Quercus chrysolepis
Leaf galls, separable from leaf intact
Mushroom-shaped, with hairy rim, dia 7 mm by 3 mm high, upper side. Fig 167.

Fig. 167. Unknown. Mushroom-shaped, on under side of leaf of Q. chrysolepis. Diameter 7.0 mm. Exit hole on upper side of leaf. Half-grown on June 15 on new leaves (Camp Baldy).

Unknown #27
Hairy-mushroom-gall wasp

Hosts: Quercus chrysolepis

The monothalamous galls of this wasp are unique in that they look like miniature hairy mushrooms on the ventral side of leaves of canyon live oak. Exit holes for the adults are on the dorsal side of the gall attachment.

Range: Santa Clara and Riverside counties, CA