Aceria kiefferi
Phytoptus kiefferi
Eriophyes kiefferi
Hosts: Achillea millefolium, Achillea ptamica, Tanacetum abrotanifolium
Relationship: Flower deformation; deformed leaves
Range: Canada, [Europe]
Notes: millefolium and [sic] are widespread in North America. The mite may be useful as a biocontrol agent
”- James Amrine: (2019) Amrine Catalog©