Callirhytis perfoveata
(sexgen)sexgen:The sexual generation (AKA bisexual generation or sexgen) of an oak gall wasp (cynipini) species consists of both male and female wasps, which mate before the females lay eggs which will mature to form the all-female agamic generation.
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Location: upper leaf, lower leaf, between leaf veins
Form:
Cells: monothalamous
Possible Range:
The gall's range is computed from the range of all hosts that the gall occurs on. In some cases we have evidence that the gall does not occur across the full range of the hosts and we will remove these places from the range. For undescribed species we will show the expected range based on hosts plus where the galls have been observed.
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Common Name(s):
Leaf Ball Gall Wasp , Ball Gall Wasp
Created Feb 4, 2026 1:47 PM UTC
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Last updated Feb 4, 2026 1:47 PM UTC
New Pacific Coast Cynipidae (Hymenoptera)
Alfred Charles Kinsey
(1922)
Andricus perfoveatus, new species
Galls (Pl. XXIV, Fig. 8). —Small, fleshy-walled capsules imbedded in the leaf-blade. Monothalamous. Spherical or more elongate, about 6. mm. in diameter (perhaps larger when fresh), leaf-green, drying brown, projecting about symmetrically from either surface of the leaf. The walls are thick, succulent, the cavity (in shriveled galls) about oval, 2. X 3. mm., with a distinct larval cell lining, but the cell inseparable (at least in the shriveled gall). On the very young leaves of Quercus kelloggii.
Range: —California: Santa Rosa and Redding.
At the time the galls were collected they were very fresh and succulent, on the very young, unfolding leaves of the black oaks, but inasmuch as adults emerged from some of these galls, in spite of their immediate shriveling on collecting, it would appear that the insects complete their development in a very short period in the early spring. Such species of cynipids are usually bisexual, so the male may yet be discovered for this species.
