Reptoria

Large-scaled angle-headed lizard (Gonocephalus megalepis)

Agamas · Difficulty: Expert

Key facts and care guidance for Large-scaled angle-headed lizard (Gonocephalus megalepis) (origin: Sumatra (Indonesia), montane rainforest (the southern Bukit Barisan range, partly above 1,100 m)). Adult size around medium-sized, approx. 30–40 cm total length (uncertain for this species). Life expectancy approx. 8–12 years (an estimate, no captive data). The values below are carefully researched guidance.

Short answers

Large-scaled angle-headed lizard: How big does the enclosure need to be?

80×60×120 cm for one animal (larger for a pair), vertical, densely planted.

Large-scaled angle-headed lizard: What temperature does it need?

Daytime 22–27 °C (montane forest species, rather cooler), basking spot 28–30 °C (moderate), at night 18–21 °C.

Large-scaled angle-headed lizard: Does it need UVB lighting?

UVB: UVB recommended (Ferguson zone 1–2, UV index 1–3; ~5–10 % UVB).

Large-scaled angle-headed lizard: How long do they live?

Life expectancy: approx. 8–12 years (an estimate, no captive data).

Large-scaled angle-headed lizard: Is it suitable for beginners?

No – better suited to experienced keepers (difficulty: Expert).

Climate

Daytime temperature
22–27 °C (montane forest species, rather cooler)
Night temperature
18–21 °C
Basking spot
28–30 °C (moderate)
Humidity
80–95 %
UVB
UVB recommended (Ferguson zone 1–2, UV index 1–3; ~5–10 % UVB)

Enclosure

Minimum size
80×60×120 cm for one animal (larger for a pair), vertical, densely planted
Substrate
Forest floor or coco humus with sphagnum moss and leaf litter, moisture-retaining

Feeding

Food
Insects: house crickets, roaches, crickets, locusts, worms
Feeding interval
adults 2–3×/week, juveniles (almost) daily

Key facts

Adult size
medium-sized, approx. 30–40 cm total length (uncertain for this species)
Life expectancy
approx. 8–12 years (an estimate, no captive data)
Origin
Sumatra (Indonesia), montane rainforest (the southern Bukit Barisan range, partly above 1,100 m)
Protection status
Not listed under CITES; import under EU law and the law of the country of origin, proof of origin is advisable
Brumation
No real winter rest; as a montane forest species keep them somewhat cooler with a stronger night-time drop
Cohabitation
Keeping singly is recommended; pairs (1.1) only with plenty of space and supervision. Never house males together (territorial).

Notes

"Bleeker's forest dragon"; practically absent from captivity. The figures are derived entirely from the genus standard, adjusted for its montane forest origin (cooler, high humidity). Very uncertain.

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Related species

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What you need to start

To keep Large-scaled angle-headed lizard (Gonocephalus megalepis) you typically need: a suitable enclosure (80×60×120 cm for one animal (larger for a pair), vertical, densely planted), substrate (Forest floor or coco humus with sphagnum moss and leaf litter, moisture-retaining), a heat source with a thermostat, UVB lighting, thermometer and hygrometer, a water dish and hides. You will find equipment in the Reptoria marketplace.

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Last updated: 25 September 2026 · Editor: Reptoria editorial team · Sources include: https://en.wikipedia.org/wiki/Gonocephalus_liogaster, https://en.wikipedia.org/wiki/Gonocephalus_megalepis

All values are non-binding guidance and do not replace expert advice. Research thoroughly from several sources before acquiring and keeping an animal, and observe the applicable law (species and animal protection in particular).