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 17. Ixodes arboricola Schulze & Schlottke, 1929b . Oriental: 1) China (south); Palearctic: 1) Afghanistan , 2) Armenia , 3) Austria , 4) Azerbaijan, 5) Belarus , 6) Belgium , 7) Bulgaria , 8) China (north), 9) Croatia , 10) Czechia , 11) Denmark , 12) Egypt , 13) Estonia , 14) Finland , 15) France , 16) Georgia, 17) Germany , 18) Great Britain , 19) Hungary , 20) Israel , 21) Italy , 22) Kyrgyzstan , 23) Latvia , 24) Lithuania , 25) Moldova , 26) Mongolia , 27) Netherlands , 28) Norway , 29) Poland , 30) Portugal , 31) Romania , 32) Russia , 33) Slovakia , 34) Slovenia , 35) Spain , 36) Sweden , 37) Switzerland , 38) Turkey , 39) Ukraine (Hoogstraal 1973 a, Ogandzhanian 1984 , Martyn 1988 , Jaenson et al. 1994 , Trilar 2004 , Cringoli et al. 2005 , Kolonin 2009 , Paulauskas et al. 2010, Chen et al. 2010 , Kiefer et al. 2010 , Monerris et al. 2011 , Federova 2012, Krčmar 2012 , Nowak-Chmura & Siuda, 2012 , Petney et al. 2012 , Keskin et al. 2014 , Estrada-Peña et al. 2017 , Hornok et al. 2020a , Tsapko 2020 , Rubel et al. 2021 , Rubel & Brugger 2022 , Sormunen et al. 2022 ). The diagnosis of Ixodes arboricola in Clifford & Hoogstraal (1965) was considered tentative by these authors, and there are morphological differences between the redescriptions of this tick by Filippova (1977) and Clifford & Hoogstraal (1965) , as well as between these and other redescriptions, such as those in Yu et al. (1997) , as discussed in Guglielmone et al. (2020) . Consequently, the geographic distribution of Ixodes arboricola should be regarded as provisional. This uncertainty is underscored by the fact that there are several synonyms of Ixodes arboricola , as detailed in Guglielmone & Nava (2014) . Camicas et al. (1998) treated Ixodes arboricola as a Palearctic species, but there are records published after 1998 for the Oriental Zoogeographic Region , specifically the Chinese province of Guangxi recognized in Chen et al. (2010) , Zhang, G. et al. (2019), Zhang, Y.K. et al. (2019), and here. However, Zhao et al. (2021) did not include Guangxi within the range of this tick. The presence of Ixodes arboricola in Mongolia was not recognized in Černý, J. et al. (2019), but this species is tentatively included here as a Mongolian tick. Guglielmone et al. (2014, 2017) believed that more than one species may exist under the name Ixodes arboricola .