Halys Pit Viper
Gloydius halys
A widespread Central Asian pit viper found across steppe, desert, and semi-arid habitats.
- Venomous?
- Venomous
- Adult length
- 0.5-0.8 m (1.6-2.6 ft)
- Range
- Central Asia, Mongolia, northern China, and parts of Russia
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Overview
The Halys pit viper occupies a broad range across Central Asia, Mongolia, northern China, and southern Russia. It is one of the most widely distributed Gloydius species, tolerating a variety of arid to semi-arid environments.
Its adaptability to different habitats has made it a relatively well-studied representative of the Asian pit viper group.
How to identify it
- Grayish, tan, or brownish body with dark, often paired dorsal blotches
- Stout body typical of Gloydius vipers
- Broad triangular head distinct from the neck
- Vertically elliptical pupils
- Keeled scales
- Distinguished from related species mainly by geographic range and subtle pattern variation
Habitat & range
Inhabits steppe, semi-desert, rocky terrain, and agricultural edges across Central Asia, Mongolia, and northern China, often at moderate elevations.
Behavior, diet & reproduction
Active by day in cooler seasons and more crepuscular or nocturnal in summer heat. Feeds on rodents, lizards, and birds. Gives live birth to litters of young in late summer.
Frequently asked questions
Where is the Halys pit viper found?
It ranges widely across Central Asia, Mongolia, northern China, and parts of Russia.
Is it venomous?
Yes, it is a venomous pit viper.
What habitats does it prefer?
It favors steppe, semi-desert, and rocky terrain across its wide range.
What does it eat?
Rodents, lizards, and birds make up much of its diet.
Halys Pit Viper guides
In-depth guides for identifying and understanding Halys Pit Viper.
