[acropolite (Phil)]

There are native fireflies in Australia

Fireflies live from Sydney northwards to the tropical north, and prefer wet areas such as rainforests and mangroves.
Species notes

According to the Environmental Protection Agency, the firefly's blinking light comes from segments on the underside of the abdomen. A chemical process is triggered by air coming in, and the chemicals react to the presence of oxygen with a blaze of light. The oxygen is soon exhausted, but the process is quickly recharged for the next burst -- hence the flashing effect. Males are the main flashers, cruising at night in search of a mate. Females give an answering blink. Firefly larvae and pupae are also slightly luminous. The larvae feed on snails, but the adults probably don't feed at all. When many individuals of some tropical species of firefly gather in bushes and trees, they synchronise their flashes into a spectacular light show that may also serve to confuse potential predators.