A study of the Exoprosopa busiris (Jaennicke) group of Bezzi (1924) in tropical Africa (Diptera: Bombyliidae)

The tropical African species of the genus Exoprosopa Macquart placed by Bezzi (1924) in his group 10, E. busiris are reviewed. A key, short diagnoses and outline distributions are provided for each species. E. albonigra Bezzi and E. saskae Szilády are shown to be synonyms of E. luteicosta Bezzi; E. engyoptera Hesse a synonym of E. brevinasis Bezzi; and E. ferrieri Hesse a synonym of E. decastroi Hesse. Two new species are described; E. selenops from Kenya and E. glossops from Nigeria.