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 133. Amblyomma varium Koch, 1844a . Neotropical: 1) Brazil , 2) Colombia , 3) Costa Rica , 4) Ecuador , 5) French Guiana, 6) Guatemala , 7) Guyana , 8) Nicaragua , 9) Panama , 10) Peru , 11) Suriname , 12) Venezuela ( Robinson 1926, Jones et al. 1972 , Need et al. 1991 , Alvarez et al. 2005 , Miller et al. 2016 , Witter et al. 2016 , Binetruy et al. 2019 , Acevedo-Gutiérrez et al. 2020 , Enríquez et al. 2020 , Guglielmone et al. 2021 ). Neumann (1899 , 1901 ) allegedly found Amblyomma varium in Chile and Argentina , records that were later repeated by several authors, but those countries are outside the range of this tick, as discussed in Onofrio et al. (2008) and Nava et al. (2017) . Vargas (1955) included Mexico within the geographic distribution of Amblyomma varium , but its presence in that country was not supported by Guzmán-Cornejo et al. (2011) .