Neoserica yanzigouensis is a species of beetle of the family Scarabaeidae. It is found in China (Sichuan).
Adults reach a length of about 8.2âÂÂ9.6 mm. They have a dark reddish brown, oblong body. The antennal club is yellowish brown and the dorsal surface is dull and nearly glabrous, except for a few long setae on the head.
The species is named after its type locality, Yanzigou.