A study on butterfly diversity was carried out in sub division Lalsot district Dausa of Rajasthan, India. Following selected two sites in the study area for the surveyed of butterflies namely Meda bheruji and Pancheswar mahadev lalsot a total of 3258 individuals and 39 species of butterfly belong to 5 families were recorded during the study period. The present communication is based on the sightings of two new butterflies viz., recorded for the first time in the state of Rajasthan and represents one of the unique ecosystems in terms of species diversity and species richness.