Neoserica nigrosetosaNeoserica nigrosetosa is a species of beetle of the family Scarabaeidae. It is found in Vietnam.DescriptionAdults reach a length of about 7.6 mm. They have a black, short-oval body. Part of the upper surface has a greenish shimmer. They are mostly dull with dense light hairs, interspersed with dense, long, strong, dark hairs. The underside is densely haired.