Our ID Notes may contain important tips necessary for distinguishing this gall from similar galls and/or important information about the taxonomic status of this gall inducer.
The plant-feeding gall midges of North America
“
Ovoid, white-downy, lateral bud gall
[notes that these may or may not be made by the European Rhopalomyia millefolii Loew, as Felt (1918, 1940) stated.]
Unless noted otherwise in the ID Notes, observations of this gall are collected in the Observation Field Gallformers Code with value a-millefolium-downy-bud-gall on iNaturalist. You can view them here: