Disholcaspis pedunculoides

Quercus arizonica, oblongifolia
Acorn galls
Fig 13.

Disholcaspis pedunculoides, new species

Host.--Quercus grisea, undulata, arizonica, oblongifolia

Gall.--In clusters of 2-20 on the peduncle. Individual galls slender, conical, 10-12 mm long, sharp at tip, tapering below to about 3 mm in diameter and more or less clasping at its star-shaped base. Monothalamous, wall .3 mm thick, exit hole in side 1.2 mm in diameter. Colored like the bark, darker at apex.

Biology.--While growing in the late summer the galls are green but by November 1 in the Sandia Mountains they were turning brown and contained adults which emerged during last week in December and first two weeks in January.

Habitat.--NM, AZ

Disholcaspis pedunculoides
Spine-Topped-Gall Wasp

Hosts: Quercus turbinella, arizonica, oblongifolia

These spire-topped galls have long twisted projections surrounding the base. When fresh, galls are rosy red, pink, dark maroon or green and are covered with short white hairs.

Range: Southwest, southwestern Nevada to New Mexico