| abstract |
A compound of formula (I) wherein A 1 , A 2 , A 3 , A 4 , G 1 , G 2 , R 1 , R 2 , R 3 and R 4 are as defined in claim 1; or a salt or TV- oxide thereof. Furthermore, the present invention relates to processes and intermediates for preparing compounds of formula (I), to insecticidal, acaricidal, nematicidal and molluscicidal compositions comprising them and to methods of using them to combat and control insect, acarine, nematode and mollusc pests. |