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gallfly

an insect that causes swellings on plants when it deposits its eggs on them, e.g. the gall midge or gall wasp.

The poison secreted by the gallfly produces monstrous growth on the wild rose or oaktree.pellentesque semper massa.

Any of various small insects, such as the gall midge or gall wasp, that deposit their eggs on plant stems or in the bark of trees, causing the formation of galls in which their larvae grow.

an insect that deposits its eggs in plants and causes galls in which the larvae feed The complex foraging strategy of the specialised gallfly Urophora cardui (Diptera: Tephritidae) for host plants (Cirsium arvense, Asteraceae) Die komplexe Fouragierstrategie der spezialisierten Gallfliege Urophora cardui (Diptera: Tephritidae) nach Wirtspflanzen (Cirsium arvense, Asteraceae)

Nearly all herbivorous insects in terrestrial ecosystems depend on plants for their survival and reproduction. They dominate terrestrial ecosystems due to species and individual abundance. Interactions between these two groups are thus of a high significance for the analysis and the understanding of complex interactions in terrestrial ecosystems. Foraging for host plants by herbivorous insects is of a central importance. In the present thesis the foraging strategy of the specialised gall fly Urophora cardui on the creeping thistle, Cirsium arvense, was investigated as an example for the foraging of a specialised herbivorous insect. Males and females of U. cardui use the larval host plant as rendezvous place. The males establish territories on the plant, which they defend against conspecifics.