The invention relates to novel compounds of the formula (I) in welcher R1, R2, R3, A1, X and n have the meanings given above, to their use as acaricides and/or insecticides for controlling animal pests and to processes and intermediates for their preparation.本發明係關於新穎的式(I)化合物其中R1、R2、R3、A1、X及n具有上面提供之意義,及其作為殺蟎劑及/或殺昆蟲劑用於控制動物害蟲之用途及用於製備其之方法與中間物。