20. Ixodes asanumai Kitaoka, 1973 .

Oriental: 1) Japan (Ryukyu Islands); Palearctic: 1) Japan (except the Ryukyu Islands) (Kolonin 2009, Takano et al. 2014, Guglielmone & Robbins 2018).

Camicas et al. (1998) treated Ixodes asanumai as occurring only in the Oriental Region, but this tick had previously been found in the Palearctic Zoogeographic Region, as shown in Kitaoka (1973).