An insecticidal compound of formula Iwherein X is O or NR11 where R11 is hydrogen, optionally substituted alkyl, optionally substituted aryl or optionally substituted heteroarylY is a single bond, C═O, C═S or S(O)m where m is 0, 1 or 2R1, R2, R3, R4, R8 and Ra are specified organic groups and p is 0, 1, 2, 3, 4, 5 or 6q is 0, 1, 2, 3, 4, 5 or 6 provided that p+q is 1, 2, 3, 4, 5 or 6 or salts or N-oxides thereofcompositions containing them and their using in controlling insects, acarines, nematodes or molluscs.
