Description of a new vagrant Aceria species (Acari: Eriophyidae) on Artemisia scoparia Waldst. & Kit. (Asteraceae) in northwest Iran and a key to the world species associated with Artemisia spp.

To fill the gap of eriophyoid mites in Iran, a field survey was carried out in northwest Iran (Aras dam lake, West Azerbaijan Province), in summer 2022. As a result, a new vagrant Aceria species (Acari: Eriophyoidea: Eriophyidae) associated with Artemisia scoparia Waldst. & Kit. (Asteraceae) was discovered. The new species is illustrated and described herein as Aceria artemiparia sp. n. No apparent damage was observed on the host. This is the second report of an eriophyoid mite species associated to A. scoparia host plant. Aceria artemiparia sp. n. is unique among 24 Aceria spp. associated with Artemisia species by having a smooth prodorsal shield and 8–rayed empodium. Furthermore, we provided a checklist and morphological key of eriophyoid mites associated with Artemisia spp. of the world.