The present invention relates to a substituted anilide derivative represented by general formula (I): ##STR00001## (wherein R.sup.1 is a hydrogen atom, a (C.sub.1-C.sub.6)alkyl group, a halo(C.sub.1-C.sub.6)alkyl group or the like; R.sup.2 is a hydrogen atom, a halogen atom or a halo(C.sub.1-C.sub.6)alkyl group; R.sup.3 is a hydrogen atom, a halogen atom, a (C.sub.1-C.sub.6)alkyl group or the like; t is 0 or 1; m is an integer of 0 to 6; each of Xs is a (C.sub.2-C.sub.8)alkyl group, a (C.sub.1-C.sub.8)alkoxy group or the like in the case of t being 0, and is a halogen atom, a cyano group or the like in the case of t being 1; n is an integer of 1 to 4; Z is O or S; and Q is any of Q1 to Q25), an intermediate thereof, an agricultural and horticultural chemical, and a usage of the same.