Click beetles (family Elateridae) are distinct for their ability to flip themselves upright when on their backs by snapping a thorax spine into a groove, creating an audible "click" to escape predators. Over 7,000–10,000 species exist worldwide, typically measuring 12–40 mm (up to 2.5 inches) with long, slender, dark-colored bodies. Their larvae, known as wireworms, live in soil, feeding on roots and tubers.
Key Facts About Click Beetles
Unique Mechanism: When flipped on their backs, they snap their thorax, launching themselves into the air while making a clicking sound.
Physical Appearance: They have hard, elongated, and often parallel-sided bodies (brown, black, or grey). Some species feature eye-like spots on their pronotum.
Larvae (Wireworms): The larvae are hard-bodied, slender, and yellow to brown, often resembling worms with six small legs. They can spend up to four years in the larval stage.
Diet and Habitat: Adults are primarily herbivorous, feeding on pollen and nectar, while larvae (wireworms) can be significant agricultural pests that damage crop roots, seeds, and tubers.
Behavior: They are nocturnal, often attracted to light, and may enter homes at night.
Defense: In addition to jumping, they may play dead when threatened.
