Walkingstick, a singular wingless insect allied to the mantis. In appearance it resembles a dried twig from two to six inches in length. Were it not for its legs, the observer would seldom be able to detect it, especially as it lies customarily lengthwise on twigs and the like. It feeds on leaves. No doubt its shape, aided by a greenish gray color, is a protection against bird enemies. There are many species. See MANTIS.