Neoserica allosigillata is a species of beetle of the family Scarabaeidae. It is found in Vietnam.
Adults reach a length of about 5.1âÂÂ6.1 mm. They have a reddish brown, oval body. The antennal club and ventral surface are yellowish. The dorsal surface is mostly dull and nearly glabrous.
The species name is derived from Greek allo- (meaning different) and the species name sigillata and refers to the similar shape of the parameres of Neoserica sigillata.