The present invention relates to novel aryloazol-2-yl-cyanoethylamino derivatives substantially enriched in an enantiomer of formula (I):and compounds of formula (IH)wherein R3, R4, R5, R6, R7, R13a, R13b, R14a, R14b, P, Q, V, W, X, Y, Z and a are as defined in the description, compositions thereof, processes for their preparation and their uses as pesticides.本發明係關於新穎芳唑-2-基-氰基乙胺基衍生物,其係實質上富含式(I)鏡像異構物:與式(IH)化合物其中R3,R4,R5,R6,R7,R13a,R13b,R14a,R14b,P,Q,V,W,X,Y,Z及a均如說明文中所定義,其組合物,其製備方法,及其作為除害劑之用途。