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

Adleria arizonica

Quercus arizonica
Leaf galls
Detachable
Similar to above [Disholcaspis sulcata]

One species, [Adleria] arizonica (Cockerell) must be transferred to Disholcaspis: D. arizonicus (Cockerell), comb. nov

Holcaspis arizonica, n. sp.

Gall globular, 9 mm. diam., pale ochreous, not shiny, attached to the base of the petiole of a leaf of Quercus arizonica, Sargent. There is a projecting point next to the place of insertion. Within, the gall is brown, fibrous, moderately dense, at least dithalamous.

Range: Prescott, AZ

Holcaspis arizonica Cockerell

Gall. Attached to the base of the petiole of leaf of oak (Quercus arizonica). Globular, pale ochreous, not shining. There is a projecting point next to the place of insertion. Inside it is brown, fiberous, moderately dense, with at least two cells. Diameter 9 mm.

Habitat. Prescott, Arizona.

This species is unknown to me. According to T. D. A. Cockerell it is closely related to Cynips sulcatus Ashmead, but differs by its much darker color and infuscated wings, and seems to go best in Holcaspis. The type, according to Prof. T. D. A. Cockerell, is with the American Entomological Society.