PROBLEM TO BE SOLVED: To provide novel arylpyrrolidines exhibiting excellent insecticidal effects as an insecticide.SOLUTION: The arylpyrrolidines are represented by formula (I). Furthermore, utilization thereof as an insecticide and as a control agent against animal parasites is provided.【課題】殺虫剤として優れた殺虫効果を示す新規なアリールピロリジン類を提供すること。【解決手段】式(I):(各置換基は、明細書に記載のとおり)で表わされるアリールピロリジン類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