The present invention provides compounds of formula (I) wherein G1 is oxygen R1 is hydrogen R2 is group (P) L is a bond, methylene or ethylene one of A1 and A2 is S, SO or SO2 and the other is &mdashC(R4)R4&mdash R3 is hydrogen or methyl each R4 is independently hydrogen or methyl Y2 and Y3 are independently CH or nitrogen, wherein Y2 and Y3 are not both nitrogen X2 is C&mdashX6 or nitrogen X1, X3 and X6 are independently hydrogen, halogen or trihalomethyl, wherein at least two of X1, X3 and X6 are not hydrogen X4 is trifluoromethyl, difluoromethyl or chlorodifluoromethyl. The invention also provides intermediates useful for the preparation of compounds of formula (I), as well as methods of controlling insects, acarines, nematodes or molluscs using the compounds of formula (I).
