Nichollsiella puigi, sp. nov.

Hosts: Quercus chihuahensis, grisea, magnoliifolia, resinosa

[A photo of the gall appears on page 43 of the pdf]

Gall. (Fig 125). Detachable, multilocular, globular to ovoid, 12–15 mm in diameter. Galls develop on axillary buds, petioles or at the base of the midrib, on the upper side of leaves. Surface smooth, internal parenchyma hard. Larval chambers are in the middle of the gall; with 2–4 larval chambers/gall.

Biology. Only the asexual generation is known which induces galls on Q. chihuahensis, Q. grisea, Q. magnoliifolia and Q. resinosa; adults emerge in winter, rarely at the end of spring.

Range: Aguascalientes, Jalisco, Zacatecas