Amphibolips trizonata Ashmead.

The gall of this species was said to be "in the blossoms of an oak," but no description was given and the host oak unknown.

Host.--Quercus emoryi and Quercus hypoleuca

Gall.--Globular, 25-40 mm in diameter; green, turning to a tan later; smooth or with a finely coriaceous surface. Interior of a dense cellular structure lighter in color than surface, but darker toward the nonseparable larval cell in center. From the attachment a number of whitish strands run up through the cellular tissue to the larval cell. Atached singly to side of small twigs, not a flower gall.

Habitat.--AZ, NM

- LH Weld: (1922) Notes on cynipid wasps, with descriptions of new North American species^©

Reference: https://www.biodiversitylibrary.org/page/7305424#page/468/mode/1up