Andricus confertus new species
Gall--A rounded, closely packed mass of galls occurring on the midribs or lateral veins on the undersides of leaves (rarely on upper side). The masses are from 6 to 8 mm long and almost as wide, each mass containing from few to 20 or more galls. Each gall is rounded on the outer surface and compressed basally. Easily detached when ripe and deciduous. Color pink or rose when fresh, tan when old and dry; 1 to 3 mm in diameter. Monothalamous.
Host: Quercus lobata
Type locality.--Stanford campus Santa Clara county CA
Note.--This species is described from ten females cut out in March from galls collected in November and December. Many galls opened in March contain insects still in larval stage.
”- Mary Isabel McCracken, Dorothy Barnes Egbert: (1922) California Gall-making Cynipidae: With Descriptions of New Species©