Posts Tagged ‘Ischnura posita’

Fragile Forktail damselflies

June 17, 2014

I spotted several Fragile Forktail damselflies (Ischnura posita) during a photowalk at Huntley Meadows Park on 21 April 2014. The damselflies were the first “home grown” odonates I saw in 2014.

Fragile Forktail damselflies are black and either light green (males) or light blue (females and immature males). The top of the thorax is black with two distinctive green- or  blue exclamation points.

The following individuals are females; their gender was kindly verified by two members of the Northeast Odonata Facebook group.

Its sex is female. The abdomen looks proportionately thick throughout, and on the full-size image, you can make out the simple cerci at the tip. I’m not sure males would ever show this much pruinosity either. Source Credit: Benjamin A. Coulter, Northeast Odonata Facebook group.

Fragile Forktail damselfly (immature female)

I would call it fully mature too. The females don’t get any brighter as they get older, they just get more pruinose (chalky blue-gray) and that process has started on yours. Source Credit: Chris Hill, Northeast Odonata Facebook group.

Fragile Forktail damselfly (immature female)

The following individual is a male, as indicated by its green coloration. This specimen was spotted on 27 April 2014 along the gravel road between the terminus of the Hike-Bike Trail and the new observation platform.

Fragile Forktail damselfly (male)

Copyright © 2014 Walter Sanford. All rights reserved.

Fragile Forktail damselfy (male)

June 29, 2013

The Fragile Forktail damselfly (Ischnura posita) is black and light green. The top of its thorax is black with two distinctive light green exclamation points.

Fragile Forktail damselfly (male)

This individual was spotted at the terminus of “Great Blue Heron Trail,” Accotink Bay Wildlife Refuge, a 1,200 acre preserve located at Army Garrison Fort Belvoir, Fairfax County, Virginia USA.

Copyright © 2013 Walter Sanford. All rights reserved.

Fragile Forktail damselfy (immature form)

June 27, 2013

The Fragile Forktail damselfly (Ischnura posita) is black and light green. The top of its thorax is black with two distinctive light green exclamation points. The immature form, shown below, has markings identical to the adult form, but it is colored black and blue.

Fragile Forktail damselfly (immature)

This individual was spotted at the terminus of “Great Blue Heron Trail,” Accotink Bay Wildlife Refuge, a 1,200 acre preserve located at Army Garrison Fort Belvoir, Fairfax County, Virginia USA.

Copyright © 2013 Walter Sanford. All rights reserved.


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