Glossina palpalis is known to be present in 20 countries in western Africa and central Africa, stretching from
Senegal to
Angola. Data on its occurrence in the peer-reviewed scientific literature for the period 1990–2020 is available for 16 countries;
Cameroon, the
Central African Republic,
Congo,
Côte d'Ivoire, the
Democratic Republic of the Congo,
Equatorial Guinea,
Gabon, the
Gambia,
Ghana,
Guinea,
Mali,
Nigeria,
Senegal and
Togo, while reports from
Benin,
Guinea-Bissau,
Liberia and
Sierra Leone date back to earlier periods, or they have not been published in the peer-reviewed scientific literature. As to the two subspecies of
Glossina palpalis,
Glossina palpalis gambiensis occupies the western part of the range, while
Glossina palpalis palpalis occupies the eastern and southern part.
Glossina palpalis gambiensis Glossina palpalis gambiensis occupies the western part of the distribution of
Glossina palpalis, from Senegal to Ghana. northern Côte d'Ivoire, the Gambia, northern Ghana, Guinea, southern Mali, and Senegal. The single report from Nigeria, which is based only on molecular identification techniques and it is located at more than 500 km from the closest confirmed record of
Glossina palpalis gambiensis, would need further evidence for corroboration. Reports from Guinea-Bissau, Liberia, Sierra Leone and Togo do exist, and Togo, while no published record for the period was available for Benin, Guinea, Liberia and Sierra Leone. == References ==