Andricus gigas

The tan, conical, bisexual generation galls produced occurred on the staminate flowers and occasionally in leaves (Fig. 1). Those at the base of staminate flowers were often hidden by bud scales.

Field observations and rearings have shown the bisexual generation of Andricus crenatus Weld (1952) is Andricus gigas Kinsey (1922). Because Kinsey erroneously described a toothed tarsal condition, Weld (1951) transferred A. gigas to Dryocosmus Giraud. Due to the actual toothed tarsal claws of both generations, the species is now returned to the original placement in Andricus Hartig. The valid name again becomes Andricus gigas.

Host:
Quercus douglasii

- D C Dailey, C M Sprenger: (1973) Synonymy of Andricus gigas and the bisexual generation of Andricus creatus (Hymenoptera: Cynipidae)^©

Reference: https://www.biodiversitylibrary.org/item/254618#page/205/mode/1up