PROBLEM TO BE SOLVED: To provide a novel pyrroline derivative showing excellent insecticidal effect as a pesticide.SOLUTION: This invention relates to pyrroline derivatives represented by Formula (I) and the use thereof as the pesticide and animal parasite-controlling agent, wherein each substituent is as defined in the specification.COPYRIGHT: (C)2012,JPO&INPIT【課題】殺虫剤として優れた殺虫効果を示す新規なピロリン誘導体を提供すること。【解決手段】式(I):(各置換基は、明細書に記載のとおり)で表わされるピロリン誘導体並びにそれの殺虫剤及び動物寄生虫防除剤としての利用。【選択図】なし