Ixodes brunneus Koch, 1844a

Guglielmone, Alberto A., Nava, Santiago & Robbins, Richard G., 2023, Geographic distribution of the hard ticks (Acari: Ixodida: Ixodidae) of the world by countries and territories, Zootaxa 5251 (1), pp. 1-274 : 11

38. Ixodes brunneus Koch, 1844a .

Nearctic: 1) USA ( Keirans & Clifford 1978, Durden & Keirans 1996, Lindquist et al. 2016, Saracho-Bottero et al. 2021, Guglielmone et al. 2021).

Guglielmone et al. (2014, 2020) and Guglielmone & Robbins (2018) treated Ixodes brunneus as a chiefly Nearctic species but with a bona fide record from Venezuela (Neotropical). However, Saracho-Bottero et al. (2021) analyzed Neotropical records of Ixodes brunneus , concluding that this species is not present in the Neotropics. These authors also treated a Ukrainian record of this tick on a migratory bird in Filippova (1977) as a probable new species, but Tsapko (2020) supported the diagnosis of Filippova (1977). Lindquist et al. (2016) stated that specimens of Ixodes brunneus have been collected in Canada, but this tick is not established in that country, restricting its Nearctic distribution to the USA.