Diadem Snake
Spalerosophis diadema
A robust desert colubrid with striking patterned coloration, found across arid regions from North Africa to South Asia.
- Venomous?
- Non-venomous
- Adult length
- 1.0-1.8 m (3.3-6 ft)
- Range
- North Africa, Middle East, and Central/South Asia
Found a snake like this?
Identify any snake from a photo, free.
Overview
The Diadem Snake is a large, robust colubrid widely distributed across arid and semi-arid regions from North Africa through the Middle East to Central and South Asia. It is harmless to humans, though it can display an aggressive defensive posture and produce a loud hissing display when threatened.
Its name is thought to reference the crown-like markings on its head, a striking feature that aids identification in the field.
How to identify it
- Large, heavy-bodied colubrid with smooth scales
- Base color pale tan, yellowish, or reddish-brown with dark brown or black blotches and crossbands
- Distinctive dark markings on the head resembling a crown or diadem
- Large eyes with round pupils
- Adults can exceed 1.5 meters in length
The combination of large size, bold blotched pattern, and crown-like head markings separate it from smaller sympatric colubrids.
Habitat & range
Inhabits deserts, semi-desert scrubland, and rocky arid terrain across North Africa, the Arabian Peninsula, the Middle East, and into Pakistan, India, and Central Asia. Often shelters in rodent burrows, rock crevices, or under debris during the heat of the day.
Behavior, diet & reproduction
Primarily nocturnal, though sometimes active at dusk in cooler conditions. Known for a dramatic defensive display involving loud hissing, body inflation, and striking, despite being non-venomous. Feeds on rodents, birds, lizards, and their eggs, subduing prey by constriction. Reproduction is egg-laying (oviparous), with moderate to large clutch sizes.
Frequently asked questions
Is the Diadem Snake venomous?
No, the Diadem Snake is non-venomous, though it can be defensively aggressive.
Why is it called the Diadem Snake?
Its name refers to distinctive crown-like dark markings on top of its head.
Where is the Diadem Snake found?
It ranges across North Africa, the Middle East, and into Central and South Asia.
How big does the Diadem Snake get?
It is a large colubrid, with adults commonly reaching 1 to 1.8 meters in length.
Diadem Snake guides
In-depth guides for identifying and understanding Diadem Snake.
