Zopheroteras guttatum, new species

Host: Quercus palustris

Gall: Almost spherical, smooth, bare, with purple spots on a cream background, attached singly on under side of leaf on a secondary vein, dropping in early October. From 1.4 to 2.5 mm. in diameter. Pure white inside with the minute larval cavity central.

Habitat. — Type locality East Falls Church, Va. Galls were collected in October in eight different years; adults emerged the second spring in each case on the following dates: March 6, 20, 25, 29, April 1, 3, 7. Buds on pin oak at that time show no signs of swelling. Oviposition not observed. Alternating generation unknown.

- LH Weld: (1952) New American Cynipid Wasps From Galls^©

Reference: https://www.biodiversitylibrary.org/page/15672479#page/378/mode/1up