Phylloxera paludis Hamilton, sp. n.

Hosts: Carya aquatica

Galls: Round and shiny, convex, light green to brownish-green, slightly pubescent, and with shallow or deep depression in center on adaxial leaf surface; round and shiny, flattened and slightly convex, light green to brownish-green, and slightly pubescent on abaxial leaf surface, more convex above than below.

Round and more convex above, light green to brownish-green, shiny and slightly pubescent, with a shallow or deep depression in center, some with a seam along middle of circumference, and diameter 3.0–4.5 mm; below flattened and round, light green to brownish-green, shiny, and slightly pubescent. Opening below round and surrounded by 5–6 short bracts with pubescence at tips..

[A figure of the gall appears on page 147 of the pdf. A discussion of how to distinguish this gall from the similar P notabilis appears on page 102.]

Range: MS