Common Green Darner Anax junius (Drury, 1770)  
Kingdom Animalia   >   Phylum Arthropoda   >   Class Insecta   >   Order Odonata   >   Family Aeshnidae   >   Genus Anax   

Status:

The Common Green Darner (Anax junius) is one of the most common and widespread dragonflies in North America. This dragonfly is one that is recognized by many people, even those with little to no knowledge of Odonata. This species has a curious life cycle, with a migratory population which migrates northwards in spring to breed each year. The offspring of these spring migrants develop rapidly, becoming adults by the end of the summer. As fall approaches, the new generation migrates southward, often collecting in huge swarms along coasts when conditions are right. Once they have reached more southerly climes, they breed there, and a subsequent generation makes the northward migration in spring of the following year. In addition to the migratory population, there is also a resident population of Anax junius with much slower development. The two forms can even occur in the same ponds (Paulson, 2011). This species is found across all of Maryland, and spring migrants are often among the first dragonflies seen in spring in this region (Richard Orr's The Dragonflies and Damselflies of Maryland and the District of Columbia).

There are 1,927 records in the project database.

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A Common Green Darner found in Caroline Co., Maryland (10/1/2005). Photo by Jim Brighton. (MBP list)

A male Common Green Darner in Garrett Co., Maryland (6/10/2007). Photo by Bill Hubick. (MBP list) (More of this species)

A Common Green Darner in Baltimore Co., Maryland (8/18/2014). Photo by Frode Jacobsen. (MBP list)

A Common Green Darner patrolling Wicomico Co., Maryland (7/26/2007). Photo by Bill Hubick. (MBP list)

A mating pair of Common Green Darners in Montgomery Co., Maryland (8/20/2014). Photo by Steve Scholnick. (MBP list) (More of this species)

A mating pair of Common Green Darners in Baltimore Co., Maryland (8/18/2014). Photo by Frode Jacobsen. (MBP list)

A Common Green Darner being consumed by a European Hornet in Montgomery Co., Maryland (9/14/2019). Photo by Dave Kidwell. (MBP list)

A female Common Green Darner ovipositing, in tandem with a male, in Anne Arundel Co., Maryland (4/6/2015). Photo by Bonnie Ott. (MBP list)

A Common Green Darner in Howard Co., Maryland (3/16/2016). Our first dragonfly report of the 2016 field season. Photo by Bonnie Ott. (MBP list)

A Common Green Darner in St. Mary's Co., Maryland (9/14/2014). Photo by Jim Stasz. (MBP list)

Common Green Darner in Baltimore City, Maryland (10/31/2006). Photo by Thomas Wilson. (MBP list)

A Common Green Darner in Harford Co., Maryland (4/7/2015). Photo by Matthew Addicks. (MBP list)

A cast skin of a Common Green Darner in Howard Co., Maryland (6/8/2012). Photo by Bonnie Ott. (MBP list)

A Common Green Darner preys upon a Monarch in Chambers Co., Texas (10/28/2012). Photo by Tony Leukering. (MBP list)

Early instar Common Green Darner in Baltimore Co., Maryland (5/27/2015). Photo by Steve Collins. (MBP list)

A Common Green Darner in Howard Co., Maryland (9/25/2013). Photo by Bonnie Ott. (MBP list)


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