Trioserica vientianeTrioserica vientiane is a species of beetle of the family Scarabaeidae. It is found in Laos.DescriptionAdults reach a length of about 6.1–6.4 mm. They have a dark yellowish brown, oblong body, with numerous small dark spots. The antennae and ventral surface are yellow. The dorsal surface is dull and the surface is almost glabrous.EtymologyThe species is named after its known present occurrence in the Vientiane Province.