NEW RECORD OF LESSER BLUE WING RHYOTHEMIS TRIANGULARIS KIRBY, 1889 (ODONATA: LIBELLULIDAE) FROM ODISHA, INDIA

摘要

The order Odonata is an important ancient group of insects and they are key indicators of water quality and fluvial ecosystem disturbance (Castella 1987). Fossil evidence suggests that the origin of this group dates back to the Permian era. Eight superfamilies, 9 families and some 58 subfamilies of dragonflies comprising 600 genera and 6,000 species of odonates are recorded (Subramanian 2009a,b) and Odisha harbours 110 species of odonates under 60 genera and 9 families (Nair 2011).