The present invention relates to novel compounds of the formula (I), in which X, R1, R2, R3 and n have the definitions given below, to the use thereof as acaricides and/or insecticides for controlling animal pests and to methods and intermediates for the preparation thereof.本發明關於新穎式(I)化合物, 其中X、R1、R2、R3和n具有下文所給出之意義,關於彼等作為殺蟎劑及/或殺昆蟲劑以控制動物害蟲之用途及用於彼等製備之方法和中間物。