Records of the Zoological Survey of India - A Journal of Indian Zoology

Swapan Kumar Das ¹, Udipta Chakraborti ¹, Sankarsan Roy ¹, Olive Biswas ¹, Bulganin Mitra ¹

Affiliations
1 Zoological Survey of India, Prani Vigyan Bhavan, M-Block, New Alipore, Kolkata-700 053, West Bengal, IN

Abstract

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.

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Swapan Kumar Das ¹, Srimoyee Basu ¹, Sujit Kumar Ghosh ¹, Bulganin Mitra ¹

Affiliations
1 Zoological Survey of India, Kolkata, IN

Abstract

Study of aquatic insects has been proceeding for centuries, possibly millennia. Freshwater habitats from puddles to rivers to lakes, including both lentic (still water) and lotic (running water) habitats, can be home to various species of aquatic insects (Cheng, 1985; Daly, et al., 1998; Glausiusz, 1997). This specially adapted group of insects makes up only 3-5 percent of all insect species, but is very taxonomically diverse (Daly et al., 1998).

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Ananda Mohan Biswas ¹, Swapan Kumar Das ¹

Affiliations
1 Zoological Survey of India, New Alipore, Kolkata-53, IN

Abstract

The gryllid represents the most classical type of cricket characterized by the large globular head, the tarsi compressed and the posterior tibiae armed with spines. Numerous workers like Cade (1984,1991), Cade and Wyatt (1984), Cade and Cade (1992), French and Cade (1987), Ciceran et al (1994), Doherty and Storz (1992) studied on the calling behaviour of the gryllids. Some workers like Jang and Gerhardt (2005, 2006) studied on the divergence in the calling songs between sympatric and allopatric population. Works on the population fluctuation of the gryllid fauna is very rare.

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