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 7. Bothriocroton undatum ( Fabricius, 1775 ) . Australasian: 1) Australia ( Beati et al. 2008 ). Most records of Bothriocroton undatum have been published under the name Aponomma decorosum , and authors such as Kaufman (1972) , Camicas et al. (1998) and Kolonin (2009) have regarded the latter name as valid, an opinion that is not shared here. Kaufman (1972) treated Acarus undatus (the original name for Bothriocroton undatum ) in Fabricius (1775) as invalid. Neumann (1899) described the nymph of Aponomma decorosum under the heading “Nymphe ( Ixodes varani L. Koch ),” which is a synonym of Bothriocroton undatum in Guglielmone & Nava (2014) . Neumann (1899) listed one nymph of this tick found on an unknown host, collected on a Fiji island, a record treated as valid in Santos Dias (1993b) but that requires confirmation. Schulze (1933a) listed Aponomma undatum as having been collected from that part of Indonesia belonging to the Oriental Zoogeographic Region; however, Guglielmone et al. (2017) are unconvinced that the specimens described in Schulze (1933a) correspond with bona fide Bothriocroton undatum . Consequently, Oriental Indonesia is not included within the range of this tick.