Substituted pyrazinecarboxylic acid anilide derivatives represented by the general formula (I) or salts thereof； intermediates of them； pesticides (such as insecticides and acaricides) for agricultural and horticultural use, containing the compounds as the active ingredient； and usage thereof: wherein R 1 is H, C 1-6 alkyl, halo C 1-6 alkyl, or the like； R 2 is halogeno, C 1-6 alkyl, or the like； G is C 2-10 alkyl or the like； Z is oxygen or sulfur； X's are each independently H, halogeno, or the like； Y's are each independently H, halogeno, cyano, or the like； and m and n are each an integer of 1 to 3.
