1. Body dark brown......................................................................................2
- Body pale brown; (pronotal margin pale brown laterally, hemelytra with large dark and white spot, margin of hemelytra without dark punctures).................................................. G. lynceus
2. Pronotal margin dark brown laterally, hemelytra with small dark spot............................. G. koreanus sp. nov.
- Pronotal margin reddish brown laterally, hemelytra with large dark spot................................... G. validus