author(s)
Suruliyandi Vijayan, Sankarappan Anbalagan, Chellapandian Balachandran and Sundaram Dinakaran

abstract
We examined the diversity and abundance of black fly larvae in five streams of Indira Gandhi Wildlife Sanctuary and National park of southern Western Ghats (IGWS) during post north-east monsoon, 2016. Result of this study explained that environmental variables including anthropogenic impact play a major role for the diversity and abundance of black fly larvae in IGWS. The present study suggests that local government should create the awareness on stream health to tourists in order to prevent the human wastes enter into the stream water.