Anatatus orientalis (Hymenoptera: Eupelmidae) is aparasitic natural enemy of the lantern-fly Lycorma delicatula (Hemiptera:Fulgoridae) in China. It can complete 6 generations from April to December in a year under laboratory conditions. It takes 18-28 d for development of one generation at about 25℃. Under the room temperatures of 23-25℃, the developmental duration of eggs is 1-2 days, 10 days for larvae, 4 days for prepupae and 7 days for pupa stage. A. orientalisis a mono-parasitic wasp in the eggs of L.delicatula and its female can oviposit 9.18 eggs on average. The oviposition period is 5-20d. The adults can survive 4-7d on average without supplying any nutrition. While feeding with 20% honey solution, the female adult longevity can reach 25 days on average.