Trioserica chuyangsin is a species of beetle of the family Scarabaeidae.BioLib It is found in Vietnam.
Description Adults reach a length of about 5.8 mm. They have a light reddish brown, oblong body. The frons and pronotum are darker brown and the elytra have indistinct, small dark spots. The antennae are yellow. The dorsal surface is dull and the surface is almost glabrous.
Etymology The species is named after its type locality, Chu Yang Sin national park.
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