Aquatic Beetles of Nayachar Island, East Midnapore District, West Bengal, India

The present account is based on a collection of Coleoptera (Gyrinidae, Dytiscidae and Hydrophilidae) obtained from Nayachar Island of West Bengal which includes the report of 7 species under 6 genera of 3 families. The diagnostic characters and detailed distribution of each species are provided. Nayachar is an island located at the confluence of the Hooghly River and the Haldi River at the northern extent of the Bay of Bengal in the East Midnapore district of West Bengal state of India. It is a small island with an area of 64 square kilometers located at 22°02' N 88°04' E coordinates.