15. Ixodes apronophorus Schulze, 1924 .

Palearctic: 1) Austria, 2) Belarus, 3) Belgium, 4) China (north), 5) Czechia, 6) Denmark, 7) Estonia, 8) France, 9) Germany, 10) Great Britain, 11) Hungary, 12) Kazakhstan, 13) Kyrgyzstan, 14) Latvia, 15) Lithuania, 16) Moldova, 17) Netherlands, 18) Poland, 19) Romania, 20) Russia, 21) Slovakia, 22) Switzerland, 23) Ukraine (Feider 1965, Filippova 1977, Martyn 1988, Jaenson et al. 1994, Kolonin 2009, Paulaskas et al. 2010, Nowak-Chmura & Siuda 2012, Fedorova 2017, Petney et al. 2012, Guo et al. 2016, Estrada-Peña et al. 2017, Hornok et al. 2020 a, Perfilyeva et al. 2020, Tsapko 2020, Rubel et al. 2021, Rubel & Brugger 2022).

Several records of Ixodes apronophorus have been published under the name Ixodes arvicolae, described by Warburton (1926), a synonym of Ixodes apronophorus, as detailed in Guglielmone & Nava (2014).

The presence of Ixodes apronophorus in northern China was reported first by Guo et al. (2016), and its presence there was recognized in Zhang, G. et al. (2019), Zhang, Y.K. et al. (2019) and here, but not in Zhao et al. (2021). China (north) is provisionally included within the range of Ixodes apronophorus .

Andersson et al. (2018) and Rar et al. (2020) found molecular and morphological differences between Russian and Romanian populations of Ixodes apronophorus, indicating that more than one species may exist under this name.