Jaya Kumaria*, Seema Keshria & M.Prasadb
aDepartment of Zoology, RLSY College, R.U., Ranchi, Jharkhand, India
bDepartment of Zoology, Ranchi University, Ranchi, Jharkhand, India
Received 5th January, 2012; Revised 27th February, 2012
Abstract : The odonate insects available in the marshy land habitat of Ranchi, Jharkhand have been sampled and incidentally all but one have been found to be the members of sub-order Anisoptera (dragonflies). The marshy land habitats of Ranchi being a representative of tropical climate display a good amount of variation in these species composition in terms of abundance and richness. In the present piece of research work, the relative abundance of a genus of dragonflies, Aeshna spp. (Odonate : Anisoptera) is being reported from eastern zone of Ranchi specially after rainy season. Thus, the genus and its species seems to be dominant over other members as per S-W diversity index also.