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 31. Ixodes berlesei Birula, 1895 . Palearctic: 1) China (north), 2) Kazakhstan , 3) Kyrgyzstan , 4) Mongolia , 5) Nepal (north and central), 6) Russia , 7) Tajikistan , 8) Turkmenistan ( Filippova 1977 , Kolonin 2009 , Federova 2012, Chen et al. 2010 , Kiefer et al. 2010 , Pun et al. 2018 , Tsapko 2020 ). There are morphological differences between the description of the female of Ixodes berlesei in Yu et al. (1997) and the descriptions of other workers; as well, the larva of this tick in Clifford et al. (1975a) differs from the larva depicted in Filippova (1958 , 1997). Clifford et al. (1975a) classified their specimens from Nepal as Ixodes berlesei or a species close to it. According to Filippova (1997) , the name Ixodes berlesei has been applied to different species, such as Ixodes caledonicus . The presence of Ixodes berlesei in Mongolia is based on Kiefer et al. (2010) , but this was not recognized by Černý, J. et al. (2019), while Perfilyeva et al. (2020) did not list Ixodes berlesei as present in Kazakhstan , but it was recorded from that country by Kolonin (2009) and others. Mongolia and Kazakhstan are provisionally included within the geographic distribution of Ixodes berlesei .