Anthrax candidulus Hesse, 1956

A black fly with disctinct wing pattern. Scaling almost entirely black, white scaling on abdomen above only conspicuous on sides of tergites 5, 6 and 7 in males and to a lesser extent in females; 4 small white tufts across hind margins of 2 and 3 and two sub-medial ones on 4 and 5.

Description and illustration of wing in:
Hesse, A.J. 1956. A revision of the Bombyliidae (Diptera) of southern Africa. Part II; Part III. Annals of the South African Museum 35.
https://www.biodiversitylibrary.org/page/40844208#page/439/mode/1up
https://www.biodiversitylibrary.org/page/40844208#page/483/mode/1up