The invention relates to novel compounds of the formula (I) in which R1, R2, R3, R4, R5, R6, R7, R8, A1, A2, A3 and n each 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.本發明係有關新穎之式(I)化合物:其中R1、R2、R3、R4、R5、R6、R7、R8、A1、A2、A3、及n各具有前面給定之意義,作為殺蟎劑及/或殺蟲劑之用途以防治動物害蟲,及其製備之方法與中間物。