604060 Disclosed are arylpyrrolidines compounds which exhibit excellent insecticidal efficacy and which may be used as in the agrochemical field or in the field of veterinary medicine. The compounds are represented by formula (I): wherein the respective substituents are defined in the specification. Where G is CONR1R2 or CSNR1R2 and the other substituents are as disclosed in the specification. Compounds of Formula (I) are useful as pesticides in agriculture or as a pharmaceutical for treating parasites in or on animals.