Disholcaspis mamillana

A globular bullet gall drawn out at apex into a distinct blunt point like the pointed bullet gall of the Eastern States. Wall thick, central larval cell not separable. Covered when young with very dense, short pubescence which weathers away in late fall.

Host: Quercus douglasii

Disholcaspis mamillana

Quercus douglasii, dumosa
Stem galls, detachable from the twig
Fig 162. Pointed bullet gall, when young covered with dense short pubescence. Larval cell not separable. Dec.

Fig 162. On Q-douglasii and dumosa. Pointed bullet gall. Wall thick, larval cell not separable. The short, dense pubescence when young weathers away. Contain adults in December (Stanford).

Disholcaspis mamillana

This cynipid wasp induces round, monothalamous, finely hairy bud galls on blue and scrub oaks, The light beige galls may have a rose flush near the base.

Hosts:
Quercus douglasii
Quercus berberidifolia