Compounds of the formula ##STR1## wherein R.sub.1 represents hydrogen, halogen, C.sub.1 -C.sub.4 -alkyl, vinyl or ethynyl,R.sub.2 represents hydrogen, halogen, methyl or ethyl, orR.sub.1 and R.sub.2 together represent the cyclopentyl or cyclohexy ring,R.sub.3 represents hydrogen, halogen, methyl, ethyl or C.sub.1 -C.sub.4 -alkoxy,R.sub.4 represents hydrogen, halogen or methyl,R.sub.5 represents hydrogen or halogen, orR.sub.3 and R.sub.5 together represent a carbon-carbon-bond, or an oxygen bridge,R.sub.6 represents hydrogen, methyl or ethyl,R.sub.7 represents cyclohexyl or the group ##STR2## R.sub.8 represents hydrogen, halogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy,Y represents oxygen or the group ##STR3## whereby the ##STR4## group is bound to the phenyl ring, Z represents hydrogen or methyl, andm and n each represent the number 0 or 1A method for their manufacture and their use for the control of insects and members of the order acarina are disclosed.