Odonates are aquatic insects. They spend most of their life as larvae that live in water; this stage of their life cycle can last from a few months to a few years. Finally, they emerge from the water and metamorphose into adults in order to reproduce; their offspring return to the water and the cycle begins again.
Careful and/or lucky observers will notice exuviae (sing. exuvia), also known as either “cast skins” or “shed skins,” left behind when odonate larvae emerge. Exuviae are fragile little works of natural art that are challenging at best to ship from one location to another.

Three odonate exuviae from the Family Libellulidae (Skimmers).
The preceding photo shows a small plastic vial containing three odonate exuviae, received from Andy Davidson. All three exuviae are members of Family Libellulidae (Skimmers). From left-to-right, the following specimens can be seen inside the vial: Wandering Glider (Pantala flavescens); Eastern Pondhawk (Erythemis simplicicollis); Blue Dasher (Pachydiplax longipennis).
Andy packed the exuviae carefully inside a 15 ml centrifuge tube with a screw on/off cap; pieces of crumpled bubble wrap were used to separate the specimens inside the tube. A pair of tweezers was used to remove the bubble wrap. All three exuviae appear to be in perfect condition.
Editor’s Notes
Andy Davidson is a graduate student at Virginia Commonwealth University in Richmond, Virginia USA. Andy works with Dr. James Vonesh, his faculty advisor, and a team of researchers studying the ecology of James River rock pools. Andy’s research project is entitled “Predator-Prey Interactions in a Changing World.”
Sincere thanks to Andy for kindly sharing several exuviae saved from laboratory-reared odonate nymphs — I’m looking forward to creating new annotated identification guides for the specimens!
Copyright © 2018 Walter Sanford. All rights reserved.
Tags: exuviae, Family Libellulidae (Skimmers), studio photography
November 5, 2018 at 8:28 am |
This is great! Thanks for sharing the tip on shipping these uber-delicate items.
November 5, 2018 at 9:59 am |
You’re welcome, Kelly — it’s good to know someone thinks this info is helpful/useful!
November 14, 2018 at 4:01 am |
[…] Resources: See also Precious cargo, a blog post by Walter Sanford. (Hey, that’s me!) Test shots of the Eastern Pondhawk […]
November 16, 2018 at 4:01 am |
[…] Precious cargo, a blog post by Walter Sanford. […]
November 19, 2018 at 4:00 am |
[…] Precious cargo, a blog post by Walter Sanford. […]