Apocleinae, Papavero, 1973

Key to the South Korean genera & species of Apocleinae View in CoL View at ENA treated in this paper

1. Cross vein between R 4 and R 5 positioned basal to the apex of discal cell ( 1m 2) ( Fig. 1 View FIGURES 1–4 ); large ( 19–29 mm) gray flies; females with spines on cerci........................................................................... Philodicus integer View in CoL

- Cross vein between R 4 and R 5 positioned distal to the apex of the discal cell ( 1m 2) ( Figs 2–4 View FIGURES 1–4 ); not gray flies; females without spines on cerci................................................................................... Promachus View in CoL …2

2. Small ( 16–18mm) grey & black flies.................................................................. Promachus nigribarbatus View in CoL

- Much larger ( 22–31 mm) flies with bright yellow abdominal bands; or an overall dark brown color .......3

3. Without striking gold/yellow abdominal bands; overall dark brown or tan colored... Promachus chinensis View in CoL

- Bright yellow abdominal bands ...................................................................................................................4

4. Distal portion of R 4 straight ( Fig. 4 View FIGURES 1–4 ); males with all white dorsal epandrial hair....... Promachus yesonicus View in CoL

- Distal portion of R 4 sinuous/curved ( Fig. 3 View FIGURES 1–4 ); males with white and black dorsal epandrial hair .......................................................................................................................................................... Promachus anicius View in CoL