14. Hyalomma impressum Koch, 1844a .

Afrotropical: 1) Benin, 2) Burkina Faso, 3) Cameroon, 4) Central African Republic, 5) Chad (south), 6) Democratic Republic of the Congo, 7) Ghana, 8) Ivory Coast, 9) Mali (south), 10) Mauritania (south), 11) Niger (south), 12) Nigeria, 13) Senegal, 14) Sudan (Morel 2003, Apanaskevich & Horak 2007, Kolonin 2009, Uilenberg et al. 2013, Okwounu et al. 2021, Ouedraogo et al. 2021a).

Apanaskevich & Horak (2007) explained the difficulties involved in correctly identifying Hyalomma impressum, a species whose morphology had been poorly described prior to the study of these authors, and that has been extensively confused with related species.

There are records of Hyalomma impressum from Algeria, Egypt and India in Djerbough et al. (2012), AbdelShafy et al. (2011) and Ali et al. (2020), among others, but the presence of established populations of Hyalomma impressum in those countries is here regarded as unconfirmed. Shahid et al. (2021) and others allegedly found Hyalomma impressum in Pakistan, but such diagnoses need confirmation.