Indian Ornamental Tarantula (Poecilotheria regalis) Care Sheet
The Indian Ornamental Tarantula (Poecilotheria regalis) is a large, striking arboreal tarantula native to India. Its intricate black, white and grey dorsal patterning, contrasting yellow markings beneath the legs and impressive adult size have made it one of the best-known members of the genus Poecilotheria.
Although generally hardy when its basic requirements are met, this is not a beginner tarantula. P. regalis is extremely fast, capable of defensive biting and possesses medically significant venom.
It is an observational species and should not be handled.
Quick Facts
Scientific name: Poecilotheria regalis
Common names: Indian Ornamental Tarantula, Indian Ornamental Tree Spider, Indian Ornamental
Family: Theraphosidae
Origin: India
Lifestyle: Arboreal
Adult leg span: Approximately 15–20 cm (6–8 in), with some large females approaching the upper end of this range
Activity: Primarily nocturnal/crepuscular
Temperament: Extremely fast; generally retreat-oriented when given suitable cover but capable of strong defensive behaviour
Experience level: Advanced
Lifespan: Females commonly 10–15+ years; males substantially shorter-lived
Social behaviour: Solitary for normal captive husbandry
UVB: Not required
CITES: Appendix II
Natural Distribution
Poecilotheria regalis is native to India, where it occurs primarily in parts of southern and central India.
It is associated with forested habitats and is adapted to an arboreal existence.
In the wild, these tarantulas commonly shelter within:
- tree hollows
- cracks in bark
- cavities
- other narrow protected retreats
Their flattened body shape allows them to use relatively confined spaces within trees.
Habitat destruction and collection pressures affecting Indian ornamental tarantulas make responsible sourcing particularly important.
Captive-bred specimens should always be preferred.
Appearance
Poecilotheria regalis has the elaborate patterning responsible for the common name “ornamental”.
The upper surface typically displays:
- grey or silver colouration
- black markings
- white patterning
- complex symmetrical markings across the carapace and abdomen
The underside of the legs includes conspicuous yellow markings.
These bright ventral markings can become particularly visible when the spider adopts a defensive posture.
One feature commonly used to distinguish P. regalis from several similar Poecilotheria species is the pale band on the underside of the abdomen.
Correct identification is important because several members of the genus can appear superficially similar.
Adult Size
Adult females commonly attain a diagonal leg span of approximately:
15–20 cm (6–8 in)
Males are generally more slender and long-legged after reaching maturity.
As with other tarantulas, final size varies between individuals.
Lifespan
Females are substantially longer-lived than males.
Approximate captive expectations are:
Females: 10–15+ years
Males: Usually several years in total, with a relatively short adult lifespan after reaching maturity
Growth can be reasonably rapid when juveniles are maintained under suitable conditions and fed appropriately.
Natural Behaviour
Indian Ornamentals are predominantly arboreal.
During daylight they commonly remain hidden inside a vertical retreat before emerging after dark to:
- explore
- hunt
- maintain webbing
- wait for passing prey
They are capable of astonishing bursts of speed.
When frightened, an individual may rapidly disappear behind bark or into its retreat.
Providing an appropriate hide is therefore important for both welfare and safe management.
A spider that cannot escape may be considerably more likely to adopt defensive behaviour.
Temperament
Individual behaviour varies, but P. regalis should always be treated as a fast and potentially defensive Old World tarantula.
Possible defensive responses include:
- rapid retreat
- sudden bolting
- threat postures
- striking
- biting
The goal of good husbandry is not to make the spider “tame”.
Instead, the enclosure should allow routine maintenance without forcing close interaction with the animal.
Old World Tarantula Considerations
Poecilotheria regalis is an Old World tarantula.
Unlike many New World tarantulas, Poecilotheria species do not possess urticating abdominal hairs as their principal defence.
They rely instead upon:
- speed
- concealment
- threat displays
- biting when sufficiently threatened
This makes experience with fast-moving tarantulas highly desirable before keeping the species.
Venom and Bite Risk
The venom of Poecilotheria species is considered medically significant compared with that of many commonly maintained New World tarantulas.
Reported symptoms following bites from Poecilotheria species include:
- significant pain
- swelling
- muscle cramps
- muscular spasms
- nausea
- sweating
- increased heart rate
- weakness
- prolonged discomfort
Some systemic symptoms may persist or recur after the initial bite.
The severity of any individual bite cannot be predicted reliably.
A bite should therefore be taken seriously.
Seek appropriate medical attention following significant envenomation or if systemic symptoms develop.
Handling
Handling is strongly discouraged.
There is no husbandry requirement that makes routine handling necessary.
Handling creates unnecessary risks including:
- defensive bites
- escapes
- falls
- injury to the spider
- accidental crushing
For transfers, use secure containers, catch cups and appropriately long tools.
Never attempt to catch a bolting Poecilotheria with bare hands.
Enclosure
Adult P. regalis require a vertically oriented arboreal enclosure.
A useful minimum starting point for an adult is approximately:
30 × 30 × 45 cm
Larger enclosures can be used where they remain appropriately furnished and secure.
Enclosure design is more important than simply providing empty volume.
The spider needs:
- vertical climbing surfaces
- a secure retreat
- substrate
- ventilation
- water
- safe access for maintenance
Security
The enclosure must be escape-proof.
Pay particular attention to:
- door gaps
- ventilation holes
- cable openings
- loose lids
- sliding-door gaps
Juveniles can fit through surprisingly small openings.
Always know approximately where the spider is before opening the enclosure.
Never leave an open Poecilotheria enclosure unattended.
Arboreal Retreat
A tall piece of cork bark should form the main retreat.
Suitable options include:
- cork tubes
- curved cork slabs
- vertically positioned bark
- combinations of bark and artificial foliage
The retreat should ideally extend towards substrate level.
Many specimens construct webbed tunnels extending from the bark into the substrate.
A narrow, dark retreat generally provides greater security than a large exposed hide.
Substrate
Provide approximately:
5–10 cm of suitable substrate
Deeper areas can be provided around the base of the retreat.
Suitable substrates include:
- coco fibre
- pesticide-free topsoil
- soil/coco mixtures
- specialist invertebrate substrate
The substrate should retain some moisture while still allowing the surface to dry periodically.
Avoid fertilisers, pesticides and strongly aromatic materials.
Furnishings and Enrichment
Additional furnishings can include:
- branches
- cork pieces
- artificial plants
- suitable live plants
- leaf litter
These provide cover, climbing surfaces and webbing anchor points.
Enrichment for a tarantula primarily involves allowing it to perform natural behaviours rather than frequently changing its surroundings.
An established webbed retreat should therefore be left intact whenever possible.
Temperature
A suitable general temperature range is approximately:
22–27°C
Healthy specimens generally tolerate normal fluctuations within this range.
Avoid excessive temperatures.
If additional heating is required, heating the room is generally preferable to strongly heating an individual enclosure.
Any external heating equipment should be thermostatically controlled.
Never place an enclosure in direct sunlight.
Humidity and Moisture
Indian Ornamentals require access to moisture but should not be maintained in permanently saturated conditions.
A practical approach is to maintain:
- some moisture in the lower substrate
- a surface allowed to partially dry
- continuous access to fresh water
- strong ventilation
Occasional controlled moistening of part of the substrate is preferable to constantly soaking the entire enclosure.
Spiderlings can dehydrate more rapidly than adults and require closer attention to moisture.
Ventilation
Good airflow is essential.
Cross-ventilation is particularly useful in arboreal enclosures.
Poorly ventilated, permanently wet enclosures encourage:
- mould
- stagnant air
- excessive condensation
- undesirable microbial growth
Humidity and ventilation should never be viewed as opposing requirements.
A well-designed enclosure can provide both.
Water
Provide a shallow dish of clean drinking water at all times.
The dish should be accessible and stable.
Clean it whenever it becomes contaminated with:
- substrate
- feeder remains
- webbing
- waste
There is no need to use sponges or water gels.
Clean drinking water is appropriate.
Lighting
Special lighting is unnecessary.
Normal ambient room lighting providing a regular day/night cycle is sufficient.
UVB is not required for established tarantula husbandry.
Avoid intense lamps that significantly heat or dry the enclosure.
Feeding
Poecilotheria regalis is usually an enthusiastic predator.
Suitable feeder insects include:
- crickets
- locusts
- appropriately sized cockroaches
- mealworms
- superworms
- other suitable captive-produced invertebrate prey
Adult specimens can generally be offered:
one or two appropriately sized prey items every 7–14 days
Juveniles can receive smaller prey somewhat more frequently.
Feeding frequency should be adjusted according to:
- body condition
- prey size
- temperature
- age
- growth rate
- moulting cycle
Overfeeding
Avoid allowing the abdomen to become excessively enlarged.
An overweight arboreal tarantula may be particularly vulnerable to injury if it falls.
Reduce feeding when necessary.
Tarantulas can safely go considerable periods without food.
Food Refusal
Food refusal is common before moulting.
A healthy tarantula may also fast for other reasons.
Do not repeatedly add prey to an enclosure simply because the spider refuses to eat.
Remove uneaten prey.
Moulting
Before moulting, an Indian Ornamental may:
- refuse food
- remain hidden
- become less active
- increase webbing
- seal part of its retreat
- show changes in colouration
Leave the spider undisturbed.
Tarantulas frequently lie on their backs while moulting.
This is normal.
Never attempt to turn over a moulting tarantula.
After Moulting
The new exoskeleton is initially extremely soft.
The fangs also require time to harden.
As a general guide, wait approximately:
5–7 days for smaller juveniles
and
7–14 days for larger specimens
before feeding.
Large adults may require longer.
Wait until the fangs are dark and hardened.
Rehousing
Rehousing is one of the situations requiring particular care with Poecilotheria.
Prepare everything before opening the existing enclosure.
Before Rehousing
- Prepare and secure the new enclosure.
- Work in an enclosed room.
- Close windows and doors.
- Block obvious escape routes.
- Remove pets and unnecessary people.
- Prepare appropriately sized catch cups.
- Have long tools available.
- Plan how the spider will be transferred.
Whenever possible, encourage the spider into a secure container rather than attempting an exposed enclosure-to-enclosure transfer.
Remain calm if the spider bolts.
Do not attempt to grab it.
Cleaning and Maintenance
Routine maintenance should be minimally invasive.
Generally this involves:
- changing water
- cleaning the water dish
- removing feeder remains
- spot-cleaning waste
- addressing mould if it develops
There is usually no reason to completely replace substrate on a fixed schedule.
Avoid destroying established retreats and webbing unnecessarily.
Social Housing
For routine husbandry:
House individually.
There are reports of Poecilotheria being maintained in communal arrangements under specialist conditions, but this does not eliminate the risk of:
- cannibalism
- injury
- food competition
- stress
- unexpected losses
Communal housing is not recommended as standard care.
Sexing
Examining a moult is the most reliable method of determining sex before maturity.
Females can be identified through the presence and structure of the spermathecae in a suitable intact exuvia.
Mature males develop:
- emboli on the pedipalps
- more elongated proportions
- a noticeably leggier appearance
Ventral sexing can sometimes provide an indication but should not be considered as reliable as examination of a moult.
Breeding
Breeding P. regalis should be attempted only by experienced tarantula keepers.
The male should be introduced carefully to the female’s enclosure.
Courtship involves vibrational communication and tapping.
The male attempts to approach the female and transfer sperm using his pedipalps.
Females can attack or kill males.
Breeding introductions should therefore be supervised and an escape route for the male should be considered.
Egg Sac
Following successful mating, a female may eventually construct an egg sac inside her retreat.
Environmental stability and minimal disturbance are particularly important during this period.
Clutch size can vary considerably.
Anyone considering breeding should have suitable accommodation and prospective homes for potentially large numbers of spiderlings.
Spiderling Care
Spiderlings can be maintained individually in appropriately sized secure containers.
Provide:
- suitable ventilation
- substrate
- a small vertical retreat
- webbing anchor points
- appropriate moisture
Suitable foods include:
- tiny roach nymphs
- small crickets
- flightless fruit flies for very small specimens
- sections of appropriately sized pre-killed prey
Upgrade the enclosure as the spider grows.
Health
Common husbandry-related concerns include:
- dehydration
- excessive moisture
- poor ventilation
- overheating
- injuries
- failed or problematic moults
- feeder-related injuries
Good enclosure design prevents many of these problems.
Dehydration
Potential signs include:
- a noticeably shrunken abdomen
- lethargy
- abnormal posture
- reduced coordination
Fresh drinking water should always be available.
Seriously compromised specimens should receive advice from an appropriately experienced exotic or invertebrate veterinarian where available.
Fall Injuries
Although arboreal tarantulas are naturally capable climbers, falls inside poorly designed enclosures can still cause injury.
Avoid:
- sharp decorations
- unstable rocks
- exposed hard objects
- unnecessarily large empty spaces
Secure all heavy furnishings.
Quarantine
New specimens should initially be kept separately from established animals.
Monitor for:
- mites
- abnormal behaviour
- unexplained weakness
- fungal growth
- unusual mortality
Separate tools are useful where practical.
Captive-bred animals from reputable breeders reduce many of the concerns associated with poorly documented wild-caught animals.
Conservation and Trade
The genus Poecilotheria is subject to international trade controls.
All Poecilotheria species are listed under:
CITES Appendix II
International movement may therefore require appropriate documentation and permits depending on the circumstances.
Keep accurate acquisition and breeding records.
Whenever possible, obtain genuinely captive-bred animals from reputable breeders.
Never release captive tarantulas into the wild.
Suitability as a Pet
Advantages
- spectacular appearance
- large adult size
- fascinating arboreal behaviour
- impressive feeding response
- extensive use of retreats and webbing
- relatively robust when correctly maintained
- long-lived females
Considerations
- extremely fast
- medically significant venom
- capable of defensive biting
- unsuitable for handling
- requires careful rehousing
- not recommended for beginners
- CITES-regulated international trade
Poecilotheria regalis is best suited to a keeper who already has experience managing fast tarantulas and understands how to work safely around Old World species.
Responsible Ownership
Before acquiring an Indian Ornamental:
- research the species thoroughly
- check current legislation
- understand applicable CITES requirements
- prepare the enclosure in advance
- purchase captive-bred stock wherever possible
- retain proof of lawful acquisition
- ensure the enclosure is escape-proof
- make sure household members understand the risks
The spider should never be purchased simply because it is visually impressive.
The keeper must be prepared to manage it safely throughout its potentially long lifespan.
Summary
The Indian Ornamental Tarantula is a spectacular arboreal Old World species that combines large adult size with intricate patterning and fascinating natural behaviour.
Successful husbandry requires:
- a secure vertical enclosure
- a substantial arboreal retreat
- appropriate climbing surfaces
- good ventilation
- moderate substrate moisture
- continuous access to fresh water
- appropriately sized feeder insects
- minimal unnecessary disturbance
- careful transfer procedures
- individual housing
- no routine handling
For experienced keepers capable of respecting its speed and defensive capabilities, Poecilotheria regalis can be an exceptional display tarantula.
It is not, however, an appropriate species for inexperienced keepers or anyone seeking a tarantula that can be handled.
IMPORTANT INFORMATION
This care sheet provides general husbandry guidance and does not replace species-specific research or veterinary advice. Individual requirements may vary.
If you have concerns about an animal’s health or care, consult a suitably experienced exotic or invertebrate veterinarian.
Information correct at the date of publication.
reptilecommunity.com | Revised: August 2026