Quercus arizonica, reticulata [rugosa], subturbinella [turbinella]
Bud galls
Smooth, green, in rosette of narrow bracts, in fall. Fig. 29.

Unknown #37
Thistle-head bud-gall wasp

Hosts: Quercus oblongifolia, Quercus turbinella

In October, when fresh, these monothalamous galls are quite attractive, because of dozens of thin, hairy green bracts that emanate from the central base. Fresh galls are bright green, but with age they flare open and turn beige-brown. Short white hairs are retained throughout growth of the gall.