Key to the South Korean genera of Stichopogoninae treated in this paper

1. Cell m3 of wing with a stalk at its base (Fig. 1); facial gibbosity not exceptionally protuberant or promi- nent, low in profile (Fig. 4); small, 3.5– 8 mm, delicate, mostly gray flies .............................. Stichopogon

- Cell m3 of wing without a stalk at its base (Fig. 2)...................................................................................... 2

2. Facial gibbosity protuberant, high in profile, prominent (Fig. 3); larger, robust, dark flies ....... Lasiopogon

- Facial gibbosity not exceptionally protuberant or prominent, low in profile (Fig. 4), similar to Sticho- pogon; delicate, often heavily setose flies .................................................................................. Clinopogon