Amphibolips rulli n. sp.

[Photos of this gall appear on page 43 of the pdf]

Gall (Figs 15H–I). A subspherical, bud gall, fusiform at apex, ending in a tip, with greatest diameter near middle of the gall, up to 35 mm in diameter. The gall is thin-walled, olive green, mottled with clear spots when mature and turn brown when dry, mottles still visible; parenchyma rather lignified, rugose; internal tissue hard spongious, with central ovate hard-walled larval chamber, with mature length 5.0–6.0 mm.

Hosts. Quercus eduardi, Q. emoryi, Q. viminea.

Distribution. Mexico: Zacatecas State.

Biology. Only females are known. Mature galls were collected in October; adults emerged in November