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Diptera: Cecidomyiidae - gall midge
Rhopalomyia ptarmicae Galls on Achillea ptarmica (Sneezewort), A. millefolium (Yarrow) Hosts: Achillea millefolium, ptarmica |
Rhopalomyia ptarmicae
Kingston Lacy and Alners Gorse Dorset. July 2018, September 2018