A Contribution to the Orthoptera Fauna (Insecta : Orthoptera) of Sunderban Biosphere Reserve, India with Two New Records from West Bengal

Present communication reports 38 species of orthopteran insects under 32 genera belonging to 24 tribes of 15 subfamilies spread over 7 families under 5 Super families from Sunderban Biosphere Reserve. Among them, 17 species are reported for the first time from Sunderban biosphere Reserve (Marked with *) and two species namely Conocephalus (Anisoptera) longipennis (Hann, 1842) & Letana pyrifera Bey Bienko, 1956 from the family Tettigoniidae from West Bengal, India (Marked with #).

Among the 7 families, family Acrididae holds the highest number of species (12), followed by the family Gryllidae with 8 species. Furthermore, family Tettigoniidae (7), Trigonidiidae (4), family Pyrgomorphidae (3), Tetrigidae (3) hold the rest of the positions in the species list and family Gryllotalpidae holds the last position with only one species.