“…The highest rainfall was recorded in September and October, although the MHCs in these months were low. Although larger collections of sand fl ies were recorded in the warmer and humid months in Paraná (Massafera et al 2005, Reinhold-Castro et al 2008, Teodoro et al 2003a, we found no correlation between temperature or rainfall and the number of insects collected in our study. Generally, wind, low temperatures and rainfall affect the activity of sand fl ies, thereby reducing their population density (Aguiar et al 1985, Mayo et al 1998, Teodoro et al 2003a, Saraiva et al 2006.…”