DOI: https://doi.org/10.1515/vzoo-2017-0052
In 2010, Pentamerismus taxi (Haller, 1877) was revealed in the Acad. O. V. Fomin Botanical Garden (Kyiv). This is the northernmost border (51°31'N) of expansion of this phytophage in Ukraine. The mite most severely infests Taxus baccata L. plants and all varieties of this species. This mite has not been found on the plants of T. canadensis March. and T. cuspidata Siebold et Zucc. ex Endl. Appearance of a new dangerous pest requires further close study of this species.