The invention provides compounds represented by the formula (1)

##STR00001##

wherein X and Y are oxygen atoms or sulfur atoms, Z is a hydroxyl group or the like, R.sup.1 and R.sup.2 are alkyl groups and the like, R.sup.4 and R.sup.5 are alkyl groups and the like, R.sup.3 and R.sup.6 are hydrogen atoms and the like, R.sup.7 is a substituted phenyl group or the like, and Q is an aryl group or the like, or salts thereof, pest control agents containing the compounds as active ingredients, and methods for use thereof.