Gastroserica quateorumGastroserica quateorum is a species of beetle of the family Scarabaeidae. It is found in Vietnam.DescriptionAdults reach a length of about 5.2 mm. They have a brown, oval body. The head, legs, antennae,anterior parts of the elytra and margins and a median line of the pronotum are yellowish. The dorsal surface is iridescent shiny, partly dull and nearly glabrous.