There are roughly 6,000 insect species. Of 334 Western Ghats butterfly species, 316 species have been reported from the Nilgiri Biosphere Reserve. The Western Ghats are home to 174 species of odonates (107 dragonflies and 67 damselflies), including 69 endemics. Most of the endemic odonate are closely associated with rivers and streams, while the non-endemics typically are generalists.