Idolon venefaucus (meaning "Venomous-maw Apparition") is a 20-24 inches long species of Idolon.


Idolon venefaucus was an ambusher, hiding amid dense leaves and vines to pounce on prey such as insects, spiders or lizards. The predator's dull gray coloring helped them blend into the shadows, hiding them from both prey and predators alike. The centipede-eating Skull Island Hornbill was immune to their venom.