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  3. Jungle Nymph

One of the 4 insects on WAnimals

Insects · Phasmatodea · Heteropterygidae

Jungle Nymph

Heteropteryx dilatata

Not Evaluated

It has not yet been assessed against the IUCN criteria.

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The Malaysian giant stick insect is among the heaviest in the world: the female, bright green and bristling with spines, reaches sixteen centimetres and weighs more than sixty grams, while the male is brown, slender and able to fly. It lives in the rainforest of South-East Asia, feeding on leaves.

Weight

up to 65 g

Size

up to 17 cm

Life expectancy

2 years

Diet

Herbivore

Feeds mainly on plants.

Activity

Nocturnal

Active mainly at night.

Social structure

Solitary

Lives and hunts alone, joining others only to breed.

Sighting difficulty

Unknown

Rainforest
13countries18parks

Fun facts

  • Its female is among the heaviest insects alive and lays the largest eggs known in any insect, comparable to a peanut.
  • It defends itself by snapping its spiny hind legs shut on whatever is holding it, and it also produces an audible hiss by rubbing its reduced wings together.
  • Incubation of its eggs can last more than a year, one of the longest embryonic developments in the insect world.
  • It is the heaviest stick insect in the world: females can exceed 60 g.
  • Its incubation is among the longest of any stick insect: between seven and fourteen months buried in the ground.
  • The dimorphism is extreme: the female is lime green, broad, flightless and very aggressive, while the male is mottled brown, slender and winged.
  • When threatened, the female raises her abdomen and snaps her spine-covered hind legs shut like a pair of pincers.
  • The nymphs change colour between day and night and roost in groups until the fourth instar.

Life cycle and biology

Habitat and environment
Rainforest of Malaysia, Borneo and Sumatra
Gestation / incubation
The eggs take between 7 and 14 months to hatch

Sources consulted: Wikipedia (Heteropteryx); Phasmid Study Group (PSG 18); Catalogue of Life

Where to find it

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The pins mark the parks where its presence is documented.

Where to see it

Parks and dive sites where this species has been documented — showing 10 of 18.

Related species

Other species in the catalogue with the most in common with Jungle Nymph — same habitat, park, country, tags or family.

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Keep exploring

Based on what we already know about jungle nymph.

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See full glossary
This page in other languages: Español · Deutsch · Français · Português · Italiano
See its range on the interactive map→
Gunung LeuserIndonesia
Way KambasIndonesia
Khao YaiThailand
Gunung MuluMalaysia
KinabaluMalaysia
Ulu TemburongBrunei
Bukit Timah Nature ReserveSingapore
Khao Sok National ParkThailand
BakoMalaysia
Taman NegaraMalaysia
See all 18 parks
Least Concern

Sunda Flying Lemur

Galeopterus variegatus

Sumatran RhinocerosCritically Endangered

Sumatran Rhinoceros

Dicerorhinus sumatrensis

Malayan TapirEndangered

Malayan Tapir

Tapirus indicus

Not Evaluated

Atlas Moth

Attacus atlas

Not Evaluated

Giant Leaf Insect

Phyllium giganteum

Giant African SnailNot Evaluated

Giant African Snail

Lissachatina fulica

CountriesMalaysia
ParksGunung LeuserIndonesia
TagsHerbivore
Herbivore
Nocturnal
Solitary
Insect
Rainforest
Malaysia
Indonesia
Thailand
Brunei
Singapore
Cambodia
Brunei
Cambodia
China
Indonesia
Laos
Malaysia
Myanmar
Philippines
Singapore
Taiwan
Thailand
Timor-Leste
Vietnam