Overview for Geographical Distribution and Zoogeography of odonata (Insecta) of Meghalaya, India
The Order odonata is popularly known as dragonflies. These insects are famous for their power to control the populations of noxious insects viz. mosquitos, termites, flies, aphids etc. They occur all over the world. The state Meghalaya is situated in the North-eastern part of India. It was created inj 1972; previous to this it was within Assam along with Arunachal Pradesh, Mizoram, Manipur, Nagaland. Its physiography is based on three hills â€“ Garo, Khasi and Jaintia. It is divided into five administrative districts. The area is provided with innumerable rivulets and streams flowing in the grooves and gorges of hills and valleys. There are number of lakes, ponds and rivers. The rivers are torrentials and flow in the direction of ranges and froms water falls along with precipitous edges (Figs. 1&2). The vegetation is dominated by temperate and tropical evergreen forests. The first record of Odonata from the state was made by Selys and Hagen is 1853 (Lahiri 1987). Lahiri (op. cit) compiled as well as studied the available materials from the state and reported 147 species and subspecies. Prasad and Ghosh (1984 a) described one species which Lahiri did not include. Recently Zoological Survey of India has undertaken a project to study the fauna of the state. In this connection reassessment of fauna of the state is being made. Works so far published and or under preparation do not contain detailed geographical distribution of my taxon as well as Zoogeorgraphy. The present paper is in continuation of the project fauna of Meghalaya series. It contains detailed geopraphical distribution of each species and subspecies scattered in literature and discussion on zoogeography.
Tridib Ranjan Mitra (Author)
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