Oak Pea Gall Wasp

Acraspis pezomachoides

Acraspis pezomachoides is a wasp that forms galls on the veins of white oak (Quercus alba).
Acraspis pezomachoides This is a picture of a Acraspis pezomachoides at the Mckeldin Area of Patapsco Valley State Park in Carroll County, Maryland. Acraspis pezomachoides,Fall,Geotagged,Oak Pea Gall Wasp,United States

Appearance

Forms galls on veins of white oak (Quercus alba). "Spherical or ellipsoidal, naked and faceted to spiny, young galls light green, rose-tinted, becoming yellow or brown, spines when present purplish red, diameter 1/4 inch, two-celled."

Distribution

Eastern North America

References:

Some text fragments are auto parsed from Wikipedia.

https://www.marylandbiodiversity.com/view/21410
https://bugguide.net/node/view/357968
Taxonomy
KingdomAnimalia
DivisionArthropoda
ClassInsecta
OrderHymenoptera
FamilyCynipidae
GenusAcraspis
SpeciesAcraspis pezomachoides