Key to the Korean species of Epyris

Males (unknown in E. asura, E. dulicus, E. breviclypeatus, E. jeonbukensis)

1 Flagellomeres 2–10 pectinate, flagellomere 1 wider than long............................... 15. E. sauteri (Enderlein)

- Flagellomeres 2–10 filiform, flagellomere 1 longer than wide.................................................... 2

2 Scutellar pit oval, separated from each other by more than 1.0 × as its maximum diameter............................. 3

- Scutellar pit subrectangular, separated from each other by thin septum or less than 0.5 × as its maximum diameter......... 10

3 Propodeal disc without submedian discal carinae; length of metacarpus longer than 0.5 × as long as pterostigma............ 4

- Propodeal disc with submedian discal carinae; length of metacarpus as long as or shorter than 0.5 × as long as pterostigma.. 8

4 Head longer than wide; anterior margin of clypeus round; basal area of propodeal disc strongly coriaceous..................................................................................................... 2. E. darani Terayama

- Head as long as wide; anterior margin of clypeus angulate; basal area of propodeal disc smooth with irregular rugae......... 5

5 Mandible with single tooth; head and pronotal disc moderately punctate............................................ 6

- Mandible with four teeth; head and pronotal disc with very small and shallow punctures. 1. E. aequalis Lim et S. Lee, sp. nov.

6 Propodeal disc almost as long as wide; leg light castaneous except basal coxa castaneous............. 4. E. idaten Terayama

- Propodeal disc distinctly wider than long; leg light castaneous except coxa, femora dark castaneous..................... 7

7 Propodeal disc with basal "V"-shaped depressed area; sublateral area with narrow distinct transverse rugae..................................................................................... 8. E. mureungensis Lim et S. Lee, sp. nov.

- Propodeal disc with basal "U"-shaped depressed area; sublateral area without distinct transverse rugae............................................................................................. 10. E. finitus Lim et S. Lee, sp. nov.

8 Mandible with single tooth................................................................................ 9

- Mandible with five teeth................................................................ 9. E. niwoh Terayama

9 Head and pronotal disc with smooth interspace without micro-reticulation; antenna black..................................................................................................... 6. E. limatulus Lim et S. Lee, sp. nov.

- Head and pronotal disc coriaceous; antenna castaneous................................... 3. E. hangunensis Terayama

10 Head and pronotal disc with large punctures; metacarpus absent............................. 11. E. yamatonis Terayama

- Head and pronotal disc with small and shallow punctures; metacarpus present...................................... 11

11 Flagellomere 11 4.5 × as long as wide; metacarpus shorter than pterostigma..... 7. E. longiantennatus Lim et S. Lee, sp. nov.

- Flagellomere 11 3.0 × as long as wide; metacarpus longer than pterostigma........................5. E. fuscipes (Kieffer)