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Reptiles of Thailand

Species of Thailand

Common wolf snake

Thai: งูปล้องฉนวนสร้อยเหลือง (ngu plong cha nuan soy lueang)

Binomial name: Lycodon capucinus, Heinrich Boie in Friedrich Boie, 1827

Lycodon capucinus, also known as the common wolf snake, is a species of colubrid snake, which is commonly found in the Indo-Australian Archipelago. Named after their enlarged front teeth, which gives them a muzzled appearance similar to canines, it also makes the snout somewhat more squarish than other snakes.


A slender-bodied small snake that ranges from barely three feet to less than one meter. Most wild-caught specimens usually reach less than these lengths. Coloration is adapted for life underground and on the forest floor. Shades of jet black, reddish-brown or dark gray with speckles, blotches and spots of white or pale yellow scattered over the body are its usual colors. There is also a distinct white coloration around its neck. Their color patterns vary from one geographic location to another. There are albino-colored ones which are very rare among this snake species. The snout is duck-bill-shaped for digging in soft or sandy ground. They have enlarged front teeth, but these are not used to inject venom. Like many other colubrids, they possess true fangs near the rear of their mouths and they will use these to inject venom into their prey. However, this species is relatively benign (not harmful) to humans.


The common wolf snake is found in Australia (Cook Islands), Myanmar, Cambodia, Thailand, Vietnam, Singapore, Laos, SE China, Hong Kong, Bangladesh,

India (Andaman Islands), Indonesia (Sumatra, Java, Bali, Sumbawa, Sumba, Komodo, Flores, Lomblen, Alor, Sawu, Roti, Timor, Wetar, Babar Islands, Kalao, Salajar, Buton, Sulawesi), West Malaysia, Johor: Pulau Besar, Maldives, Mascarenes (Mauritius, Reunion; fide Glaw, pers. comm.), and The Philippine Islands (Bantayan, Bohol, Cebu, Cuyo, Leyte, Luzon, Pampanga, Masbate, Mindanao, Mindoro, Negros, Palawan, Panay, Samar).


Though the wolf snake is non-venomous, it is quite a nervous snake when picked-up or handled and will not hesitate to bite. They may also move their tails in a to-and-fro motion much like a rattlesnake when they feel threatened. A fossorial animal, it loves burrowing down the earth but is most often found in open ground, on rocks or in low vegetation. Sometimes showing a semi-arboreal behavior. A nocturnal creature, it is most active during the night, but is also observed during daybreak. Most captive specimens become tame after some time and with proper handling.


In the wild, Lycodon capucinus feeds mainly on small lizards such as geckos and they are also among the top predators of skinks which makes it common to humans due to the abundance of prey near and in homes. They may also devour small frogs, if available. In captivity, they may be trained to feed on slender fishes such as goby or lizard-scented pinkie mice, though the latter proves to be harder.

Conservation Status

The IUCN listed this species as of Least Concern.' Though a very common snake, it is seldom seen. Continuous destruction of primary and secondary forests, conversion of fertile lands to agricultural and residential areas as well as indiscriminate human killings can threaten the survival of this animal.

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Scientific classification

Lycodon capucinus

Common names

  • German: Kapuzen-Wolfszahnnatter
  • English:
    • Common wolf snake
    • Indian wolf snake
  • Thai: งูปล้องฉนวนสร้อยเหลือง (ngu plong cha nuan soy lueang)


  • Lycodon capucinus, Van Stanley Bartholomew Wallach et al. (2014)
  • Lycodon capucinus, De Lange & Gernot Vogel (2005)
  • Lycodon aulicus capucinus, John W. Ferner et al. (2001)
  • Lycodon capucinus, Harold Cogger (2000)
  • Lycodon aulicus, Benedetto Lanza (1999)
  • Lycodon capucinus (Lycodon aulicus), Merel J. Cox et al. (1998)
  • Lycodon capucinus, Ulrich Manthey & Wolfgang Grossmann (1997)
  • Lycodon aulicus capucinus, BROWN et al. (Multiple authors) (1996)
  • Ophites aulicus, Ermi Zhao & Kraig Adler (1993)
  • Lycodon capucinus, Edward Harrison Taylor & Robert E. Elbel (1958)
  • Lycodon aulicus var. capucinus, Georg Haas (1950)
  • Lycodon aulicus capucinus, Thomas Barbour (1912)
  • Ophites septentrionalis nec Ophites septentrionalis, Albert Charles Lewis Günther (1875)
  • Lycodon aulicus var. D, Albert Charles Lewis Günther (1858)
  • Lycodon aulicum (partim), André Marie Constant Duméril et al. (1854)
  • Lycodon hebe, Hermann Schlegel (1837)
  • Lycodon capucinus, Heinrich Boie in Friedrich Boie (1827)
  • Coluber hebe, François Marie Daudin (1803)
  • Lycodon aulicus nec Coluber aulicus, Carolus Linnaeus (1758)

Conservation status

Least Concern (IUCN3.1)

Least Concern (IUCN3.1)

Lycodon capucinus

Lycodon capucinus

Creative Commons Attribution-ShareAlike 4.0 International Thai National Parks

Lycodon capucinus

Lycodon capucinus

Creative Commons Attribution-ShareAlike 4.0 International Thai National Parks

Lycodon capucinus

Lycodon capucinus

Creative Commons Attribution-ShareAlike 4.0 International Thai National Parks

Distribution map of Common wolf snake, Lycodon capucinus in Thailand
  • Ban Lat District, Phetchaburi
  • Ban Phaeo District, Samut Sakhon
  • Cha-Am District, Phetchaburi
  • Doi Inthanon National Park
  • Doi Suthep-Pui National Park
  • Dong Charoen District, Phichit
  • Hat Noppharat Thara - Mu Ko Phi Phi National Park
  • Huai Kha Khaeng Wildlife Sanctuary
  • Kaeng Krachan District, Phetchaburi
  • Kaeng Krachan National Park
  • Kantharalak District, Sisaket
  • Khao Nang Panthurat Forest Park
  • Khao Sam Roi Yot National Park
  • Khao Yai National Park
  • Khok Samrong District, Lopburi
  • Ko Lanta District, Krabi
  • Ko Lanta National Park
  • Ko Pha Ngan
  • Ko Pha-ngan District, Surat Thani
  • Ko Samui District, Surat Thani
  • Lam Nam Kra Buri National Park
  • Long District, Phrae
  • Mae Yom National Park
  • Mueang Chonburi District, Chonburi
  • Mueang Kanchanaburi District, Kanchanaburi
  • Mueang Phetchaburi District, Phetchaburi
  • Mueang Phuket District, Phuket
  • Mueang Tak District, Tak
  • Nakhon Thai District, Phitsanulok
  • Nam Nao National Park
  • Pang Mapha District, Mae Hong Son
  • Pang Sida National Park
  • Pho Thong District, Ang Thong
  • Phu Luang Wildlife Sanctuary
  • Phuket Province
  • Prasat District, Surin
  • Sai Yok District, Kanchanaburi
  • Sakaerat Environmental Research Station
  • Salak Pra Wildlife Sanctuary
  • Sawi District, Chumphon
  • Tarutao National Marine Park
  • Tha Song Yang District, Tak
  • Tha Yang District, Phetchaburi
  • Thalang District, Phuket
  • Thale Ban National Park
  • Thep Sathit District, Chaiyaphum
  • Wang Nam Khiao District, Nakhon Ratchasima

Range map of Lycodon capucinus in Thailand

Important note; our range maps are based on limited data we have collected. The data is not necessarily accurate or complete.

Special thanks to Ton Smits, Parinya Pawangkhanant, Ian Dugdale and many others for their contribution for range data.

It is free to use this map on various media. See the creative common license terms by clicking "CC" icon below the map. But remember, again; the map may not be accurate or complete.

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