This paper reports the synthesis and the insecticidal activities of so
me N-benzoyl-N'-arylureas 4-arylsubstituted with alkylated or halogena
ted aroyl moieties. The compounds, tested against some representative
insect species, displayed very high activity against Aedes aegypti, es
pecially the halosubstituted derivatives. None of the newly synthesize
d compounds showed genotoxic activity in the Bacillus subtilis rec-ass
ay and in the Salmonella-microsome test.