Trioserica vriesi is a species of beetle of the family Scarabaeidae.BioLib It is found in Vietnam.
Description Adults reach a length of about 5.9–6 mm. They have a dark brown, oblong body. The legs, ventral surface, labroclypeus and elytral striae are red brown and the antennae are yellow. The dorsal surface is dull and the surface is almost glabrous.
Etymology The species is named after one of its collectors, R. de Vries.
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