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 5. Ixodes affinis Neumann, 1899 . Nearctic: 1) USA ; Neotropical: 1) Argentina , 2) Belize , 3) Colombia , 4) Costa Rica , 5) Ecuador , 6) Guatemala , 7) Mexico (south), 8) Panama , 9) Peru ( Cooley & Kohls 1945 , Fairchild et al. 1966 , Keirans & Clifford 1978 , Guzmán-Cornejo & Robbins 2010 , Nadolny & Gaff 2018 , Saracho-Bottero et al. 2020 , Guglielmone et al. 2021 ). The name Ixodes affinis most probably represents a complex of species distributed in the Nearctic and Neotropical Regions ( Saracho-Bottero et al. 2020 ). The Japanese record of Ixodes affinis by Kishida (1930) is considered a diagnostic error ( Yamaguti et al. 1971 , Guglielmone et al. 2021 ).