The invention relates to novel compounds of the formula (I) in which Aa, Ab, Ac, Ad, R1, R2, R3, Q and n have the meanings given above, to the use thereof as acaricides and/or insecticides for controlling animal pests and to processes and intermediates for the preparation thereof.本發明係關於新穎的式(I)化合物其中Aa、Ab、Ac、Ad、R1、R2、R3、Q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。