Empria nigroterga sp. nov. from Chungnam, South Korea: A, C, E–G holotype, YNU-Sym0023 B, D, H–K allotype, YNU-Sym1160 A, B dorsal habitus C, D lateral habitus E, H dorsal head F, I frontal head G ventral abdomen at apex J sternum 9 K claw. Scale bars: 2 mm (A, B); 1 mm (C, D); 0.5 mm (E–J); 0.1 mm (K).