Nipponoserica koltzei is a species of beetle of the family Scarabaeidae. It is found in China (Gansu, Heilongjiang, Henan, Shaanxi, Xizang), South Korea and the Russian Far East.
Adults reach a length of about 6.5âÂÂ8.5 mm. They have a yellowish brown to dark brown, cylindrical, velvety body. The antennae are yellow.