Disclosed are compounds of Formula 1, including all geometric and stereoisomers, N-oxides, and salts thereof, (I) wherein A, X1, X2, X3 and X4 are as defined in the disclosure. Also disclosed are compositions containing the compounds of Formula 1 and methods for controlling an invertebrate pest comprising contacting the invertebrate pest or its environment with a biologically effective amount of a compound or a composition of the invention.