Amphibolips turulli n. sp.

[Photos of this gall appear on page 39 of the pdf]

Gall (Figs 14F–G). A turgescent spherical gall located on the underside of leaves. The body of the gall is globose, with greatest diameter near middle of the gall measured from base to apex, up to 20–25 mm. The gall is thin-walled, olive green when mature and turns wrinkled when dry, with smooth and naked surface, succulent, with central ovate hard-walled larval chamber, with largest length of 5.0–6.5 mm.

Hosts. Quercus affinis.

Biology. Only females are known. The mature galls were collected in late June; adults emerged in early July.

Distribution. Mexico: Hidalgo State.

Remarks. The gall of this new species is not usual for Mexican Amphibolips species, but two North American species have similar galls on the underside of leaves: A. quercusracemaria (Ashmead, 1881) from Florida (USA) on Q. laurifolia and A. nubilipennis (Harris, 1841) from Massachusetts on several species of red oaks. Nevertheless, the sculpture of the mesoscutum and the colour pattern of wings are different in A. quercusracemaria and A. nubilipennis