Stick insects, scientific name Gongy10pus adyposus Brunner, are invertebrates and belong to the winged subclass, named after their slender bodies, winged or wingless. The body is long and large, medium or large insects, generally 10 to 30 mm, the largest 260 mm. The anterior thoracic segment is short, the middle and posterior thoracic segments are long, and this is particularly true for wingless species. When the 6-foot of the stick insect is close to the body, it is more like a bamboo knot, and loves the leaves of shrubs and trees. The wings of winged species are mostly two pairs, the forewings are leathery, narrow and long, with many transverse veins, and the vein sequence is finely networked.

Most stick insects are dark brown in color, and a few are green or dark green. Distributed in Hubei, Yunnan, Guizhou and other provinces.
Most stick insects are dark brown in color, and a few are green or dark green. This insect can often reproduce in parthenogenesis, the male is often small, and the unfertilized eggs are mostly developed into females. When injured, the baby's foot can fall off on its own and can regenerate.
High temperature, low temperature, and low light can make the body color darker, on the contrary, the body color can become lighter. Day and night body color is different, becoming a rhythmic body color change. Stick insect plant feeding.
The body shape is bamboo knotty, the front chest is short, and the middle and back chest are extremely long; Leaf-like ones are in the middle and posterior
The chest is not particularly elongated. The forewings are short, leathery, scaly, overwing, well-developed or sometimes degenerate or completely absent, and the hindwings are membranous, broad, and large, with fan-like folds. Temperate species are often wingless, while tropical species have developed anterior and posterior wings, and there are also degenerated or wingless people
There are mainly some species of the spiny wasp Family Eupelmidae, Chrysididae and Custidae, and the Pointed-breasted Green Bee Family, and Taiwan reported to be mainly parasitic in eggs. The body is parasitic, commonly found in red mites, but the parasitic stick insects do not die. Nematodes parasitize sticks are not common, but they can cause loss of appetite in the worm body and eventually lead to death.
The reproduction of stick insects is also very special, generally after mating, the eggs are laid on the branches of the tree, and it takes one or two years for the larvae to hatch. Some females can lay eggs without mating and give birth to fatherless offspring, a form of reproduction called parthenogenesis. Stick insects are incompletely metamorphosed insects, and newly hatched nymphs are very similar to adults. They often climb trees at night, and after several molts, they gradually grow into adults. The lifespan of adult insects is very short, only about 3 to 6 months.