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Lonchodidae

Thorny Devil Stick Insect

Eurycantha calcarata
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BeginnerNocturnal · sleeping nowHuman-verified sheet
14:00
Day

Drag the sun. Thorny Devil Stick Insect is nocturnal, so what it is doing changes with the light.

Temperature

24–30°Ambient

One ambient band, 24–30°C. This sheet states no warm side, no cool side and no night figure, so none are shown.

Humidity

70–80%Target RH
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The numbers

Enclosure
40 × 30 × 30 cm
Diet
Bramble (staple), oak, eucalyptus, ficus, rose, guava · Fresh leaves always available; replace ~weekly
Temperature
24–30°C
Humidity
70–80%

Identity

Order / Family
Phasmatodea
IUCN / CITES
Not evaluated; not CITES-listed
Difficulty
Beginner–Intermediate
Commonality
Common
Adult size
F 12–15 cm robust; M ~10–13 cm with hind-leg spur
Lifespan
F ~8–12 mo adult; total ~12–18 mo
Growth rate
Medium
Activity & niche
Nocturnal · Ground-dwelling (hides by day)
Temperament
Docile; M defensive with spurred legs
Venom / defense
No venom; M clamps spiny hind legs (painful spur jab); musky odour
Price (THB)
฿300–700

Enclosure and conditions

Temperature
24–30°C
Humidity
70–80%
Min. enclosure
40×30×30 cm floor space; bark hides; moist floor
Substrate
Moist coco/soil (few cm) for buried eggs
Hides / decor / water
Bark/cork tubes to hide by day; water dish; mist plants

Diet

Staple food
Bramble (staple), oak, eucalyptus, ficus, rose, guava
Feeding frequency
Fresh leaves always available; replace ~weekly
Supplements
None; fresh host leaves only

Behaviour and handling

Handling
Docile but adult M can spur-jab — grip behind legs, support body
Communal
Yes — gregarious but provide hides to avoid squabbles
Defense / stress signs
Rears, snaps spurred hind legs shut; emits odour; plays dead

Reproduction

Reproduction
Sexual; eggs buried in soil; hatch ~4–6 mo

Common health problems

Common health issues
SignsMismoult if floor dry, dehydration, spur injuries between males
Red flags / quarantine
SignsSluggish, shrivel, mould, mite load

Good to know

  • In Papua New Guinea it was used as a natural fish hook thanks to its leg spurs

Others in this group

Sources