Nichollsiella arizonica (Cockerell, 1902), comb. nov.

Hocaspis arizonica
Disholcaspis arizonica
Adleria arizonica
Disholcaspis arizonicus

Hosts: Quercus arizonica, turbinella

[A photo of the gall appears on page 38 of the pdf]

Gall. (Fig 109). Detachable leaf galls. Similar to the gall of N. sulcata (Cockerell 1902, Weld 1960). Galls are globular, 9 mm in diameter, pale ochreous to green, not shiny, attached to the base of the petiole of a leaf with a projecting point next to the place of insertion. The gall is brown inside, spongy, moderately dense, with at least two larval cells (Cockerell 1902).

Biology. Only the asexual generation is known. Galls on Q. arizonica and Q. turbinella; adults emerge in April (Cockerell 1902; authors).

Range: 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^©