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The common spangle gall on the underside of leaves and the currant gall on the male catkins or occasionally the leaves, develop as chemically induced distortions on pedunculate oak (Quercus robur), or sessile oak (Quercus petraea) trees, caused by the cynipid wasp [1] Neuroterus quercusbaccarum which has both agamic and bisexual generations.
The host plants, and the size and shape of the galls are specific to the majority of gall wasps, with about 70% of the known species parasitizing various types of oak, inducing oak galls. Galls can be found on nearly all parts of such trees, including the leaves, buds, branches, and roots.
Eriophyes inangulis is a mite that forms the alder vein angle gall. [3] It develops in a chemically induced gall; a sub-spherical distortion rising up from the upper surface of the leaves of alder trees Alnus glutinosa along the midrib. Synonyms are Eriophyes laevis inangulis, Phytoptus laevis, and Cephaloneon pustulatum. [3]
Amphibolips confluenta Spongy Oak Apple Gall Wasp; Amphibolips cookii Oak Apple Gall Wasp; Amphibolips nubilipennis Translucent Oak Gall Wasp; Amphibolips quercusinanis Larger Empty Oak Apple Wasp [11] Amphibolips quercusjuglans Acorn Plum Gall Wasp; Amphibolips quercusostensackenii Small Oak Apple Gall Wasp; Amphibolips quercuspomiformis Live ...
Amphibolips quercuspomiformis, also known as the apple gall wasp or live oak apple gall wasp, is a species of gall wasp. It induces galls in coast live oak and interior live oak trees. Like many gall wasps, it has two alternating generations which induce differing galls: an all-female parthenogenic generation, and a bisexual generation.
Biorhiza pallida, also known as the oak apple gall wasp, [1] is a gall wasp species in the family Cynipidae. This species is a member of the tribe Cynipini: the oak gall wasp tribe. Cynipini is the tribe partially responsible for the formation of galls known as oak apples on oak trees. These are formed after the wasp lays eggs inside the leaf ...
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Andricus kollari, also known as the marble gall wasp, is a parthenogenetic species of wasp which causes the formation of marble galls on oak trees. Synonyms for the species include Cynips kollari , Andricus quercusgemmae , A. minor , A. indigenus and A. circulans .