Neoserica abnormoides is a species of beetle of the family Scarabaeidae. It is found in Vietnam and China (Zhejiang).
Adults reach a length of about 12.5âÂÂ12.7 mm. They have a dark brown, oblong body. The antennal club is yellowish brown and the anterior labroclypeus is shiny. The dorsal surface is dull and sparsely setose.
The species is named with reference to the externally similar Neoserica abnormis.