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 135. Haemaphysalis quadriaculeata Kolonin, 1992b . Oriental: 1) China (south), 2) Vietnam ( Kolonin 1995b , Keirans & Robbins 1999 , Xu & Sun 2016 , Zhao et al. 2021 ). Camicas et al. (1998) and Kolonin (2003 , 2009 ) believed that Haemaphysalis darjeeling in Tanskul & Inlao (1989) is in fact Haemaphysalis quadriaculeata , and Thailand is included within the range of this tick in Kolonin (2009) , and also in Xu & Sun (2016) and Petney et al. (2019) . The decision by Xu & Sun (2016) to support the view that Haemaphysalis darjeeling in Tanskul & Inlao (1989) is equivalent to Haemaphysalis quadriaculeata was unexpected because Xu & Sun (2016) described a male of Haemaphysalis quadriaculeata from China that is morphologically unlike the male of Haemaphysalis darjeeling from Thailand in Tanskul & Inlao (1989) . Guglielmone et al. (2020) stated that the description of Haemaphysalis darjeeling in Tanskul & Inlao (1989) closely matches its original description, and Thailand is provisionally excluded from the range of Haemaphysalis quadriaculeata . Redescriptions of both species would be a useful contribution.