This study aimed to determine changes in the species diversity of butterflies after fire in Pinus brutia forests. At four study sites representing different successional stages, butterflies were sampled by line transect method using sweep nets and by visual observation. In total, 18 species and 114 individuals were found at all sites. Although the species richness and species diversity of butterflies were higher in middle successional stages, abundance decreased with successional age. The changes in butterfly abundance, species richness and diversity with successional age resulted mostly from structural differences in the vegetation.