Feron izabellae Melika, Nicholls & Stone, sp. nov.

Gall (Fig. 227). A small (up to 5mm diameter) monolocular spangle gall on the underside of leaves. Initially a disc-shaped gall lying flat against the leaf surface, pink in middle and around the edge with cream circle in between. When galls mature the opposite sides of the disc fold up and touch. Informally called the pink bowtie gall wasp in Russo (2006, 2021).

Biology. Only the asexual generation is known which induces spangle leaf galls on Q. berberidifolia, Q. douglasii, Q. dumosa (= Q. durata), Q. garryana (all section Quercus, subsection Dumosae). Galls mature in September–October. Adults emerge soon afterwards.

Distribution. USA: CA (authors).

Quercus durata, garryana
Leaf galls, detachable
Collapsed-cup spangle. Fall. Fig 122.

Fig 122. Adults emerged Apr. 5 but have not been described. They are closely related to those reared from Fig. 135 [Phylloteras cupella].

Pink Bow Tie Gall Wasp (Unknown #2)

This cynipid wasp induces detachable, monothalamous galls on the underside of leaves of blue, scrub, and leather oaks.

Hosts:
Quercus douglasii
Quercus berberidifolia
Quercus durata