Andricus askewi Melika & Stone, 2001

on Quercus

gall

up to 15 mm large irregularly-globular gall on a terminal bud of a lateral bud nearby. The surface is is smooth and has a somewhat shining lustre, with slight bumps and pits. Young galls are green, later ones yellowish green to pale brown. The outer layer is hard and woody, around the gall chamber the tissue is soft and spongy. The single, relatively large oval gall chamber lies just above the point of attachment of the gall.

host plants

Fagaceae, monophagous

Quercus petraea cf. subsp. pinnatiloba.

notes

species described from Turkey; only asexual females are known. The gall resembles the one of A. conglomeratus, but differs by the shining lustre and the less regular globular shape. The pictures of this gall shown by Kemal & Koçak do not quite agree with the description above.

references

Hellrigl & Bodur (2015a), Katılmış & Kıyak (2008a), Kemal & Koçak (2010a), Melika & Stone (2001a).

mod 17.xii.2018