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The Phasmatodea (also known as Phasmida or Phasmatoptera) are an order of insects whose members are variously known as stick insects, stick bugs, walkingsticks, 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. [ 1 ]
Eurycnema goliath, commonly known as the goliath stick insect, or the regal stick insect, [4] is a large species of stick insect in the family Phasmatidae, endemic to Australia [2] and considered one of the largest species of stick insects in the country. [5] The species has the Phasmid Study Group number PSG14. [6]
Stick insects are known for their behavioural adaptations for blending in with their environments. As well as their convincing appearance, stick insects are known to sway their bodies both when they walk and while stationary which has long been thought to make their camouflage more convincing; swaying like a twig in the wind.
A pair of mating D. femorata in the Hudson Highlands region of New York. The common walkingstick is a slender, elongated insect that camouflages itself by resembling a twig. . The sexes differ, with the male usually being brown and about 75 mm (3 in) in length while the female is greenish-brown, and rather larger at 95 mm (3.7 i
The Phasmatidae are a family of the stick insects (order Phasmatodea). They belong to the superfamily Anareolatae of suborder Verophasmatodea. [1] Like many of their relatives, the Phasmatidae are capable of regenerating limbs and commonly reproduce by parthenogenesis. Despite their bizarre, even threatening appearance, they are harmless to humans.
Compared to other stick insects (order Phasmatodea), the genus Timema is considered basal; that is, the earliest "branch" to diverge from the phylogenetic tree that includes all Phasmatodea. To emphasize this outgroup status, all stick insects not included in Timema are sometimes described as "Euphasmatodea."
It is a common misconception that Heteropteryx dilatata holds the record for the largest egg laid by an insect, with the eggs sometimes described as being 1.3 centimetres (0.51 in) in length. [13] The heaviest eggs are 250 to 300 mg laid by the closely related Haaniella echinata. These are up to 1.2 centimetres (0.47 in) long and about 0.8 ...
Like many stick insects, E. tiaratum actively sways back and forth or side to side when disturbed or when there is a gust of wind, with a frequency distribution like foliage rustling in the wind. The swaying behaviour may be motion crypsis, preventing detection by predators, or motion masquerade, promoting misclassification (as something other ...