Neoserica sapaensis is a species of beetle of the family Scarabaeidae. It is found in China (Yunnan) and Vietnam.
Adults reach a length of about 8.9âÂÂ9.9 mm. They have a dark reddish brown, oblong body. The antennal club is yellowish brown. The dorsal surface is dull and nearly glabrous, except for a few long setae on the head.
The species is named according to its type locality Sa Pa (Vietnam).