Gastroserica hiulcaGastroserica hiulca is a species of beetle of the family Scarabaeidae. It is found in China and Vietnam.DescriptionAdults reach a length of about 5.4 mm. They have a yellowish brown, oval body. The head, center of the pronotum and ventral surface are darker brown. The dorsal surface is iridescent shiny or sometimes dull and nearly glabrous.