Male dragonflies’ wax coats might protect them against a warming climate

The coat may have originally evolved as protection during sunny courtship flight

dragonfly with wax coat

A male eight-spotted skimmer (Libellula forensis) perches on a twig with sunlight reflecting off the bright, waxy pruinescence on its abdomen. This waxy coating keeps males cool and may buffer some dragonfly species against the effects of a warming climate.

Sarah E. Nalley

Some male dragonflies have a waxy coat that keeps them cool while pursuing mates and may also help the insects shrug off a warming climate.