Giant Spiny Stick Insect
Eurycantha calcarata
Also known as the Thorny Devil Stick Insect, this ground-dwelling phasmid mimics a thick, spiny piece of bark. Males possess spurs on their hind legs for defense. Nocturnal, gregarious, and terrestrial.
Umgebung
Terrestrisch
Luftfeuchtigkeit
70 - 80 %
Tagestemperatur
20 - 25 °C
Nachttemperatur
20 - 22 °C
Artbeschreibung
Geographical Origin and Habitat: Native to the dense and humid tropical rainforests of Papua New Guinea. Unlike the vast majority of stick insects that live high in the canopy, *Eurycantha calcarata* lives primarily on the ground or on fallen logs, hiding during the day in decaying leaf litter or wet wood crevices.
Taxonomy and Genetics: Belonging to the family Phasmatidae, *Eurycantha calcarata* is distinguished from typical stick insects by its robust, heavily armored body rather than a twig-like appearance. No significant color morphs are established in the hobby, and the species reproduces both sexually and occasionally through parthenogenesis.
Behavior and Habits: Strictly nocturnal and highly gregarious, often clustering together under wood during the day. If disturbed, they emit a strong, unpleasant chemical odor, and the male will raise his abdomen defensively and open his hind legs to ward off potential threats.
Morphology: They resemble robust pieces of dark bark. Females are larger (up to 15 cm), olive-brown, and possess a beak-like ovipositor at the end of the abdomen. Males are slimmer, darker, and are characterized by hypertrophied femoral spurs on their hind legs.
Pflege, Zucht und Mitbewohner
Terrarium Setup: Requires a wide, low terrarium (minimum 60x45x45 cm). Place hollow cork bark logs on the floor as daytime shelters. Use a deep substrate (5-7 cm) of damp peat mixed with sand for the females to bury their eggs.
Lighting and Heating: Maintain daytime temperatures between 22 and 26°C, with a nighttime drop to 20°C. A natural diffused light cycle is required. Avoid direct sources of excessive heat.
Humidity and Hydration: Maintain a relative humidity of 70% to 80% through daily misting in the evening. This allows the insects to drink from droplets accumulated on leaves and facilitates proper molting.
Feeding and Supplementation: Strictly herbivorous. They feed voraciously on fresh leaves of bramble (blackberry), ivy, oak, and hazel. It is essential that the foliage is pesticide-free and kept fresh in a container of water.
Compatibility: Highly tolerant and gregarious with others of their own species. They can be kept in groups in spacious enclosures. They should not be housed with predators or very active insects that could disturb them during molting.
Health and Common Diseases: Avoid rough handling of males due to their femoral spurs. Ensure sufficient vertical clearance above branches so they can hang vertically during molting, preventing permanent physical deformities.
Geografische Herkunft und Verbreitung
Native to the dense and humid tropical rainforests of Papua New Guinea. Unlike the vast majority of stick insects that live high in the canopy, *Eurycantha calcarata* lives primarily on the ground or on fallen logs, hiding during the day in decaying leaf litter or wet wood crevices.
Ursprung
Afrika und MadagaskarAustralien, Neuguinea und Ozeanien
Profil der terrestrischen Wirbellosen
- Diät
- Herbivore
- They are voracious herbivores capable of consuming massive quantities of leaves. They readily accept bramble (blackberry and raspberry), oak, ivy, and eucalyptus. Their strong mandibles allow them to chew through tougher, older leaves that other stick insects might ignore. Constant access to fresh, pesticide-free foliage is mandatory.
- Erwachsenengröße
- 19 cm
- Lebensstil/Mikrohabitat
- Arboreal
- Unlike many stick insects that rely on looking like thin twigs, this robust, heavily armored species leads a semi-terrestrial lifestyle. They are powerful climbers but prefer to spend their resting hours near or on the ground. They are built for defense and durability rather than pure, delicate camouflage.
- Aktivitätszyklus
- Nocturnal
- The Giant Spiny Stick Insect is strictly nocturnal. During the daylight hours, they completely hide themselves, often clustering together in tight, dark spaces like hollow logs, cork bark tubes, or under leaf litter. As darkness falls, they emerge and climb into the canopy to forage actively for food.
- Sozialität
- Gregarious
- They are highly gregarious and exhibit a strong clustering behavior during the day, where dozens of individuals will cram themselves into a single dark hideout. They can be housed communally with great success, but males may occasionally spar over territory or females, so ample space and multiple hiding spots are necessary.
- Reproduktion
- Oviparous
- Reproduction is primarily sexual. Females possess a long, pointed ovipositor at the end of their abdomen, which they use to meticulously bury their large, barrel-shaped eggs deep into the damp substrate. The eggs undergo a very long incubation period, often taking between 4 to 6 months to hatch.
- Giftig
- No
- Handhabungstoleranz
- With caution
- Handling must be done with extreme caution, particularly with adult males. Males possess massive, incredibly sharp spur-like thorns on their thick hind legs. When threatened, they will raise their abdomen and aggressively snap their hind legs together, which can easily puncture human skin and cause significant pain and bleeding.
- Brumation
- Nicht erforderlich
- Native to the tropical rainforests of Papua New Guinea, they do not undergo brumation. They require a consistently warm environment with high humidity year-round. Cold drafts, dry conditions, or significant temperature drops can cause severe respiratory issues, shedding problems, and eventual death. They need a stable, tropical enclosure.
- Häutung
- Periodic
- Due to their heavy, robust build, molting is a highly stressful event. They require a significant amount of vertical climbing space to hang upside down and pull their large bodies free of the old skin. High ambient humidity is critical during this time to prevent fatal mis-molts or the loss of limbs.
Bildergalerie
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