Trioserica sekongensis is a species of beetle of the family Scarabaeidae.BioLib It is found in Laos.

Description Adults reach a length of about 6.4–7.1 mm. They have a short oval body. The dorsal surface is dark brown and the ventral surface is red brown. The labroclypeus and some spots on the elytra are a little lighter and the antennae are yellow. The dorsal surface is dull and the surface is almost glabrous.

Etymology The species is named after its occurrence in the Sekong province.

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