Unknown species of odonate exuvia, revisited

This post features more photos of an odonate exuvia collected by Michael Powell during a photowalk with me on 01 June 2019 at Occoquan Regional Park, Fairfax County, Virginia USA. Both photos are one-offs, not composite images.

The genus and species is unknown. This specimen might be a member of Family Libellulidae (Skimmers).

Occoquan Regional Park | unknown species | exuvia (lateral)

Mid-dorsal hooks are present on some abdominal segments. Lateral spines are located on abdominal segments eight and nine (S8-9).

Occoquan Regional Park | unknown species | exuvia (dorsal)

I still need to take close-up photos of the anal pyramid and shoot photos of the ventral view before I attempt to identify the genus/species of the specimen using one or more dichotomous keys.

Related Resource: Vimeo video: Identifying dragonfly larva to family (8:06).

Tech Tips

The following equipment was used to shoot the quick-and-dirty macro photograph featured in this post: Fujifilm X-T1 digital camera; Fujifilm MCEX-16 extension tube; and Fujinon XF80mm macro lens plus lens hood. The camera was set for both manual exposure and manual focus. That’s right, a switch on the camera body is used to set the type of focus. It’s a Fujifilm thing. Camera settings: focal length 80mm (120mm, 35mm equivalent); ISO 200; f/16; 1/180s.

Godox X2TF radio flash trigger, mounted on the hotshoe of my X-T1, was used to control two off-camera external flash units set for radio slave mode: Godox TT685F Thinklite TTL Flash (manual mode); and Godox TT685o/p Thinklite Flash for Olympus/Panasonic Cameras (manual mode). Both flash units were fitted with a Lastolite Ezybox Speed-Lite 2 flash modifier.

Adobe Photoshop CC 2017 was used to spot-heal and sharpen the image.

Copyright © 2019 Walter Sanford. All rights reserved.

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