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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 .
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 ...
The gall itself is a typical oak apple gall in appearance, roughly spherical and varies from greenish to reddish or orange depending on host, age and environmental conditions. The galls range in size from a 2–14 cm across and often contain multiple larvae as well as parasites and other species that form a mutual relationship by feeding off ...
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.
The galls it induces are 10–30 millimetres (0.39–1.18 in), and present as swellings of the petioles and midribs of oak leaves. In this species of oak gall wasp, only the spring bisexual generation, consisting of both males and females, is known. However, an all-female parthenogenic generation in summer, which most oak gall wasps have, is ...
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 ...
Besbicus maculosus, formerly Andricus maculosus and Cynips maculosa, also known as the pear gall wasp, is an uncommon species of cynipid wasp that induces galls on oak trees on the west coast of North America. [1] The wasp oviposits on leather oak and scrub oak leaves. [1] Fresh galls are green. [1] This wasp has been observed in California. [2]
Acraspis guadaloupensis (also Paracraspis guadaloupensis) is a relatively uncommon species of cynipid wasp that produces galls on intermediate oaks. [1] The intermediate oak disc wasp was first described in 1911 and has been moved between genera more than once. [2] Distribution is limited to California in North America. [3]