Disholcaspis quercusmamma twig galls on bur oak - Disholcaspis quercusmamma Disholcaspis quercusmamma galls - Disholcaspis quercusmamma Disholcaspis quercusmamma? - Disholcaspis quercusmamma Oak galls - Disholcaspis quercusmamma Quercus galls - Disholcaspis quercusmamma Disholcaspis? - Disholcaspis quercusmamma Disholcaspis? - Disholcaspis quercusmamma
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 Disholcaspis
Species quercusmamma (Oak Rough Bulletgall Wasp)
Other Common Names
The gall is called the "rough bullet gall."
Synonyms and other taxonomic changes
Disholcaspis mamma Walsh
Explanation of Names
Quercus is the genus name for oak. "Mamma" is Latin for "breast," presumably a reference to the "nipple" on the gall.
Size
Galls 1/4"-3/4" in diameter.
Identification
Galls are "globose, obscurely pointed, green [or] bright red, turning to brown or dark red." (Felt 1940)
Food
Galls are found on swamp white oak (Quercus bicolor), bur oak (Q. macrocarpa), and overcup oak (Q. lyrata).
Remarks
Parasitoids include 5 Sycophila spp. (Eurytomidae), one of which is pictured here:
Internet References
Forestry Images (images of galls and adult wasps)