The present invention provides a heterocyclic amide compound of Formula (1), and an agricultural chemical containing it, particularly a herbicide: in which Q is an aromatic heterocycle of any one of Q-1 to Q-5, W is an aromatic heterocycle oft-1, W-2, or W-3, X is an oxygen atom, etc., R 1a is a hydrogen atom, a halogen atom, or C 1-6 alkyl, etc., R 1b is a hydrogen atom, R 1c is C 1-6 alkyl, R 2a is a halogen atom, or C 1-6 alkyl, etc., R 2c is C 1-6 haloalkyl, R 3 is a hydrogen atom, etc., R 4a , R 4b , R 4c and R 4d are each independently a hydrogen atom, or C 1-6 alkyl, etc., R 5a , R 5b and R 5c are each independently a hydrogen atom, or C 1-6 alkyl, etc., and n is an integer of 0, 1, 2 or 3.
