Burnettweldia washingtonensis (Gillette 1894), comb. nov.

Cynips washingtonensis
Disholcaspis washingtonensis

Hosts: Quercus douglasii, dumosa, garryana, lobata

[A photo of the gall appears on page 32 of the pdf]

Gall. (Fig 96). Detachable monolocular stem gall, occuring singly or in groups on young stems, beige to dirty gray, solid, round, fuzzy, 8–10 mm wide, with mealy-granular surface texture and bumps, often with a short stalk at the base. The larval chamber in the center, oval, thick-walled. Old galls can remain on the trees for a year or more (Burnett 1977, Russo 2006).

Biology. Galls mature in September-October; adults emerge in November. Galls on Q. douglasii, Q. dumosa, Q. garryana, Q. lobata (Burks 1979).

Range: CA, OR, WA, Sierra Nevada and Cascade Mountains

- 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^©