Phylloxera echinus Hamilton, sp. n.

Hosts: Carya aquatica

Galls: Globular, pubescent, pink, and more convex on adaxial leaf surface and slightly convex, pubescent, and green on abaxial leaf surface.

Globular and more convex above, pinkish, and with long yellowish-white pubescence; diameter 1.3–1.8 mm; below slightly convex, light green, and pubescent. Opening round and surrounded by short yellowish-white pubescence.

[A figure of the gall appears on page 133 of the pdf. A discussion of how to distinguish this gall from the similar P pilosula appears on page 84.]

Range: SC

- Fredericka Blair Hamilton: (2019) Species Diversity of Hickory-feeding Phylloxerans (Hemiptera: Phylloxeridae) in the U.S.^©