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Luminary Oddities · Natural history & art

Malayan Jungle Nymph

Heteropteryx dilatata

Phasmatodea / Heteropterygidae

Heteropteryx dilatata is a robust Southeast Asian stick insect with sharply spined body surfaces. The broad female is green or yellow; the brown male resembles a curled dry leaf. Pink hindwings add a contrasting colour in both sexes.

Read the species account
Heteropteryx dilatata, dorsal view
Malayan Jungle NymphDorsal view.Illustration adapted from EO 400802 New Guinea Walking Stick Heteropteryx dilatata 001 by Smithsonian Institution, National Museum of Natural History. Public domain (Smithsonian Open Access).

At a glance

Family ↘
A stick insect in Heteropterygidae. [1]
Female colour ↘
Green or yellow body with translucent pink hindwings. [1]
Defence ↘
Spiny hind legs can clamp a threatening animal. [3]

Identity and classification

Heteropteryx dilatata (Parkinson, 1798) belongs to Heteropterygidae in Phasmatodea. The 2016 revision recognizes it as the sole described species of Heteropteryx. [1][2]

Morphology and identification

Females are bright green or yellow and have spines on the upper abdominal segments. Their hindwings are translucent pink. Males have a shortened middle thorax and dull pink hindwings; their brown body resembles a curled dead leaf. [1][3]

The elevated, conical head extends backward over the front margin of the pronotum. This feature helps distinguish Heteropteryx from the related genus Haaniella. [1]

Distribution and habitat

The revision documents Peninsular Malaysia, Thailand, Sumatra and northeastern Borneo. In Malaysia, the species inhabits tropical rainforest. [1][3]

Life cycle

Females deposit eggs in the ground. Cincinnati Zoo reports hatching after about a year in its species account. [3]

Feeding and host plants

Cincinnati Zoo maintains this leaf-eating insect on guava foliage in captivity. [3]

Behaviour

When threatened, the insect can close its spiny hind legs around the disturbance, clamping the source of contact between the spines. [3]

Nomenclature and history

Parkinson described the species as Phasma dilatatum in 1798. The female holotype is held in the Macleay Museum at the University of Sydney. [2]

Artistic interpretation

Display and care

Keep the enclosure closed and display it in indirect light, away from heat and damp conditions. Handle the frame by its edges and clean only its exterior according to the maker’s instructions.

Sources and further reading

  1. Revision of the Oriental subfamily Heteropteryginae Kirby, 1896 ↗

    Hennemann, Conle, Brock and Seow-Choen; Zootaxa 4159(1), 1–219 (2016) · Accessed 2026-10-11

  2. Heteropteryx dilatata (Parkinson, 1798) ↗

    Phasmida Species File · Accessed 2026-10-11

  3. Giant Spiny Leaf Insect ↗

    Cincinnati Zoo & Botanical Garden · Accessed 2026-10-11

Sources checked 2026-10-11. Illustrations · Luminary Oddities.

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