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Giant Leaf Insect

Pulchriphyllium giganteum

The giant leaf insect is a masterpiece of natural camouflage. Females are large, flat, and green, perfectly mimicking a leaf with veins and fake brown spots. They reproduce entirely through parthenogenesis in captivity (no males exist). Requires a highly ventilated vertical mesh terrarium with high humidity, feeding exclusively on fresh bramble (blackberry) or oak leaves.

Taxonomy
Class:Insecta
Order:Phasmida
Family:Phylliidae
Genus:Pulchriphyllium
Species:Pulchriphyllium giganteum
Formerly known as:Phyllium giganteum

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Environment

Terrestrial

Humidity

70 - 80 %

Day temperature

22 - 30 °C

Night temperature

20 - 24 °C

UVB

None

Species description

Geographical Origin and Habitat: Native to the warm and highly humid tropical rainforest canopies of Malaysia. They spend their entire lives clinging to the upper branches of trees, exposed to tropical winds and rains.
Taxonomy and Genetics: An evolutionary masterpiece. They are the widest and most massive leaf insects, yet remarkably flat. Adult females reach 11-12 cm in length and are as wide as a human palm. The camouflage is complete: the body, abdomen, and leg lobes are vibrant lime green, with leaf-like veins and brown spots on the edges that mimic leaf decay. They have large forewings but are flightless.
Behavior and Habits: Strictly nocturnal and very inactive during the day. When disturbed, they sway rhythmically to mimic a leaf in the wind. If threatened, they may drop to the ground and feign death (thanatosis).
Morphology: In captivity, males are absent; the population consists entirely of females reproducing via parthenogenesis. In the wild, males are smaller, slender, have longer wings, and are capable of flight.

Care, breeding and tankmates

Terrarium Setup: Requires a vertical terrarium (minimum 30x30x45 cm) with mesh ventilation. Good airflow is critical; stagnant air is fatal. Provide diagonal branches for the insects to hang from during molting. Use paper towels on the floor to easily collect frass and eggs.
Lighting and Heating: Keep temperatures between 22 and 26°C. Avoid direct heat sources. A normal room light cycle is sufficient.
Humidity and Hydration: Maintain high humidity (70-85%) through daily evening misting. The insects drink water droplets from the leaves. Good ventilation must be maintained to prevent mold and bacterial infections.
Feeding and Supplementation: Strictly herbivorous. Feed on fresh, pesticide-free bramble (blackberry/raspberry), oak, hazel, or beech leaves. Replace the food branches every 3-5 days to keep them fresh.
Compatibility: Peaceful and gregarious. Can be kept in groups. Do not house with predators or active insects that might disturb them during molting.
Health and Common Diseases: Stagnant air leads to fatal bacterial rot, while dry air causes shedding failures. Ensure vertical space is sufficient for safe molting, as a bad molt can cause leg loss or death. Eggs take 6-9 months to hatch.

Geographic Origin and Distribution

Native to the warm and highly humid tropical rainforest canopies of Malaysia. They spend their entire lives clinging to the upper branches of trees, exposed to tropical winds and rains.

Origin

South and Southeast Asia

Terrestrial invertebrate profile

Diet
No verified data available
Life expectancy
No verified data available
Adult size
No verified data available
Lifestyle/Microhabitat
No verified data available
Activity cycle
No verified data available
Sociality
No verified data available
Reproduction
No verified data available
Venom level
No verified data available
Handling tolerance
No verified data available
Brumation
No verified data available
Molting
No verified data available

Image gallery

Licensed images linked to the species or, when marked, to the closest representative taxon.

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Last updated: 08/10/2026