Amphibolips confluenta

Amphibolips quercusinanis (sexgen)

Neuroterus pallidus (sexgen)

Callirhytis quercuspunctata (agamic)

Amphibolips confluentus

Large, globular, more or less smooth outside and filled with a spongy substance in the center of which is a hard woody kernel containing the larval cell. From 1 to 2 in in diameter. When fresh, it is pale green, soft and succulent, with the contents whitish. Later in the season the shell becomes brown, hard and brittle, with the kernel woody and the spongy substance dark brown, but remaining soft. Confined to the leaves of the trees belonging to the red oak group. Common.

Amphibolips inanis

Shape like the preceding [Amphibolips confluentus] but considerably smaller. Almost empty, the larval cell being kept in position by radiating filaments. Green and soft when young, brown and brittle when dry. On leaves of scarlet (Quercus coccinea) and red oak (Q rubra).

Oak Flower-Stem Gall (Neuroterus pallidus Bass.)- — Small, unevenly globular, smooth and of a fine, soft cellular consistence. Pale wood color. In masses on flower stems of swamp white oak (Quercus platanoides [bicolor]). Not common.

Andricus punctatus Bass

Shape similar to [the preceding gall,](https://www.gallformers.org/gall/821) but without the horn-like protuberances. Sometimes found singly, but often a number may be seen, in greater or less proximity, on the same branch. On Quercus marilandica, coccinea, and rarely on nana [ilicifolia]. Common.

Insect-galls of the vicinity of New York City