Phylloxera stoetzelae Hamilton, sp. n.

Hosts: Carya aquatica, Juglans hindsii

Galls: Round and yellowish-gold or crimson, slightly convex or sunken below leaf tissue, with central elevation or depression, shiny and glabrous on adaxial leaf surface; globular, much more convex, yellowish-gold or green with a hint of pink, shiny, and glabrous on abaxial leaf surface.

Round and slightly convex or slightly sunken below surface above, yellowish-gold or crimson, glabrous and shiny, and with a central depression or elevation; diameter 4.0–9 mm; below more convex and globular, yellowish-gold or light green, and glabrous and shiny. Opening below surrounded by white pubescence and at maturity splits open into four white pubescent bracts.

Leaf gall: round

[A figure of the gall appears on page 149 of the pdf. A discussion of how to distinguish this gall from the similar P russellae appears on page 105.]

Range: MS, GA

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