Compounds having the formula RXY-R3 PARALLEL ANGLE C=N-O-P ANGLE R1R2 in which X is oxygen or sulfur; Y is oxygen or sulfur; R is alkyl; R1 is alkyl; R2 is alkyl or alkoxy and R3 is (1) phenyl or (2) mono-, di- or tri-substituted phenyl wherein the substituent is (a) nitro, (b) cyano, (c) halogen, O PARALLEL (d) C-R4 wherein R4 is alkyl, (e) CF3, (f) SO2NHR5 wherein R5 is alkyl or (g) thiomethyl used as as insecticides and acaricides are disclosed.