the invention relates to compositions comprising (a) at least one compound selected from compounds of formula (1), their n-oxides, and salts thereof, wherein r1 represents a phenyl group optionally substituted by a substituent selected from among up to five independent groups of r3.or a group pyridinyle eventually substituted by up to 4 substituents selected from the group of r3, r2 represents a group halog u00e9noalkyle c1 - c4; or a group pyridinyle pyrimidinyle thiazolyl, or each may be substituted by up to 2 substituents independently selected from the consisting of a halogen atom or an alkyl group.each r3 independently represents a halogen atom, a cyano group, a c1-c4 alkyl, alkoxy halog u00e9noalkyle c1 c4, c1 - c4, c1 - c4 halog u00e9noalcoxy c (r4) = nor4 or q; each r4 is independently an alkyl group in the c1 - c4; z is ch = ch or s, and q is 1 nd u00e9pendamment a phenyl group or pyridinyle.each may be substituted by a substituent selected from up to three independent set consisting of a halogen atom, a cyano group, a c1-c4 alkyl, c1-c4 alkoxy halog u00e9noalkyle in c1, c4, c1 - c4 halog u00e9noalcoxy; and (b) at least one agent to control. isibles invertebrates.it is also a process of pest control also is put in contact with the negative or the environment quantity also biologically effective composition of the invention.L'invention concerne des compositions comprenant (a) au moins un composé choisi parmi des composés de formules (1), leurs n-oxydes et leurs sels, dans laquelle r1 représente un groupe phényle éventuellement substitué par jusqu'à 5 substituants indépendamment choisis parmi les groupes r3, ou un groupe pyridinyle éventuellement substitué par jusqu'à 4 substituants choisis parmi les groupes r3 ; r2 représente un groupe halogénoalkyle en c1-c4 ; ou un groupe thiazolyle, pyridinyle ou pyrimidinyle, chacun étant éventuellement substitué par jusqu'à 2 substituants indépendamment choisis dans l'ensemble consistant en un atome d'halogène et un gro