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Description:
LNHS Sheet number 153
Collector: Mr Joseph Ross
Collection date: 9 July 1938
County: Surrey
Locality: VC17, Banstead Heath
[Host Plant] Achillea millefolium; [Gall description, Hollins & Plant] Ovoid swellings (1-2mm diameter) on leaves.[Additional notes] Hollins & Plant give the causer as Rhopalomyia millefolii (H. Loew). An error in taxonomy or a re-determination of gall causer?
Taxonomic name: