Melanotus clandestinus is a small, nocturnal insect belonging to the family Elateridae, commonly known as click beetles. It measures around 1.5 centimeters in length and has a slender, elongated body. The species is characterized by its dark brown or black coloration, which helps it blend into its habitat. Melanotus clandestinus is primarily found in forested areas and is known for its ability to produce a clicking sound by snapping its thorax, which it uses as a defense mechanism.