Key to species of Campeprosopa

1. Male eyes touching (Fig. 24), female sternite 2 with a short central subconical prominence (Figs 37–38) ............................................................................................................................... C. longispina (Brunetti)

- Eyes separated by a frontal vitta in both sexes, female sternite 2 without any central prominence...........2

2. Hind tibia black or with a yellow submedian transverse band and hind basitarsus partly, or completely black (Fig. 12), rarely entirely yellow ......................................................................... C . flavipes Macquart

- Hind tibia yellow in basal third at least (Fig. 6) and hind basitarsus always completely black ................... ................................................................................................................................... C . borneensis Lindner