Phasmatodea (sometimes called Phasmida), order of insects, whose members are variously known as stick insects walking sticks or stick-bugs, phasmids, ghost insects and leaf insects (generally the family Phylliidae), Madidi National Park, Bolivia. Phasmatodea (sometimes called Phasmida), order of insects, whose members are variously known as stick insects walking sticks or stick-bugs, phasmids, ghost insects and leaf insects (generally the family Phylliidae). Madidi national park in the upper Ama