Feron discularis (Weld, 1926), comb. nov.

Gall (Figs 187–188). Disk-shaped, about 6 mm in diameter by 1 mm thick, single or scattered in small numbers on underside of leaf in autumn. The upper surface is slightly concave, the edge sinuate, the margin reflexed nearly to the leaf surface. The transversely placed larval cell occupies the full height of the gall. Exit hole on top surface (Weld 1926).

Biology. The asexual generation only is known, inducing galls on Q. garryana (section Quercus, subsection Dumosae). Galls mature in September, adults were cut out in November.

Distribution. USA: CA (Weld 1926).

- Victor Cuesta-Porta, George Melika, James, A. Nicholls, Graham N. Stone, Juli Pujade-Villar: (2023) Re-establishment of the Nearctic oak cynipid gall wasp genus Feron Kinsey, 1937 (Hymenoptera: Cynipidae: Cynipini), including the description of six new species^©