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 45. Amblyomma geayi Neumann, 1899 . Neotropical: 1) Brazil , 2) Colombia , 3) Costa Rica , 4) French Guiana, 5) Guyana , 6) Panama , 7) Peru , 8) Suriname , 9) Venezuela ( Floch & Fauran 1958 , Fairchild et al. 1966 , Keirans 1985 b , Clavijo et al. 2009, Labruna et al. 2009 , Miller et al. 2016 , Dolz et al. 2019 , Acevedo-Gutiérrez et al. 2020 , Guglielmone et al. 2021 ). In Brazil , adults of Amblyomma geayi and Amblyomma parkeri have sometimes been confused with those of Amblyomma longirostre , and some specimens classified as Amblyomma geayi were later identified as Amblyomma parkeri ( Labruna et al. 2009 ) . The nymphs of these species are also morphologically similar ( Martins et al. 2010 , 2013); therefore, additional confusion of nymphs (and larvae) has probably occurred.