Disclosed are compounds of Formula 1, N-oxides, and salts thereof, wherein Q, X, Y, A1, A2, L, R1, R2, R3, R4, R5, R6a, R6b, R7 and R8 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 disclosure.