The invention relates to novel .DELTA..sup.1-pyrrolines of the formula (I) ##STR00001## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, A.sup.1, A.sup.2, R.sup.5, R.sup.6, R.sup.7, R.sup.8, R.sup.9 and Q are as defined in the disclosure, to a process for preparing these compounds and to their use for controlling pests.