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Goliath Stick Bug


Eurycnema goliath has green scales to blend in with its Australian habitat of leaves and branches. When startled, this insect sways from side to side in response.

Goliath stick insects are parthenogenetic, meaning females can produce fertile eggs without needing a male partner in order to fertilize and incubate them for three to 36 months before hatching them out.


The Eurycnema goliath stick insect (Eurycnema goliath) is one of Australia’s largest phasmids and can reach lengths up to 25cm. These bright green insects feature yellow patches on their head, legs, and thorax; their wings also sport green with red markings on the underside; this camouflage helps them blend in seamlessly with their forested habitat while deterring predators; when threatened, they open their wings and emit hissing sounds to deter predators while they also move side to side to mimic nearby trees!

Female Goliath Stick insects have the unique capability of reproducing without male fertilization (parthenogenesis), making this insect an excellent option in times of low fertility conditions. Eggs laid by female Goliath Stick insects in leaf litter remain safe from harsh elements or predators until hatching out as nymphs; once mature enough for reproduction, they will do it consistently throughout their lives.

Goliath nymphs pass through five instars before reaching adulthood. Starting as brown nymphs, they’ll transition to green after their first molt, gradually slimming and lightening as each new instar passes by, with longer cerci, antennae, and wings developing during each stage. Adulthood typically follows this pathway.

Once a nymph reaches its final instar, it will shed its exoskeleton again to reveal a more adult-like body beneath. Once they get this last step, they will produce their own set of wings and be ready to reproduce as adults.

Captive Goliath Nymphs may initially be kept in small containers such as jars or glass bottles until they have reached an ideal size, then transferred into larger enclosures like aquariums or reptile tanks.

The goliath stick insect is a trendy exotic pet in the US, often found at pet stores and online retailers. Easy to care for and with an average lifespan of 6-7 months in captivity, they make great displays at schools or museums, often being used as educational tools to teach about environmental awareness.


Goliath stick insects feature bright green covers covering most of their bodies, giving them a striking camouflage that makes it hard to detect in their forested habitats. Their colors make it hard for predators to spot them among branches, and small hooks at the end of their legs help them cling to trees. Growing to 25cm long makes this species one of the largest Phasmids found across Australia.

Goliath stick insects are highly prized among pet owners, often keeping them as exotic pets. Bred in captivity worldwide and readily available on online retailers for sale, their lifespan in captivity ranges between six to seven months in captivity. Goliath stick insects are also often featured as educational displays at museums or zoos.

While goliath stick bugs are relatively straightforward to care for, they’re not quite as hardy as many other species of phasmids. They require an enclosure at least 24 inches (61 cm), where fresh eucalyptus leaves should be offered regularly, misted lightly but not saturated to prevent fungal growth, and must also receive occasional light misting with water to ensure good airflow within their enclosures.

Eurycnema goliath nymphs and adults tend to be quite resistant to handling; however, females can become cranky if mistreated. When disturbed, they will open their wings, revealing bright red ventral surfaces beneath, with false eyespots on the metacoxae. When angry, they will also sway their hind legs together in an attempt to scare off or startle predators or rivals; similarly, they may use this display against opponents by pinching them between their heavily spined hind legs – either to scare off or startle them off or squeeze rivals between heavily spined hind legs; once handled roughly they may even use heavy spined hind legs against opponents to injure competitors by pinching between heavily spined hind legs!

Due to their limited natural habitat range, goliath stick bugs are susceptible to climate change’s effects. Their habitat can often be devastated by bushfires; consequently, populations have also been negatively impacted. Although listed as Least Concern species, their future survival remains uncertain due to wildfires’ increasing frequency and intensity with climate change.


The Goliath Stick Insect, scientifically known as Eurycnema goliath, currently inhabits only a minimal area on our planet – primarily coastal Queensland, Australia, to be exact. This fascinating arthropod remains rare and wonderful!

Contrary to similar species, this peculiar invertebrate typically inhabits forests or shrublands. Such environments offer it ample natural camouflage; the foliage and bark provide plenty of cover for its relatively long legs and body.

Goliath Stick Insects are remarkable creatures with long bodies and sturdy legs – especially males of larger species. Like many similar insects, the Goliath Stick Insect displays various shades of black and brown that make up its spectrum of colors.

Goliath Stick Insects are highly care-friendly exotic pets, widely bred on an international scale in captivity. Popular with children looking for pets, these insects are pretty tolerant to handling but quick to unleash their sharp spines when feeling threatened.

As their name implies, Goliath Stick Insects feed on eucalyptus leaves, and their owner should provide fresh leaves regularly as part of a balanced diet. A cage large enough for these insects (50 cm height x 40 cm wide/deep minimum dimensions is best); mesh cages may prevent escapees from injuring themselves or others through escape routes.

Though both genders of this remarkable insect possess wings, only males having lighter and slimmer frames can actually fly. Female branches tend to be heavier, with limited ability for flapping.

In nature, this excellent insect is preyed upon by both herbivorous and omnivorous birds alike. However, the goliath stick bug can fling its wings open to scare off predators, displaying vibrant golds, purples, reds, and yellows to provide an effective deterrent from any potential attacks.

Goliath Stick Insects have developed an ingenious way of disposing of their waste – known as frass (feces). When their droppings accumulate on the operculum organ on their abdomen, they use an evolved defense strategy known as body-flicking to throw them away and onto the ground, helping prevent predators from being able to detect their scent through this technique. This may have evolved as an evolutionary adaptation that allows avoid detection through scent alone.


Goliath stick bugs belong to the Phasmatodea order of insects that are known for their extraordinary camouflage abilities. Their bodies tend to mimic those of branches or trees for extra cover from predators; furthermore, their colors often change to simulate foliage.

Goliath stick insects can grow quite large; females, in particular, can reach nearly 25 centimeters. Females seem to prefer specific flora, such as eucalyptus trees. Their eggs appear similar to seeds, which is why ants carry them underground so as to stay safe from predators until their hatching occurs.

Adult Goliath stick bugs typically sport a light green hue with highlights of gold, purple, red, and yellow on their wings; males usually are slimmer and more delicate than their larger female counterparts, making them capable of flight, while the larger females cannot.

After spending time in their egg stage, young goliath stick bugs, commonly referred to as nymphs, emerge. Resembling miniature versions of adults that they will become, these immature insects undergo several molting periods as they mature. Their initial molt lasts over an hour, during which time their body size grows further, and spindles on legs develop further, after which it must carefully pull their old skin away to expose new ones below.

Once an adult goliath stick bug has matured into an adult form, it consumes a wide range of foods, most importantly, eucalyptus leaves, and this insect most popularly consumes fruit. To ensure maximum health and welfare for your goliath stick bug, it is essential to provide it with variety; fresh leaves should be provided at least twice weekly as an ideal feed regimen.