The Green Darner or Common Green Darner (Anax junius), after its resemblance to a darning-needle, is a species ofdragonfly in the family Aeshnidae. One of the most common and abundant species throughout North America and it ranges south to Panama. It is well known for its great migration distance from the northern United States south into Texas andMexico. It also occurs in the Caribbean, Tahiti, and Asia from Japan to mainland China. It is the official insect for the state of Washington in the United States.
Females oviposit in aquatic vegetation, eggs laid beneath the water surface. Nymphs (naiads) are aquatic carnivores, feeding on insects, tadpoles and small fish. Adult darners catch insects on the wing, including ant royalty, moths,mosquitoes and flies.
(From Wikipedia, April, 2013)