54. Ixodes cookei Packard, 1869 .

Nearctic: 1) Canada, 2) Mexico (north), 3) USA; Neotropical: 1) Mexico (south) (Keirans & Clifford 1978, Durden & Keirans 1996, Montiel-Parra et al. 2007, Lindquist et al. 2016).

The presence of Ixodes cookei in the Neotropical Region is based on a male tick collected from the feces of the gray fox, Urocyon cinereoargenteus ( Carnivora: Canidae) by Montiel-Parra et al. (2007). This record was accepted as valid in Guzmán-Cornejo & Robbins (2010), and is treated as provisionally valid in Guglielmone et al. (2021) and here.