Paracraspis patelloides (Trotter, 1910), comb. rev.

Andricus? patelloides
Acraspis patelloides

Hosts: Quercus chrysolepis

[Photos of the gall appear on page 73 of the pdf]

Gall. (Fig 223). Detachable, monolocular concave leaf galls with flared rims on the underside of leaves on midrib or lateral veins; solitary or in clusters of 2–3 galls. The young fleshy galls are flat to slightly concave; as they mature the sides of the gall grow higher, creating a deep central depression and forming a bowl shape. The mature galls are 12 mm in diameter and 5 mm high. When fresh, the galls are a faint pea green to ivory color with pink red margins. By fall, the galls turn beige with hints of pink or red along the margins of the top, with small dark spots on some specimens. The sides of the galls are ridged and nonglossy. The larval chamber lies transversely under the central depression and the exit hole is made through the thin roof into the bottom of this depression. Under the larval chamber a central cavity reaches to the point of attachment (Weld 1926, Russo 2006).

Biology. Only the asexual generation is known, inducing galls on Q. chrysolepis. Galls start to develop in April on the previous year’s leaves; adults can be found in galls in November-December; emerge in early spring; adults continue to emerge until late May.

Range: CA, AZ

- George Melika, Juli Pujade-Villar, James Nicholls, Victor Cuesta-Porta, Crystal Cooke-McEwen, Graham Stone: (2021) Three new Nearctic genera of oak cynipid gall wasps (Hymenoptera: Cynipidae: Cynipini): Burnettweldia Pujade-Villar, Melika & Nicholls, Nichollsiella Melika, Pujade-Villar & Stone, Disholandricus Melika, Pujade-Villar & Nicholls; and re-establishment of the genus Paracraspis Weld^©