A firefly larva is armored for protection against predators. Champaign, Illinois, USA
A firefly pupates, wriggling out of its cast larval skin. Fireflies in the genus Pyractomena pupate on warm south-facing tree trunks and are among the first species to emerge each spring. Raven Run Nature Sanctuary, Kentucky, USA.
One of North America's smallest fireflies. Saint Louis, Missouri, USA.
