Zopheroteras cuneatum [listed as Zopheroteras in the host index for Quercus alba but Sphaeroteras in the photo caption]

Quercus alba
Leaf galls, detachable
Fig 235. Conical, red, 4 mm. long, attached at the base of the petiole in the fall. Rare.

[Photo caption]

235. Sphaeroteras cuneatum. On Q alba. Adults emerged the second spring and also the third.

Zopheroteras cuneatum, new species

Host: Quercus alba

Conical, red, 3.0-4.4 mm. long by 1.5 mm. broad at base, attached to the very base of the petiole in fall just as the leaves are turning. On young trees or sprouts from stumps. Rare.

Habitat: VA, MO, AR

On October 17, 1938, the living adult was cut out of a gall collected just a year previously at East Falls Church, Va. Galls have been seen at Ironton, Mo., and at Hot Springs and Texarkana, Ark.