Andricus albobalani, new species

Host. — Quercus dumosa.

Gall (fig. 45). — A single non-separable cell developed in the wall of acorn toward its base. Affected acorns are undersized, lopsided, firmly fastened in cup and remain on tree. Sometimes two in an acorn. Exit hole in wall of acorn near apex. Found in fall and winter.

Habitat. — Type locality, Boulevard, Calif., where affected acorns were collected on March 2, 1922, and seven living adults cut out. Transformation probably occurs in the fall and emergence in the spring. The finding of larvae in a few of the galls in March indicates that some individuals hold over and emerge the second spring. Similar galls were seen on the same oak at Descanso, Paraiso Springs, Los Gatos, St. Helena, and Lakeport.

- LH Weld: (1926) Field notes on gall-inhabiting cynipid wasps with descriptions of new species^©

Reference: https://www.biodiversitylibrary.org/page/7610635#page/336/mode/1up