The Phasmatodea (also known as Phasmida, Phasmatoptera or Spectra)[1] are an order of insects whose members are variously known as stick insects, stick-bugs, walking sticks, or bug sticks. They are generally referred to as phasmatodeans, phasmids, or ghost insects. Phasmids in the family Phylliidae are called leaf insects, leaf-bugs, walking leaves, or bug leaves. The group's name is derived from the Ancient Greek φάσμα phasma, meaning an apparition or phantom, referring to their resemblance to vegetation while in fact being animals. Their natural camouflage makes them difficult for predators to detect; still, many species have one of several secondary lines of defence in the form of startle displays, spines or toxic secretions. The genus Phobaeticus includes the world's longest insects.
Stick Bug. Stick bugs are perhaps one of the better known examples of insect mimicry. Commonly referred to as walking sticks, stick insects began imitating plants as early as 126 million years ago. Their twig-like appearance helps to defend them against predators that hunt by sight.It is common to see them walk in a swaying motion, pretending to be a twig caught by the wind. Other stick insect species have lichen-like outgrowths on their bodies that help camouflage them on tree bark. ... Echolocation used by bats can help them hone in on the tiny noises made by stick insects for a tasty meal.
