Unicorns in unexpected places (Part 1)

I visited Occoquan Bay National Wildlife Refuge (OBNWR), Prince William County, Virginia USA for the first time on 18 June 2016. I found the Calico Pennant dragonflies (Celithemis elisa) that I was looking for at Painted Turtle Pond; I was surprised when I spotted one or more Unicorn Clubtail dragonflies (Arigomphus villosipes) at the same pond!

A Unicorn Clubtail dragonfly (Arigomphus villosipes) spotted at Painted Turtle Pond, Occoquan Bay National Wildlife Refuge, Prince William County, Virginia USA. This individual is a male.

18 JUN 2016 | OBNWR | Unicorn Clubtail (male)

All of the individuals in this gallery are males, as indicated by their unique terminal appendages: the epiproct is a large “plate” that spans both cerci.

A Unicorn Clubtail dragonfly (Arigomphus villosipes) spotted at Painted Turtle Pond, Occoquan Bay National Wildlife Refuge, Prince William County, Virginia USA. This individual is a male.

18 JUN 2016 | OBNWR | Unicorn Clubtail (male)

A Unicorn Clubtail dragonfly (Arigomphus villosipes) spotted at Painted Turtle Pond, Occoquan Bay National Wildlife Refuge, Prince William County, Virginia USA. This individual is a male.

18 JUN 2016 | OBNWR | Unicorn Clubtail (male)

Like all male clubtail dragonflies, the hind wings of male Unicorn Clubtails are “indented” near the body; this distinctive field marker isn’t shown well by any of the photos in this gallery except the following shot.

A Unicorn Clubtail dragonfly (Arigomphus villosipes) spotted at Painted Turtle Pond, Occoquan Bay National Wildlife Refuge, Prince William County, Virginia USA. This individual is a male.

18 JUN 2016 | OBNWR | Unicorn Clubtail (male)

The juxtaposition of man-made and natural objects is visually appealing in the next photo.

A Unicorn Clubtail dragonfly (Arigomphus villosipes) spotted at Painted Turtle Pond, Occoquan Bay National Wildlife Refuge, Prince William County, Virginia USA. This individual is a male.

18 JUN 2016 | OBNWR | Unicorn Clubtail (male)

A Unicorn Clubtail dragonfly (Arigomphus villosipes) spotted at Painted Turtle Pond, Occoquan Bay National Wildlife Refuge, Prince William County, Virginia USA. This individual is a male.

18 JUN 2016 | OBNWR | Unicorn Clubtail (male)

A Unicorn Clubtail dragonfly (Arigomphus villosipes) spotted at Painted Turtle Pond, Occoquan Bay National Wildlife Refuge, Prince William County, Virginia USA. This individual is a male.

18 JUN 2016 | OBNWR | Unicorn Clubtail (male)

Related Resources:

Copyright © 2016 Walter Sanford. All rights reserved.

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