Ghaga Beel is a freshwater perennial water body of Nalbari district of Assam. Geographically it lies at the intersection of 26o 28 ∕ 21.10 // N – 26 o 28 / 25.05 //N and 91 o 28 / 51.84 // E – 91 o 29 / 19.80 // covering an area of about 50 hectares. Study on the aquatic Hemiptera in Ghaga Beel carried out for a period of one year (2013-2014), covering three seasons pre monsoon (March-May), monsoon (July-September), and post monsoon (November- January) seasons. Study revealed 15 species of aquatic Hemiptera belongs to eight orders viz. Gerridae, Belostomatidae, Nepidae, Corrixidae, Hydrometridae, Pleidae, Notonectidae and Mesovelidae. Highest number of species were recorded from the order Gerridae with 4 species, Nepidae with 3 species, Belostomatidae and Notonectidae with 2 species, Corrixidae, Hydrometridae, Pleidae and Mesovelidaeidae with one species each respectively.
