Butterflies (Lepidoptera, Papilionoidea and Hesperioidea) of the "Baixada Santista" region, coastal S？o Paulo, southeastern Brazil

butterflies (lepidoptera, papilionoidea and hesperioidea) of the "baixada santista" region, coastal s？o paulo, southeastern brazil. a list with 538 species of butterflies recorded in the baixada santista, s？o paulo ( se brazil) is presented. standard sampling protocols (i.e. with entomological nets) were followed. baited traps were installed for fruit feeding species. data from the literature and entomological collections were also considered in the total estimated species richness. the species richness recorded in the baixada santista region represents about 16% of the brazilian butterfly fauna, and 34% of the known butterfly fauna for the state of s？o paulo. the present list contains an appreciably higher number of species in comparison to other lists from similar biomes farther south, such as blumenau in santa catarina, and maquiné in rio grande do sul.