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  2. Dryocosmus minusculus - Wikipedia

    en.wikipedia.org/wiki/Dryocosmus_minusculus

    Dryocosmus minusculus is an abundant species of cynipid wasp that produces galls on oak trees in California in North America. [1] [2] Commonly known as the pumpkin gall wasp, the wasp oviposits on the leaves of Quercus agrifolia, Quercus wislizenii, and Quercus kelloggii. In spring and summer, larvae induce round galls reaching 1 mm across.

  3. Neuroterus saltatorius - Wikipedia

    en.wikipedia.org/wiki/Neuroterus_saltatorius

    Neuroterus saltatorius, also known as the jumping gall wasp, is a species of oak gall wasp. It is found in North America, where it induces galls on a variety of oak trees, including Oregon oak, valley oak, California scrub oak, blue oak, [1] [2] and leather oak. [3]

  4. Trichoteras coquilletti - Wikipedia

    en.wikipedia.org/wiki/Trichoteras_coquilletti

    Trichoteras coquilletti, formerly Andricus coquilletti, also known as the little oak-apple gall wasp, is a fairly common species of cynipid wasp that produces galls on oak trees in North America. [1] This wasp oviposits on the underside of the leaves of huckleberry oaks and canyon live oaks . [ 1 ]

  5. Neuroterus fragilis - Wikipedia

    en.wikipedia.org/wiki/Neuroterus_fragilis

    Neuroterus fragilis, also known as the succulent gall wasp, is a species of oak gall wasp. It induces galls in oak trees in California, including leather oak, California scrub oak, blue oak, and valley oak. [1] [2] Adults are small, 0.7–1.2 millimetres (0.028–0.047 in), with yellow legs. [3]

  6. Ask the Expert: What are the small bumps shown on oak ... - AOL

    www.aol.com/ask-expert-small-bumps-shown...

    Jumping oak galls are caused by a very tiny, native, stingless wasp (Neuroterus sp.) which lays eggs in leaf buds. As the leaf develops, pinhead-sized galls, also referred to as abnormal plant ...

  7. Andricus confertus - Wikipedia

    en.wikipedia.org/wiki/Andricus_confertus

    Andricus confertus, the convoluted gall wasp, is a fairly common species of cynipid wasp that produces galls on oak trees in California in North America. This gall, with its pink, brain-like appearance, is actually a cluster of galls. [1] In summer, parthenogenetic female larvae induce these galls on the underside of valley oak leaves, along ...

  8. Dryocosmus dubiosus - Wikipedia

    en.wikipedia.org/wiki/Dryocosmus_dubiosus

    Dryocosmus dubiosus is an abundant species of cynipid wasp that produces galls on oak trees in California in North America. [1] [2] Commonly known as the two-horned gall wasp, the wasp oviposits on the leaves and catkins of coast live oaks and interior live oaks. [1] After the eggs hatch, the resulting gall form looks like it has a set of bull ...

  9. Andricus quercuscalifornicus - Wikipedia

    en.wikipedia.org/wiki/Andricus_quercuscalifornicus

    Andricus quercuscalifornicus can induce and inhabit the galls of a variety of oak species, but they are primarily found in the galls of the Valley Oak. Due to this, they are usually found in areas such as riparian forests, open foothill woodlands, valley savannas, plant groves, and suburban areas. The wasps typically induce galls on the twigs ...