DRAGONFLY
dragonfly, darning needle, devil's darning needle, sewing needle, snake feeder, snake doctor, mosquito hawk, skeeter hawk
(noun) slender-bodied non-stinging insect having iridescent wings that are outspread at rest; adults and nymphs feed on mosquitoes etc.
Source: WordNet® 3.1
Etymology
Noun
dragonfly (plural dragonflies)
An insect of the suborder Epiprocta or, more strictly, the infraorder Anisoptera, having four long transparent wings held perpendicular to a long body when perched.
Synonyms
• (insect of infraorder Anisoptera): adderbolt, darner, darning needle, devil's darning needle, dining needle, ear sewer, horse-stinger, mosquito fly, mosquito hawk, needle, skeeter hawk, snake doctor, snake feeder, spindle
Source: Wiktionary