100. Ixodes hearlei Gregson, 1941 .

Nearctic: 1) Canada, 2) Mexico (north), 3) USA (Keirans & Clifford 1978, Durden & Keirans 1996, Lindquist et al. 2016, López-Pérez et al. 2019).

Ixodes hearlei was confused with Ixodes marxi prior to its description by Gregson (1941).