Geographic distribution of the hard ticks (Acari: Ixodida: Ixodidae) of the world by countries and territories Author Guglielmone, Alberto A. 0000-0001-5430-2889 guglielmone.alberto@inta.gob.ar Author Nava, Santiago 0000-0001-7791-4239 nava.santiago@inta.gob.ar Author Robbins, Richard G. 0000-0003-2443-5271 robbinsrg@si.edu text Zootaxa 2023 2023-03-07 5251 1 1 274 http://dx.doi.org/10.11646/zootaxa.5251.1.1 journal article 235222 10.11646/zootaxa.5251.1.1 43227427-a867-4744-9e4c-2b2302524890 1175-5326 7704190 3326BF76-A2FB-4244-BA4C-D0AF81F55637 181. Ixodes pavlovskyi Pomerantzev, 1946 . Palearctic: 1) China (north), 2) Japan (except the Ryukyu Islands), 3) Kazakhstan , 4) Kyrgyzstan , 5) Russia ( Takada et al. 1998 , Kolonin 2009 , Fedorova 2012 , Guo et al. 2016 , Perfilyeva et al. 2020 , Tsapko 2020 ). Takada et al. (1998) recorded Ixodes pavlovskyi from the Palearctic portion of China , but its presence there was not recognized by Kolonin (2009) and Chen et al. (2010) . Thereafter, Guo et al. (2016) added specimens of Ixodes pavlovskyi from Palearctic localities in China , and its occurrence there is recognized in Zhang, G. et al. (2019), Zhang, Y.K. et al. (2019), Zhao et al. (2021) and here. Filippova & Panova (1998) divided Russian populations of this tick into two subspecies ( Ixodes pavlovskyi pavlovskyi and Ixodes pavlovskyi occidentalis Filippova & Panova, 1998 ) based on morphological differences between eastern and western specimens, which may indicate the presence of species rather than subspecies under the name Ixodes pavlovskyi .