[Undescribed species tentatively matched to H crescentus based on the similarity of the photo to Lyon's drawing]

Quercus chrysolepis
Leaf galls, integral
Small hollow sphere, dia 3.6 mm. Exit hole on under side of leaf. Fig 104.

Fig 104. A small sphere projecting more on under side of leaf. Q. chrysolepis. Galls collected in summer and fall have been empty.

Heteroecus crescentus, new species
bisexual generation

Hosts: Quercus chrysolepis

Gall (Fig. 1D).—A small, green blister two and one-half mm in length, showing on both sides of the leaf. Galls are double chambered with the developing larvae and pupae occupying the lower chamber. The adult insects emerge from the lower side of the leaf.

Locality.— The type and paratypes were collected from galls on Quercus chrysolepis Liebm. in La Crescenta, California.