Paracraspis guadaloupensis (Fullaway, 1911) comb. rev.

Callirhytis guadaloupensis
Acraspis guadaloupensis

Hosts: Quercus chrysolepis

[A photo of the gall appears on page 69 of the pdf]

Gall. (Fig 208). Convex-flat, disc-shaped, monolocular, detachable galls on the underside of Q. chrysolepis leaves, usually on lateral veins. The gall is up to 5.0–6.0 mm in diameter; occurs singly or up to 2–3 galls on one leaf (Fullaway 1911). Biology. Only the asexual generation is known, inducing galls on Q. chrysolepis. Galls start to develop in May on the previous year’s leaves; adults emerge from late winter to early spring with emergence holes usually off center.

Range: CA

Paracraspis guadaloupensis (Weld)

Quercus chrysolepis
Leaf galls, separable from leaf intact
Fig 117. Flat spangle, dia 6 mm.

117. Partly grown in May on last year's leaves. From galls collected in September adults were cut out in November and December (Idyllwild).

Paracraspis guadaloupensis

Quercus wilcoxii [chrysolepis]
Leaf galls
Detachable
Fig 99.

Paracraspis guadaloupensis
(Acraspis guadaloupensis)*
Disc-gall wasp
[Page 152]

Hosts: Quercus chrysolepis

This cynipid wasp induces convex to flat, disc-shaped, monothalamous galls on ventral lateral veins of leaves of canyon live oak.

Cynips guadaloupensis var guadaloupensis
agamic form

Callirhytis guadaloupensis
Acraspis guadaloupensis

GALL. — Much flattened, circular, disk-like, up to 7.0 mm. in diameter and 1.2 mm. in height; the walls thick and the larval cell the only internal cavity; on. leaves of Quercus chrysolepis. Figure 146.

RANGE. — California: Guadaloupe (R. W. Patterson; types). Santa Lucia Mts. (gall, acc. Weld 1926). Probably occurring thruout the range of Q. chrysolepis in a more southern Coast Range area of California; perhaps extending thruout the mountains of California from the Sierra Madre north to the Oregon boundary. Figure 27.