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The reproduction of gall wasps is usually partly parthenogenesis, in which a male is completely unnecessary, and partly two-sex propagation. [2] Most species have alternating generations, with one two-sex generation and one parthenogenic generation annually, whereas some species produce very few males and reproduce only by parthenogenesis, [2] possibly because of infection of the females ...
Cynips quercusechinus, the urchin gall wasp, is a species of gall wasp in the family Cynipidae. It induces galls in the leaves and leaf buds of blue oak and scrub oak. Like other oak gall wasps, it has two generations: a bisexual generation, and a parthenogenic female generation. In spring, the hatching bisexual generation produces hollow green ...
Andricus quercuscalifornicus is a parasitic species of gallwasp (Hymenoptera, Cynipidae, Cynipini). The cynipid gall-inducer induces galls of 5-20 cubic centimeters on the twigs of the valley oak (Quercus lobata), an endemic tree in California. Gall growth occurs twice annually, during late spring and mid summer.
Besbicus mirabilis, formerly Cynips mirabilis, also known as the speckled gall wasp, is a common species of cynipid wasp that produces galls on oak trees in North America. [1] This wasp oviposits on the midrib of the underside (with rare dorsal-side exceptions) of Oregon oak leaves. [1] One to three detachable galls per leaf have been observed. [1]
Cynipini is a tribe of gall wasps. These insects induce galls in plants of the beech and oak family, Fagaceae. [1] They are known commonly as the oak gall wasps. [2] It is the largest cynipid tribe, with about 936 [3] to 1000 [2] recognized species, most of which are associated with oaks. [2] The tribe is mainly native to the Holarctic. [3 ...
Cynips is a genus of gall wasps in the tribe Cynipini, the oak gall wasps. One of the best known is the common oak gall wasp (Cynips quercusfolii), which induces characteristic spherical galls about two centimeters wide on the undersides of oak leaves. As of 2008, there are about 39 species in this genus. [1]
Cynips quercusfolii, also known as the cherry gall wasp, is a gall wasp species in the genus Cynips and family Cynipidae. The species is important for the production of commercial nutgall formed on Quercus lusitanica (the gall oak). Galls are located on the underside of leaves, with the majority of galls being on the second and third veins from ...
Diastrophus nebulosus (tribe Diastrophini) emerging from gall. Cynipinae is a subfamily of gall wasps (Cynipidae). [1] Many of the approximately 1,500 described species cause galls on oaks, but some induce galls on other plant species or are inquilines of the gall-inducing species.