TY - JOUR JF - Acarologia T1 - The eriophyid mite Aculops ailanthi Lin, Jin, & Kuang, 1997 (Acariformes: Prostigmata: Eriophyidae) from tree-of-heaven in the United States – new state records and morphological observations VL - 61 IS - 1 SP - 121 EP - 127 PY - 2021 SN - 0044-586X SN - 2107-7207 PB - Les Amis d'Acarologia AU - Skvarla, Michael J. AU - Ochoa, Ron AU - Ulsamer, Andrew AU - Amrine, James UR - https://doi.org/10.24349/acarologia/20214421 DO - 10.24349/acarologia/20214421 DA - 2021-02-12 ET - 2021-02-12 KW - Aculops ailanthi KW - Ailanthus altissima KW - tree-of-heaven KW - invasive pest KW - new state record AB - We report Aculops ailanthi Lin, Jin, & Kuang, 1997 (Acariformes: Trombidiformes: Prostigmata: Eriophyidae) from Pennsylvania and West Virginia, USA; present the first scanning electron micrographs of the species in North America and discuss morphological observations that clarify features observed in slide-mounted specimens, such as the number ridges on female genital flaps; and briefly discuss symptoms and control of an A. ailanthi infestation on greenhouse-grown tree-of-heaven, Ailanthus altissima (Mill.) Swingle (Sapindales: Simaroubaceae). ER -