Phylloxera caryae-gummosa Riley.
Forming pedunculate, ovoid or globular galls on the under side of leaves of Hicoria alba [Carya tomentosa]; the gall white or yellowish, pubescent, and gummy or sticky; opening below in a fibrous point. The eggs are almost spherical, pale and translucent. Larvae, motherlouse and pupa quite pale, the red eyes and eyelets strongly contrasting. The winged insects with difficulty distinguished from some of the other species, a difficulty made all the greater from the fact that other species get caught in the sticky surface of the gall.
”- Theo. Pergande: (1904) North American Phylloxerinae affecting hicoria (Carya) and other trees©
Reference: https://www.biodiversitylibrary.org/item/114693#page/60/mode/1up