Summary:Damon medius from Africa can reach a body length of 3–4 centimetres (1.2–1.6 in). This strictly arboreal and nocturnal whip spider has a flat body and fragile legs, by which it moves sideways like a crab. In males the front legs are very long and antenniform, much longer than in the females. It has two large, spiny pedipalps, which are larger in the male than the female. It feeds on small insects.