Identification guides for Sable Clubtail dragonfly (Stenogomphurus rogersii) were created for both adult and larva/nymph forms. (Remember, a well-preserved odonate exuvia is a perfect model of the final instar larva.)
Sable Clubtail has a limited range and is classified as rare to uncommon.
The adult flight period is from May 21 to July 24 in the Commonwealth of Virginia. Source Credit: “CHECKLIST OF THE DRAGONFLIES AND DAMSELFLIES OF VIRGINIA, April 2017 and April 2020 updates” by Dr. Steve Roble, Staff Zoologist at the Virginia Department of Conservation and Recreation, Division of Natural Heritage.
Adult
Apple macOS and Safari (interactive)
Apple macOS and “Safari” were used to convert the Web page version of “Field marks for identification of S. rogersii” to PDF (Portable Document Format). The PDF version of the same Web page is 351 KB, ad-free, and is interactive (with Internet access), meaning the embedded hyperlinks work as expected.
Apple iOS and Safari (non-interactive)
Apple iOS and “Safari” were used to convert the Web same page to PDF. The PDF version is 5.4 MB, ad-free, and is not interactive.

(See complete PDF version of “Field marks for identification of S. rogersii.”)
The preceding screenshot shows what the output looks like.
Apple “Photos” can be used to view PDFs on iOS devices. For macOS devices, Apple “Preview” can be used to open the complete PDF version; select “View / Actual Size” and resize the window as necessary. And of course PDFs can be opened using a Web browser.
Exuvia
Apple macOS and Safari (interactive)
Apple macOS and “Safari” were used to convert the Web page version of “Stenogomphurus rogersii exuvia” to PDF. The PDF version of the same Web page is 692 KB, ad-free, and is interactive (with Internet access).
Apple iOS and Safari (non-interactive)
Apple iOS and “Safari” were used to convert the Web same page to PDF. The PDF version is 4.8 MB, ad-free, and is not interactive.

(See complete PDF version of “Stenogomphurus rogersii exuvia.”)
The preceding screenshot shows what the output looks like.
Copyright © 2022 Walter Sanford. All rights reserved.
Tags: adult, larva, larvae, nymph, nymphs, Sable Clubtail dragonfly, Stenogomphurus rogersi, Tech Tips
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