This invention provides compounds of Formula (1), their N-oxides and agriculturally suitable salts wherein A, B, J, R
1
, R
2
, R
3
and R
4
and n are as defined in the disclosure. Also disclosed are methods for controlling arthropods comprising contacting the arthropods or their environment with an arthropodicidally effective amount of a compound of Formula (1) and compositions containing the compounds of Formula (1).