Reptoria

Emma Gray's forest lizard (Calotes emma)

Emma Gray's forest lizard (Calotes emma), typical appearance of the species

Agamas · Difficulty: Intermediate

Key facts and care guidance for Emma Gray's forest lizard (Calotes emma) (origin: South and South-East Asia (India / Assam, Bangladesh, Myanmar, southern China / Yunnan, Thailand, Laos, Cambodia, Vietnam, northern Malaysia); deciduous, humid and coastal forest). Adult size around up to ~38–40 cm total length (SVL ~10 cm, the tail approx. two thirds). Life expectancy over 10 years. The values below are carefully researched guidance.

Short answers

Emma Gray's forest lizard: How big does the enclosure need to be?

60×60×150 cm (W×D×H) for one animal (arboreal, tall).

Emma Gray's forest lizard: What temperature does it need?

Daytime 25–30 °C, basking spot up to 35 °C, at night 20–24 °C.

Emma Gray's forest lizard: Does it need UVB lighting?

UVB: UVB needed (Ferguson zone 2–3, UV index 3–4).

Emma Gray's forest lizard: How long do they live?

Life expectancy: over 10 years.

Emma Gray's forest lizard: Is it suitable for beginners?

Rather not – it is considered an intermediate species (difficulty: Intermediate).

Climate

Daytime temperature
25–30 °C
Night temperature
20–24 °C
Basking spot
up to 35 °C
Humidity
60–80 %
UVB
UVB needed (Ferguson zone 2–3, UV index 3–4)

Enclosure

Minimum size
60×60×150 cm (W×D×H) for one animal (arboreal, tall)
Substrate
Coco humus or forest floor with leaf litter; plenty of climbing wood and plants, somewhere to drink

Feeding

Food
Insects (termites, locusts, crickets, roaches, beetles, moths, insect larvae)
Feeding interval
adults 2–3×/week, juveniles daily

Key facts

Adult size
up to ~38–40 cm total length (SVL ~10 cm, the tail approx. two thirds)
Life expectancy
over 10 years
Origin
South and South-East Asia (India / Assam, Bangladesh, Myanmar, southern China / Yunnan, Thailand, Laos, Cambodia, Vietnam, northern Malaysia); deciduous, humid and coastal forest
Protection status
Not listed under CITES. Wild-caught animals are common in the trade – prefer captive-bred ones.
Brumation
No real winter rest; a slight seasonal dry spell is possible
Cohabitation
Keeping it singly is the default. A pair (1.1) or one male with several females is also possible in a large, structured, planted enclosure with visual barriers. Never house males together - territorial fights are documented.

Notes

An arboreal species (it prefers the lower trunk areas); the males darken in the mating season. It needs height and climbing opportunities, and to drink from mist or dew droplets. A clutch of 10–12 eggs (May–June), with an incubation of about 60–70 days. Often wild-caught (check for parasites). The figures are documented across German and English sources.

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Related species

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What you need to start

To keep Emma Gray's forest lizard (Calotes emma) you typically need: a suitable enclosure (60×60×150 cm (W×D×H) for one animal (arboreal, tall)), substrate (Coco humus or forest floor with leaf litter; plenty of climbing wood and plants, somewhere to drink), a heat source with a thermostat, UVB lighting, thermometer and hygrometer, a water dish and hides. You will find equipment in the Reptoria marketplace.

The complete, interactive care database is in the Reptoria app.

Last updated: 9 October 2026 · Editor: Reptoria editorial team · Sources include: https://en.wikipedia.org/wiki/Calotes_emma, https://reptile-database.reptarium.cz/species?genus=Calotes&species=emma

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).