SENGUPTA, J.; NASKAR, A.; MAITY, A.; CHAUDHURI, S.; BANERJEE, D. A Taxonomic Account of Hover Flies (Insecta: Diptera: Syrphidae) with 4 New Records from Cold Dry Zones of Himachal Pradesh, India. International Journal of Advancement in Life Sciences Research, v. 1, n. 4, p. 13- 30, 15 out. 2018.