Athous haemorrhoidalis, commonly known as the bloody-nosed beetle, is a species of click beetle belonging to the family Elateridae. It is characterized by its elongated body, reaching about 15-20 mm in length, and its reddish-brown coloration. The name "bloody-nosed beetle" comes from its ability to exude a red fluid from its mouth when threatened, resembling a bleeding nose. These beetles are nocturnal and can be found in various habitats, including woodlands and gardens, where they feed on plant material and other insects.