Certain novel N,N-di(heteroarylalkyl)amine derivatives have provided unexpected insecticidal and acaricidal activity. These compounds are represented by formula (I): wherein Ar Ar
1
, a, b, c, R, R
d
, R
e
, R
f
, Rg, R
h
, R′, R
3
and R
k
are fully described herein. In addition, compositions comprising an insecticidally effective amount of at least one compound of formula I, and optionally, an effective amount of at least one of a second compound, with at least one insecticidally compatible carrier are also disclosed; along with methods of controlling insects comprising applying said compositions to a locus where insects are present or are expected to be present.