Blue Krait
Bungarus candidus
A highly venomous, nocturnal krait known for potent neurotoxic venom and a docile daytime demeanor that masks serious danger after dark.
- Venomous?
- Venomous
- Adult length
- 1-1.6 m (3.3-5.3 ft)
- Range
- Southeast Asia, including Thailand, Indonesia, Malaysia, and Vietnam
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Overview
The Blue Krait, also called the Malayan Krait, is a member of the krait genus known for possessing some of the most potent neurotoxic venom among Southeast Asian snakes. Bites are uncommon during the day, when the snake is sluggish, but the species becomes far more active and defensive at night.
It is widely distributed across mainland and insular Southeast Asia, often in close proximity to human settlements, which raises the risk of accidental encounters after dark.
How to identify it
- Body pattern of narrow black and pale bluish-white or cream crossbands
- Smooth, glossy scales with a distinctly triangular or ridged cross-section along the spine
- Small, rounded head not much wider than the neck
- Round pupils
- Distinguished from similar banded species by the enlarged vertebral scale row typical of kraits
Habitat & range
Found in lowland forests, rice paddies, agricultural land, and areas near human habitation across Southeast Asia, often close to water sources.
Behavior, diet & reproduction
Strongly nocturnal, generally passive and slow-moving during the day but active and more likely to bite defensively at night. Feeds primarily on other snakes as well as small vertebrates. Egg-laying.
Frequently asked questions
Is the Blue Krait dangerous?
Yes, it is highly venomous with potent neurotoxic venom, though it is generally docile during daylight hours.
When is it most active?
It is strongly nocturnal, becoming much more active and alert after dark.
What does it eat?
Mainly other snakes, along with small vertebrates such as lizards and rodents.
Where is it found?
Across mainland and insular Southeast Asia, including Thailand, Vietnam, Malaysia, and Indonesia.
Blue Krait guides
In-depth guides for identifying and understanding Blue Krait.
