Compounds of formula (I) wherein m is 0 or 1; Z is methine or nitrogen; X is oxygen or sulfur, R1 is C1-C6-alkyl, halo-C1-C6-alkyl, C3-C6-cycloalkyl or C2-C6-alkynyl; R2 is C1-C6-alkyl, C1-C6-haloalkyl, C3-C6-cycloalkyl, halo-C3-C6-cycloalkyl, fluoro, chloro or bromo; R3 is C1-C3-alkyl; R4 is hydrogen, C1-C6-alkyl, fluoro, chloro, bromo or cyano; Y is CN, COOR9 or CONHR6; n is 0, 1 or 2; R5 is hydrogen, fluoro, chloro or bromo; R6 is C1-C4-alkyl; R9 is C1-C4-alkyl; R10 and R11 are, independently from each other, hydrogen, C1-C3-alkyl or C1-C3-alkoxy; or R10 and R11 taken together form with the carbon atom to which they are bonded a C3-C6-carbocyclic ring; or R10 and R11 taken together form a ketone or a ═NOR12 group; and R12 is hydrogen or C1-C4-alkyl; and agrochemically acceptable salts and enantiomers of those compounds can be used as insecticides an can be prepared in a manner known per se.