Disholcaspis mamillana Weld, 1957, sexual generation

[A photo of this gall appears on page 13 of the pdf]

Gall (Fig. 20): Length 2.4–2.9mm, buff-colored, oblong grain-shaped, bluntly pointed, thin walled, and glabrous. Arising from the buds at the base of new leaves during spring flush. Emergence holes are rough edged and near the apex.

Host plant remarks: The recorded host for the asexual generation wasps is Q. douglasii (Weld 1957). All sexual generation specimens here identified as D. mamillana were taken from a field identified Q. douglasii. No host voucher is available for these specimens