Effects of Selected Environmental Variable Upon The Distribution of Hover Fly (Insecta: Diptera: Syrphidae) along with an Altitudinal Gradient

The relationship between species richness of Syrphidae with large scale environmental variables, altitude and latitudinal gradients has been widely studied in selected study area of the state of Himachal Pradesh, India. The study was done over a period of one year (2015-2016) along the selected four districts of Himachal Pradesh. Altogether 34 species under 16 genera have been collected from the selected study areas along the altitudinal slope.