Thai National Parks

Lizards and crocodiles of Thailand

Species of Thailand

Siamese blue crested lizard

In Thai: กิ้งก่าหัวสีฟ้า, ging ga hua si faa

Binomial name: Calotes mystaceus, André Marie Constant Duméril & Gabriel Bibron, 1837

Calotes mystaceus, the Indo-Chinese forest lizard is an agamid lizard found in China, South Asia and Southeast Asia.


Physical Structure: Upper head-scales smooth or feebly keeled, imbricate, scarcely enlarged on supraorbital region; a few small spines on each side of the head above the tympanum; latter measuring at least half the diameter of the orbit. Gular sac small; gular scales feebly keeled, as large as dorsals. An oblique fold in front of the shoulder. Dorso-nuchal crest well developed in the male, composed of falciform spines directed backwards, the longest measuring the diameter of the orbit; it gradually decreases in height on the back, being reduced to a mere denticulation on the sacrum. 45-53 scales round the middle of the body; dorsal scales keeled, nearly twice as large as ventrals, all directed upwards and backwards; ventral scales strongly keeled. The adpressed hind limb reaches the tympanum or the posterior border of the orbit; fourth finger slightly longer than the third. Tail a little compressed, at the base with a slightly serrated upper ridge.

Color Pattern: Background color grey to olive, frequently with large transverse red spots on the back; lips yellowish.

Length: Maximum: 42 cm., Common: 28 cm. (Snout to vent 9.5 cm.).

Maximum published weight: ? g.


Cambodia, China (Yunnan), India (Mizoram), Laos, Myanmar (Tenasserim to Mandalay = Mandale and Kachin State 97°30E), Thailand (north of the Istmus of Kra), & Vietnam (South). And possibly found in Bangladesh (Chittagong Hill tracts), adjacent to Mizoram province of India.


Terrestrial & arboreal; diurnal; naturally found in forest, but can be found in treed neighborhoods and city parks.


Feeds on crickets, grasshoppers, moths, and other insects.




No known practical uses. Play rolls in eco-system by eating various types of insects and otherwise.

Threat to humans

Non-venomous and harmless to humans. Can give a painful bite if handled, but is not dangerous.

IUCN threat status

Not Evaluated (NE).

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Scientific classification

Calotes mystaceus

Common names

  • German: Blaue Schönechse
  • English:
    • Indo-Chinese forest lizard
    • Blue-crested lizard
  • Thai: กิ้งก่าหัวสีฟ้า, ging ga hua si faa


  • Calotes mystaceus, Nguyen Van Sang et al. (2009)
  • Calotes mystaceus, Ulrich Manthey & Norbert Schuster (1999)
  • Calotes mystaceus, Merel J. Cox et al. (1998)
  • Calotes mystaceus, Edward Harrison Taylor (1963)
  • Calotes mystaceus, Malcolm Arthur Smith (1935)
  • Calotes mystaceus, George Albert Boulenger (1885)
  • Calotes mystaceus, André Marie Constant Duméril & Gabriel Bibron (1837)

Range Map

Distribution map of Siamese blue crested lizard, Calotes mystaceus in Thailand
  • Ban Lat District, Phetchaburi
  • Bangkok Province
  • Chaloem Phra Kiat District, Buriram
  • Dan Makham Tia District, Kanchanaburi
  • Doi Inthanon National Park
  • Erawan National Park
  • Hua Hin District, Prachuap Khiri Khan
  • Huai Kha Khaeng Wildlife Sanctuary
  • Kaeng Krachan District, Phetchaburi
  • Kaeng Krachan National Park
  • Khao Nang Phanthurat Forest Park
  • Khao Yai National Park
  • Lan Sang National Park
  • Mae Chan District, Chiang Rai
  • Mueang Chiang Mai District, Chiang Mai
  • Mueang Kanchanaburi District, Kanchanaburi
  • Mueang Lampang District, Lampang
  • Mueang Nakhon Ratchasima District, Nakhon Ratchasima
  • Mueang Phichit District, Phichit
  • Mueang Udon Thani District, Udon Thani
  • Mueang Uttaradit District, Uttaradit
  • Na Wang District, Nong Bua Lamphu
  • Nong Ya Plong District, Phetchaburi
  • Pak Thong Chai District, Nakhon Ratchasima
  • Phen District, Udon Thani
  • Phrom Phiram District, Phitsanulok
  • Pua District, Nan
  • Sai Yok District, Kanchanaburi
  • Sakaerat Environmental Research Station
  • Salak Pra Wildlife Sanctuary
  • Sung Noen District, Nakhon Ratchasima
  • Tha Muang District, Kanchanaburi
  • Tha Yang District, Phetchaburi
Range map of Calotes mystaceus in Thailand