Microserica caiyangheanaMicroserica caiyangheana is a species of beetle of the family Scarabaeidae. It is found in China.DescriptionAdults reach a length of about 5.4–5.6 mm. They have a yellowish brown, oval body, with the lateral intervals, frons, two large pairs of spots on the pronotum and multiple dots on the elytra brown. The dorsal surface is dull and nearly glabrous.EtymologyThe species name is derived from the type locality, the Caiyanghe River.