Six Drosophilid species were collected monthly from 1984 to 1991 in La Florida, Santiago, Chile. The resulting time-series were tested for delayed (lag 2) density-dependence by traditional autocorrelation analyses and by fitting the data to Turchin's equation. Both methods detected delayed density-dependence for Drosophila simulans, D. subobscura and Scaptomyza denticauda. No delayed density-dependence was shown for D. melanogaster, D. immigrans and D. pavani. Competitive interactions that occur between the species may explain the presence of delayed-density dependence in the community.