Tetraserica semiruiliensisTetraserica semiruiliensis is a species of beetle of the family Scarabaeidae. It is found in Cambodia and Thailand.DescriptionAdults reach a length of about 9.5–10 mm. The surface of the labroclypeus and the disc of the frons are glabrous. The smooth area anterior to the eye is twice as wide as long.EtymologyThe species name is derived from Latin semi- and the species name ruiliensis and refers to its similarity to Tetraserica ruiliensis.