Biodiversity of Aquatic Insects in Vembakottai Water Reservoir, Virudhunagar District, Tamil Nadu

Abstract

This paper deals with biodiversity of aquatic insects in Vembakottai water reservoir, Virudhunagar district, Tamilnadu. A total of 16 species & 7 genera of aquatic insects were observed from the study area between July 2012 to June 2013. In class insects six orders such as coleoptera (4sps), Hemiptera (8sps), Diptera (3sps), Odonata (2sps), Plecoptera (1sps) and Ephemeroptera (1sps) belonging to 13 families namely Dytiscidae, Notonectidae, Corixidae, Nepidae, Pleidae, Gerridae, Chironomidae, Syrphidae, Corduliidae, Coenagrionidae, Isoperlidae, Culicidae and Ephemeridae. Thus the study revealed that Hemipteran aquatic insects are predominant than others. In the present study the aquatic insects indicating very low level of water pollution.