Carabus smaragdinus  Carabus smaragdinus is a species of beetle belonging to the family Carabidae. "Carabus smaragdinus" can reach a length of about . Body is quite slender and the surface is metallic green or reddish coppery, depending on subspecies. Elytra are broad, robust and longitudinally crossed by rows of small dotted points like bumps. Adults can be found from May through September. They mainly eat small creatures like the earthworm. This species is native to the Far East. It can be found in North and South Korea, and in China; from Inner Mongolia to Jilin and Henan to the east and Shanxi to the west.