A spine on the prosternum can be snapped into a corresponding notch on the mesosternum, producing a violent clicking sound which can bounce the beetle into the air. Clicking is mainly used to avoid predation, although it is also useful when the beetle is on its back and needs to right itself. There are about 7,000 known species.

The adults are typically nocturnal (active only at night) and phytophagous (a form of predation in which an organism known as an herbivore, consumes principally autotrophs such as plants, algae and photosynthesizing bacteria).

In hot weather, Click beetles are prone to enter peoples houses at night if entrances such as windows are left opened. The larvae of a few species, called ‘wireworms’, can be serious pests of corn and other grains, especially after a field has been left fallow (a field that has been left to grow naturally without help from nutriants or farming).