Belonocnema treatae, new synonym [reversed by Zhang et al]
Hosts: Quercus fusiformis
Locality: TX
Root galls.--Root galls induced by unisexual females [they seem to be attributing the gall to the parent wasp, not the larvae within, unlike other sources] grow in irregularly shaped, multilocular clusters on small rootlets just below the soil surface. Clusters appear fleshy and yellow and detach easily from the root surface. Sampled galls were composed of from 1 to 28 chambers and measured 5 to 28 mm in length. Developing root galls have been found in early January and at this stage appear yellow-green in coloration. Mature galls (those from which the bisexual generation has emerged in the laboratory) have been collected in mid-February. In the field, emergence holes in root galls were first observed in mid-March 1997, coincident with the appearance of oviposition scars on leaves of the host plant.
”- JoAnne Lund, James Ott, Robert Lyon: (1998) Heterogony in Belonocnema treatae Mayr (Hymenoptera: Cynipidae).©
Reference: https://www.biodiversitylibrary.org/item/54709#page/775/mode/1up