
Source: Wikimedia Commons
Eurycantha calcarata
A large stick insect of New Guinea, New Caledonia and the Solomon Islands, looking like bark or rotten wood. Both sexes are wingless and armoured with spines, and the curved thorn on the male's swollen hind femur is large enough to serve as a fish hook.
Eurycantha calcarata occurs in New Guinea, New Caledonia and the Solomon Islands. Its typical habitat is warm, humid rainforest, where it is found in foliage and in ground litter. Colour runs from light brown to black, and the insect resembles bark or rotten wood. Both sexes are wingless and armoured with spines on the body and legs. Males are small and slender at under 9-10cm while females are typically 14cm. The male's hind femur is enlarged and carries a curved thorn beneath, large enough to be used as a fish hook in New Guinea. Only the female has the larger abdomen, tipped with an ovipositor. It feeds at night and groups together by day under bark and in tree hollows for protection, and like other stick insects it evades predators by crypsis and catalepsy.
Source: Wikipedia (CC BY-SA 4.0)
The Thorny Devil Stick Insect lives Adults 1-2 years.
The Thorny Devil Stick Insect grows to Males under 9-10cm, females about 14cm.
Origin
New Guinea, New Caledonia and the Solomon Islands
Lifespan
Adults 1-2 years
Size
Males under 9-10cm, females about 14cm
Temperature
20〜28℃
Sources: Wikipedia (en): Eurycantha calcarata / GBIF: Eurycantha calcarata Lucas, 1869 / Stick insects - Wikipedia (JA); life cycle and lifespan / Plant Protection Station, MAFF Japan: import of insects and microorganisms
Edited & verified by: BreederDirect editorial team
The taxonomic, regulatory, and husbandry data on this page are compiled and verified against the authoritative primary sources below.
Accepted name: Eurycantha calcarata Lucas, 1869
Authority databases: GBIF
Nomenclature follows global taxonomic authority databases.
Plant Protection Act: The import of insects, foreign stick insects included, is regulated under Japan's Plant Protection Act, and whether a given species may enter depends on the country it comes from. What circulates in Japan is captive-bred stock.
Sources: CITES Appendix (checklist.cites.org) / Plant Protection Station, MAFF Japan: import of insects and microorganisms
Regulations may change. Always verify the latest information with the relevant authorities.
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Humidity
60〜80%
The leaves of eucalyptus, ficus, bramble, raspberry, rose, cherry laurel and guava
It comes from warm, humid rainforest, so mist the enclosure against drying. Provide bark or a hollow to stand in for the daytime retreats it uses in the wild.
It normally reproduces sexually, the eggs hatching four and a half to six and a half months later, and turns to parthenogenesis when no males are present. The eggs are about 8.2mm long and 4mm wide, somewhat cylindrical, ranging from brown to grey, with a rough, shiny surface. The female uses her ovipositor to lay in soft soil. Nymphs hatch brown at 30-40mm and, being defenceless, climb to the top of the food plants and gather there. Males fight hard for mating rights.
It shelters in groups by day in the wild, so several can share an enclosure, but males fight over mating and need room if more than one is kept. The spines on the male's hind legs are formidable, so take care not to be gripped when handling.
Across stick insects as a whole, lifespans range from a few months to at most three years depending on the species. The egg stage alone runs four and a half to six and a half months, so a generation takes time.
The import of insects, foreign stick insects included, is regulated under Japan's Plant Protection Act, and whether a given species may enter depends on the country it comes from. What circulates in Japan is captive-bred stock, so buy from a clear source and never let one loose outdoors. The eggs look like plant seeds, so always check the substrate for them before discarding it.
Intermediate. This is an intermediate-level species. Some prior experience and knowledge of environmental management are recommended.
The average lifespan of Thorny Devil Stick Insect is Adults 1-2 years. With proper care and nutrition, they can live a long and healthy life.
Thorny Devil Stick Insect typically reaches Males under 9-10cm, females about 14cm as an adult. Size may vary depending on care conditions and individual genetics.
Thorny Devil Stick Insect feeds on: The leaves of eucalyptus, ficus, bramble, raspberry, rose, cherry laurel and guava. Aim for a balanced diet with appropriate feeding frequency.
The price of Thorny Devil Stick Insect varies significantly depending on bloodline, size, captive-bred generation, and sex. Check our market price page for the latest pricing information.
Last updated: September 17, 2026