PROBLEM TO BE SOLVED: To provide a novel cyclic depsipeptide derivative and a pest control agent comprising the same.SOLUTION: The present invention provides a cyclic depsipeptide derivative represented by formula (1) or a stereoisomer thereof, and a pest control agent for agricultural and horticultural use and a parasite control agent for animals comprising the same.SELECTED DRAWING: NoneCOPYRIGHT: (C)2017,JPO&INPIT【課題】新規の環状デプシペプチド誘導体及びそれを含んでなる有害生物防除剤の提供。【解決手段】式(1)で表わされる環状デプシペプチド誘導体又はその立体異性体、及びそれを含んでなる、農園芸用有害生物防除剤、並びに動物用寄生虫防除剤。【選択図】なし