Key to species of Afrosyrphus Curran, 1927

1. Females: eyes separated above antennae (dichoptic) (Fig. 4B)........................................................3

– Males: eyes joined above antennae (holoptic) (Figs 3B, 4 C–D)......................................................2

2. Hind first tarsomere without long, black pile (Fig. 5B). Abdominal tergites 2–4 dark pilose medially and pale pilose laterally, except tergites 2 and 3 pale pilose on anterior margin; tergite 5 dull, pruinose (Fig. 3B, D). Scutellum mostly dark pilose, with some pale pile on anterior and posterior margins (Fig. 3B, D). Ventral calypter fringe with dark pile. Frontal triangle shiny medially, with black pruinosity along eye margin and dorsally (appearing entirely shiny, black; Fig. 4C). Genitalia as in Fig. 5 F–H (Kenya, Uganda) .................................... A. schmuttereri sp. nov.

– Hind first tarsomere with long, black pile on basal ¼ (Fig. 5A). Abdominal tergites 2–4 entirely pale pilose; tergite 5 shiny (Fig. 3A, C). Scutellum mostly pale pilose, with seldom dark pile (Fig. 3A, C). Ventral calypter fringe with pale pile. Frontal triangle shiny medially, with pale pruinosity along eye margin (Fig. 4D). Genitalia as in Fig. 5 C–E (Cameroon, DRC, Uganda, Angola?, South Africa?) ............................................................................................. A. varipes Curran, 1927

3. Hind first tarsomere without long, black pile (Fig. 5B). Tergite 2 with black fascia on posterior margin (Fig. 4B). Face dark in background colour (Kenya, Uganda) ............ A. schmuttereri sp. nov.

– Hind first tarsomere with long, black pile on basal ¼ (Fig. 5A). Tergite 2 entirely orange (Fig. 4A). Face paler, orange in background colour (Cameroon, DRC, Uganda, Angola?, South Africa?) ................................................................................................ A. varipes Curran, 1927