The Phasmatodea are an order of insects whose members are variously known as stick insects, stick-bugs, walking sticks, stick animals, or bug sticks. They are also occasionally referred to as Devil's darning needles, although this name is shared by both dragonflies and crane flies. They can be generally referred to as phasmatodeans, phasmids, or ghost insects, with phasmids in the family Phylliidae 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 defense in the form of startle displays, spines or toxic secretions. Stick insects from the genera Phryganistria, Ctenomorpha, and Phobaeticus include the world's longest insects.
Extatosoma tiaratum, commonly known as the spiny leaf insect, the giant prickly stick insect, Macleay's spectre, or the Australian walking stick, is a large species of Australian stick insect endemic to Australia. The species has the Phasmid Study Group number PSG9.
Heteropteryx is a monotypic genus of stick insects containing Heteropteryx dilatata as the only described species. and gives its name to the family of the Heteropterygidae. Their only species may be known as jungle nymph, Malaysian stick insect, Malaysian wood nymph, Malayan jungle nymph, or Malayan wood nymph and because of their size it is commonly kept in zoological institutions and private terrariums of insect lovers. It originates in Malay Archipelago, more precisely on the Malay Peninsula and Borneo and is nocturnal.
The climbing mantella is a species of diurnal poison frog of the genus Mantella that resides in the subtropical regions of northeast Madagascar. Although it spends a significant amount of time in trees or bamboo forests, this frog species is not fully terrestrial and actively seeks areas with a water source.
Deinacrida fallai or the Poor Knights giant wētā is a species of insect in the family Anostostomatidae. It is endemic to the Poor Knights Islands off northern New Zealand. D. fallai are commonly called giant wētā due to their large size. They are one of the largest insects in the world, with a body length measuring up to 73 mm. Their size is an example of island gigantism. They are classified as vulnerable by the IUCN due to their restricted distribution.
Tropidoderus childrenii, the Children's stick insect, was first described in 1833 by Gray.
Eurycnema goliath, commonly known as the goliath stick insect, or the regal stick insect, is a large species of stick insect in the family Phasmatidae, endemic to Australia and considered one of the largest species of stick insects in the country. The species has the Phasmid Study Group number PSG14.
Anchiale austrotessulata, the tessellated stick insect, tessellated phasmid or tessulata stick insect, is a medium-sized, stick insect found in the Brisbane area of Australia. Fully grown males in mating season exhibit frenetic behaviour. This species is also parthenogenetic.
Ctenomorpha marginipennis, the margin-winged stick insect, is a species of stick insect endemic to southern Australia. The species was first described by George Robert Gray in 1833.
Pulchriphyllium giganteum, commonly known as the Giant Malaysian Leaf insect, is a species of leaf insects described from Malaysia by Hausleithner in 1984 and placed in the genus Pulchriphyllium since 2021. Pulchriphyllium giganteum is the largest species belonging to the genus Pulchriphyllium reaching 105 mm in size. They are found most abundantly in the west Malaysian tropics. The females typically have large elytra that lie edge to edge on the abdomen and tend to lack hind wings making them usually flightless. Males have small elytra and sometimes transparent non-leaflike functional hind wings. Pulchriphyllium giganteum found in the wild tend to be mostly females and the first male of this species was not found until 1994. In captivity, the species has primarily been observed to reproduce through parthenogenesis meaning the females are asexual. The primary reproductive pattern in the wild is unknown. Eggs tend to be brown or black and glossy and resemble seeds. They hatch around 6 months after breeding. Newly hatched young nymphs tend to be wingless and brown or reddish in color. They develop their green color after feeding on leaves. Both the adult and larval stages are phytophagous meaning they feed on plants. The main plant food sources for this species are oak and bramble tree leaves.
The sirex woodwasp is a species of horntail, native to Europe, Asia, and northern Africa. Adults vary in length from 9 to 36 mm.
Eurycantha calcarata is a species of phasmid endemic to Australasia.
Nanophyllium brevipenne, is a species of phasmid or leaf insect of the genus Nanophyllium. It is found in New Guinea, and Sri Lanka.
Pseudomicrophyllium geryon is a species of phasmid or leaf insect. It is found in the Philippines, Java (Indonesia), and Sri Lanka.
Phyllium bilobatum is a species of leaf insect in the family Phylliidae. It is found in the Philippines and Malaysia. This species was first described in 1843 by the English zoologist George Robert Gray, who gave it the name Phyllium bilobatum. It has been assigned to the subgenus Phyllium, which is to be distinguished from the second subgenus Pulchriphyllium, within the genus Phyllium. The holotype is a female from the Philippines, which is kept in the Natural History Museum, London where Gray worked cataloguing insects.
Heteropterygini is the only tribe within the subfamily of the Heteropteryginae. With 19 representatives described, this subfamily includes the fewest species of the three subfamilies, but includes the largest and most striking species of the family.
Haaniella is a genus of the Phasmatodea family Heteropterygidae from Southeast Asia.
Brasidas samarensis is stick insect species from the family Heteropterygidae. Occasionally it is named Samar stick insect according to their origin. In addition is the type species of the genus Brasidas, which was named after the Spartan officer Brasidas.
Hoploclonia abercrombiei is a stick insect species known from the northwest of Borneo, more precisely from only one place in the Malay state Sarawak.
