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Common Green Darner (Anax junius)


Detailing the physical features, habits, territorial reach and other identifying qualities of the Common Green Darner.


 Updated: 2/22/2018; Authored By Staff Writer; Content ¬©www.InsectIdentification.org



  Common Green Darner  
Picture of Common-Green-Darner
Picture of Common-Green-Darner Picture of Common-Green-DarnerPicture of Common-Green-Darner


The large Common Green Darner is as fast as it is long and these water-loving insects are iconic summertime spectacles.





Common Green Darners are beautiful dragonflies with transparent wings. They are large specimens that are common throughout North America and are thought to be somewhat migratory. They are members of the family Aeschnidae, a group of giant darners that have flight speeds one wouldn't expect from such a large and heavy-looking insect. They are most recognized by their striking green coloration. The male features blue along the sides of the abdomen while the female is a greenish-gray. The male also has an eyespot on the head, giving it the appearance of a cyclops. Younger males may not yet have the blue coloring and may appear more like a female. To see a short video of one resting on sagebrush, click below:



Common Green Darners are almost always found near water sources. Females will slightly bend their abdomens over water and insert an egg, one-at-a-time, into the stem of an underwater plant. The eggs hatch and young naiads (juveniles) emerge, looking more like tiny lobsters than darners. They live underwater and feed on tadpoles, other aquatic insects, and tiny fish until they grow and develop. The naiads then crawl out of the water and morph into their adult forms. Adults eat mosquitoes, flies, midges, wasps and other flying insects, helping to control the population sizes of insects that many people consider pests.
Basic Information
Common Name: Common Green Darner
Other Name(s): Green Darner, Snake Doctor, Darning Needle
Scientific Name: Anax junius
Category: Dragonfly or Damselfly


General Identification
Size (Adult; Length): 68mm to 80mm (2.65in to 3.12in)
Colorwheel Graphic
Identifying Colors: blue, gray, green, yellow, black, brown, purple
Additional Descriptors: tail, cyclops, eyespot, large, dragonfly, flying, beneficial




Taxonomic Hierarchy
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Odonata
Family: Aeshnidae
Genus: Anax
Species: junius




Territorial Reach (A-to-Z)
Note: An insect's reach is not limited by lines drawn on a map and therefore species may appear in areas, regions and/or states beyond those listed below as they are driven by environmental factors (such as climate change), available food supplies and mating patterns. Grayed-out selections below indicate that the subject in question has not been reported in that particular territory. U.S. states and Canadian provinces / territories are clickable to their respective bug listings.
Alabama
Alaska
Arizona
Arkansas
California
Colorado
Connecticut
Delware
Florida
Georgia
Hawaii
Idaho
Illinois
Indiana
Iowa
Kansas
Kentucky
Louisiana
Maine
Maryland
Massachusetts
Michigan
Minnesota
Mississippi
Missouri
Montana
Nebraska
Nevada
New Hampshire
New Jersey
New Mexico
New York
North Carolina
North Dakota
Ohio
Oklahoma
Oregon
Pennsylvania
Rhode Island
South Carolina
South Dakota
Tennessee
Texas
Utah
Vermont
Virginia
Washington
West Virginia
Wisconsin
Wyoming
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Alberta
British Columbia
Manitoba
New Brunswick
Newfoundland and Labrador
Nova Scotia
Ontario
Prince Edward Island
Quebec
Saskatchewan
Mexican National Flag Graphic
Mexico


Territorial Area Map (Visual Reference Guide)
The map below showcases (in red) the states and territories of North America where the Common Green Darner may be found (but is not limited to). This sort of data can be useful in seeing concentrations of a particular species over the continent as well as revealing possible migratory patterns over a species' given lifespan. Some species are naturally confined by environment, weather, mating habits, food resources and the like while others see widespread expansion across most, or all, of North America.
Alaska  
Hawaii  
Prince Edward Is.  
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State of Delware graphic
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State of New Mexico graphic
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State of South Carolina graphic
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Canadian territory of Alberta graphic
Canadian territory of British Columbia graphic
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Canadian territory of Newfoundland and Labrador graphic
Canadian territory of Ontario graphic
Canadian territory of Quebec graphic
Canadian territory of Saskatchewan graphic
Territory map graphic of the country of Mexico
Contiguous United States shape map layer graphic


Images Gallery for the Common Green Darner
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