76. Rhipicephalus simpsoni Nuttall, 1910 .
Afrotropical: 1) Benin, 2) Burkina Faso, 3) Cameroon, 4) Central African Republic, 5) Congo, 6) Democratic Republic of the Congo, 7) Gabon, 8) Ghana, 9) Guinea, 10) Ivory Coast, 11) Kenya, 12) Liberia, 13) Malawi, 14) Mali (south), 15) Mozambique, 16) Nigeria, 17) South Africa, 18) South Sudan, 19) Tanzania, 20) Togo, 21) Uganda, 22) Zambia, 23) Zimbabwe (Morel & Mouchet 1965, Aeschlimann 1967, Walker 1974, Morel 1978, Norval 1985 b, Matthysse & Colbo 1987, Konstantinov et al. 1990, Walker et al. 2000, Ntiamoa-Baidu et al. 2004, Kolonin 2009, Pourrut et al. 2011, ElGhali & Hassan 2012, Uilenberg et al. 2013, Horak et al. 2018).
Mossaad et al. (2021) stated that Rhipicephalus simpsoni has been found in Sudan (Khartoum), where its usual host is absent. Therefore, the presence of this species in Sudan requires confirmation.