dragonfly
Dragonfly, common name for any member of an order of predaceous aquatic insects characterized by an elongate body, agile flight, and two roughly equal pairs of membranous wings. The order is divided into two suborders, the dragonflies, which hold their wings spread when resting, and the damselflies, which hold their wings together above the body when resting. In both groups, the wings are unable to disengage and fold down as in most other insects. About 5900 species are known; members are found in all temperate and tropical regions of the world. Popular names for adults of both dragonflies and damselflies are darning needle, snake feeder, snake doctor, and mosquito hawk.
MONISH POLLEY, India, HOWRAH