The invention is directed to arylpyrrolidines compounds which exhibit excellent insecticidal efficacy and which may be used as in the agrochemical field or in the vield of veterinary medicine. The compounds are represented by formula (I):wherein the respective substituents are defined in the specification.本發明係關於顯示極佳殺蟲效力且其可使用於農藥領域或獸醫學領域之芳基吡咯啶類化合物。化合物係以式(I)表示:其中代表取代基係定義於說明書中。