Key to the species of Goniozus in Korea (females)

1. Fore wing with areolet................................................................................. 2

- Fore wing without areolet.............................................................................. 4

2. Head thin in lateral view; postero-ventral corner of head gently rounded, not produced angle in lateral view............................................................................................ G. akitsushimanus Terayama

- Head thick in lateral view; postero-ventral corner of head forming blunt angle in lateral view.......................... 3

3. Scape 2.2 × as long as wide; propodeal disc 0.5 × as long as wide, lateral margin convex........ G. mesolevis Lim, sp. nov.

- Scape 1.7 × as long as wide; propodeal disc 0.7 × as long as wide, lateral margin straight.......... G. yoshikawai Terayama

4. Each segment from pedicel to flagellomere 2 longer than 1.5 × as long as wide, respectively; median and submedian cell with few hairs.......................................................................... G. japonicus Ashmead

- Each segment from pedicel to flagellomere 2 shorter than 1.5 × as long as wide, respectively; median and submedian cell with- out hairs........................................................................ G. koreanus Lim, sp. nov.