Effects of fragments of native forest between Eucalyptus spp. stands on the Lepidoptera community was studied. A total of 790 morphospecies was collected at five sites along a transect: a residual forest and its edge, and into Eucalyptus spp. plantation (at 200, 400 and 600 m from the edge). The residual forest and its edge showed similar numbers of moth species, but these were significantly larger than those of the sites in the Eucalyptus plantation. Cluster analysis indicated that the sites with eucalyptus have a more similarly structured moth community when compared to these of residual forest and its border.