Orange Baboon Tarantula
Pterinochilus murinus
The Orange Demon of Africa (OBT). Arguably the most terrifying, aggressive, and lightning-fast tarantula kept in the worldwide hobby. It flaunts a hypnotic, fluorescent orange hue, but delivers a clinically significant bite that causes excruciating, radiating muscle cramps. It constructs monstrously massive tubular web castles and will attack (while loudly hissing) absolutely anything that gets near—even spilled water.
Environnement
Terrestre
Humidité
40 - 60 %
Température diurne
24 - 29 °C
Température nocturne
20 - 24 °C
Description de l'espèce
Geographical Origin and Habitat: Arid scrublands, dry savannas, and harsh desert-bordering plains of Eastern and Southern Africa (Angola, Zambia, Zimbabwe). A brutal survivor of the dark continent, uniquely adapted to thrive in punishing, bone-dry climates by cunningly hiding in deeply excavated burrows underneath the massive root systems of acacia bushes or fallen timber.
Taxonomy and Genetics: Theraphosidae family. It belongs to the deeply feared group of 'Old World' tarantulas (Africa/Asia). Unlike their slower, milder American (New World) cousins, it DOES NOT possess urticating (itching) hairs to flick at predators. To compensate evolutionarily, nature gifted it with explosive blind aggression, massive one-inch (2 cm) fangs, and a highly potent neurotoxic venom capable of dropping large rodents, snakes, and heavily deterring hungry baboons from digging it up.
Behavior and Habits: PURE NEUROSIS AND SPEED. Infamously renamed in the hobby community as the 'OBT' (Orange Bitey Thing). It is definitively the most irascible spider on the market. If you merely touch or breathe on the lid of its enclosure, it will not flee; instead, it rears straight up backward into a threat posture (showing huge black fangs), emits a hollow hissing sound (Stridulation) by rubbing its front legs together, and then launches itself into a blindingly fast, teleport-like strike, biting feeding tongs, gloves, or the glass wall repeatedly.
Morphology: Medium-sized, reaching a 5.5 to 6-inch (13-15 cm) leg span. Its coloration (in the highly sought-after RCF - Red Color Form) is a blindingly bright, almost radioactive neon orange, featuring a dark, starburst-shaped carapace marking carved in deep ebony black. The legs are thick and densely haired. Females are stocky and live up to 15 years; males, incredibly spindly, long-legged, and faded in color, completely stop eating and die aimlessly wandering about 6 months after their ultimate 'hooking out' maturity molt (living roughly 3 years max).
Soins, reproduction et cohabitation
Terrarium Setup: AN ARID WEB FORTRESS. It is a semi-fossorial / opportunistic heavy webber that produces pounds of the strongest, thickest silk in nature. It must be housed in a secure enclosure (at least 12x12 inches / 30x30 cm floor space) packed with at least 6 inches (15 cm) of bone-dry coco peat and an angled cork bark slab. Within 48 hours, it will completely fill the entire upper volume of the tank with suspended galleries of dense, opaque, blindingly white webbing, creating dozens of funnel-shaped tunnels connecting to an underground lair.
Lighting and Heating: Intensely photophobic (hates bright light). Requires medium-high ambient room temperatures, around 78-82°F (25-28°C) for optimal lightning-fast metabolism, dropping to 72°F (22°C) at night, provided exclusively by a space heater or a very weak side-mounted heat mat. NEVER use heat lamps or focal lights: they do not bask to thermoregulate, and the merciless heat/light combo will force the stressed spider to bury itself alive, sealing its burrow with thick web to die of desiccation.
Humidity and Hydration: EXTREME ARIDITY AND WATER BOWL WARS. You must never mist or spray a baboon spider enclosure. They suffer lethally from high humidity and the stuffy, stagnant air of tropical setups, quickly dying from parasitic mite infestations in their book-lungs. Keep the substrate desert-dry. Provide only a wide, shallow water dish kept ALWAYS full of fresh water. BUT BE WARNED: the furious OBT will often literally attack the water as you pour it in (splashing itself), or aggressively fill the bowl with dirt and thick webbing purely out of spite, forcing you to fight it to retrieve and clean the bowl using 12-inch metal tweezers.
Feeding and Supplementation: INSATIABLE KILLING MACHINE. It hunts absolutely anything vibrating the trip-wires of its web fortress with unprecedented violence (often called 'teleporting'). Large crickets, massive locusts, and roaches (Dubia, Red Runner) will be snatched and violently dragged kicking into the dark silk funnels in a fraction of a second, to be liquefied with digestive venom and sucked dry (Exo-digestion). Offer a heavy meal once or twice a week.
Compatibility: Monstrously territorial and utterly intolerant. Strictly housed singly. Males attempting to approach a female's web castle for breeding risk their lives with every step, and in 90% of cases are brutally ambushed and devoured alive at the first miscalculation of the matriarch's giant web.
Health and Common Diseases: Venomous Bite (Extreme Danger to Keeper!): Its venom is a pure, violent neurotoxin. While not medically lethal to a healthy human adult without allergies, a bite causes inhumane, radiating, throbbing pain lasting for days, severe high fevers, massive localized swelling, and severe muscle cramps radiating to the chest and heart (African Tarantism Syndrome). Fatal Dehydration in Slings: tiny spiderlings would die in the actual desert; in the terrarium, their microscopic book-lungs require one corner of the dirt to be kept slightly damp with a few drops to drink, but too much moisture will cause their delicate legs to rot off.
Origine et répartition géographiques
Arid scrublands, dry savannas, and harsh desert-bordering plains of Eastern and Southern Africa (Angola, Zambia, Zimbabwe). A brutal survivor of the dark continent, uniquely adapted to thrive in punishing, bone-dry climates by cunningly hiding in deeply excavated burrows underneath the massive root systems of acacia bushes or fallen timber.
Origine
Sélection et cultivarsAfrique et MadagascarCosmopolite ou introduit
Profil d'invertébré terrestre
- Régime alimentaire
- Carnivore
- The diet of Pterinochilus murinus must be carefully managed to ensure optimal health and longevity. In its natural habitat, Pterinochilus murinus typically consumes a variety of specific prey items or plant matter. Captive specimens require a similarly balanced intake, often supplemented with essential vitamins and calcium. It is important to offer food that is appropriately sized to avoid choking or digestive issues. Regular monitoring of their feeding response helps in identifying any potential health problems early.
- Taille adulte
- 15 cm
- Mode de vie/microhabitat
- Terrestrial
- The lifestyle of Pterinochilus murinus varies greatly depending on whether they are terrestrial, arboreal, aquatic, or semi-aquatic. Designing an enclosure that accommodates their specific mode of living is essential for their physical and mental health. This includes providing the right substrate, climbing branches, or water features as needed. A proper setup allows Pterinochilus murinus to exercise, hide, and thermoregulate effectively. Understanding their lifestyle choices helps in creating a thriving captive environment.
- Cycle d'activité
- Nocturnal
- The activity pattern of Pterinochilus murinus typically dictates when they feed, explore, and rest. Depending on their biology, they may be predominantly active during the day, night, or twilight hours. Replicating appropriate lighting and temperature cycles is crucial for maintaining their natural rhythm. Disruptions to this schedule can lead to stress and a decline in the health of Pterinochilus murinus. Keepers should try to interact with them during their most active periods to minimize disturbance.
- Sociabilité
- Solitary
- They are highly aggressive and strictly solitary. Attempting to house multiple individuals together will inevitably result in a fight to the death and cannibalism. They must be housed individually from a very early age in secure enclosures to prevent escapes and deadly encounters.
- Reproduction
- Oviparous
- Reproduction in Pterinochilus murinus requires specific environmental triggers such as temperature and humidity changes. Breeding these animals in captivity can be challenging and often demands a dedicated setup. Once successful mating occurs, careful attention must be given to the incubation of eggs or the care of live young. The offspring of Pterinochilus murinus are usually fragile and require highly specific conditions to thrive. Keepers must thoroughly research their reproductive cycle to achieve positive breeding results.
- Venimeux
- Yes
- Tolérance aux manipulations
- Display only
- Handling Pterinochilus murinus requires patience, care, and an understanding of their tolerance for human interaction. While some individuals may become accustomed to being held, others might find it highly stressful. It is important to support their body correctly and avoid making sudden movements that could startle them. Always wash your hands before and after interacting with Pterinochilus murinus to prevent the spread of pathogens. Limit handling sessions to short periods to minimize any negative impact on their well-being.
- Brumation
- Non requise
- Brumation in Pterinochilus murinus is a natural period of dormancy that often corresponds with cooler seasonal temperatures. During this time, they may significantly reduce their food intake and become far less active. It is crucial to monitor their weight and overall health leading up to and during this phase. Keepers must adjust the temperature and lighting to safely guide Pterinochilus murinus through brumation if required by their species. Proper management of this cycle is vital for their long-term health and reproductive success.
- Mue
- Regular
- The molting or shedding process for Pterinochilus murinus is a critical time for growth and renewal. Adequate humidity levels are absolutely necessary to ensure that the old skin or exoskeleton comes off cleanly. Problems during molting can lead to retained shed, which might cause serious health issues or constrict blood flow. Keepers should avoid handling Pterinochilus murinus during this vulnerable period to prevent undue stress or injury. Providing appropriate rough surfaces in the enclosure can also assist them in removing the old shed.
Galerie d'images
Images sous licence liées à l'espèce ou, lorsqu'elles sont indiquées, au taxon représentatif le plus proche.

































































