Not all fireflies glow as adults. Ellychnia is a day-flying firefly that only bioluminesces in the larval stages. Hallelujah Junction, Nevada, USA
This small longhorn beetle is a colorful firefly mimic. Austin, Texas, USA.
The dark firefly Lucidota atra does not glow as an adult. Instead, signaling by this day-flying species is predominately chemical, so the antennae are correspondingly enlarged. Urbana, Illinois, USA.
