Stromatopelma Calceatum - Featherleg Tarantula (Sling)

Stromatopelma calceatum (Featherleg Baboon Tarantula)

The Featherleg Baboon Tarantula is an iconic old-world arboreal species reserved for experienced keepers. Known for its ghostly white leg striping, lightning speed, and highly defensive temperament, Stromatopelma calceatum offers an actual high-risk, high-reward keeping experience.

This species builds dense web tunnels high in its enclosure and prefers to remain hidden until nightfall. When feeding, it delivers explosive ambush strikes, making it a thrilling—if nerve-wracking—addition to an advanced collection. Hardy once established, it rewards confident keepers who respect its speed and venom.

Best for: Serious tarantula enthusiasts and collectors

Experience Level

⚠️ Advanced / Expert Only

This species is extremely fast, highly defensive, and venomous. Not suitable for beginners or casual keepers. Strictly a look-don't-touch tarantula.

Enclosure & Setup

A true arboreal species that requires vertical space and absolute enclosure security.

• Tall, well-ventilated arboreal enclosure

• Secure, escape-proof design is critical

• Vertical cork bark tube or deep hide (essential)

• Plenty of anchor points for webbing

Substrate

Substrate helps regulate humidity but is not used for burrowing.

• Depth: ±5–7 cm (2–3 inches)

• Slightly moist, never wet

• Add leaf litter or moss to retain humidity

Temperature & Humidity

Stable conditions are key for long-term success.

• Temperature: 23–27°C (74–80°F)

• Humidity: 65–75%

• Light misting only—avoid soaking

• Good airflow to prevent stagnant moisture

Feeding

An aggressive, ambush-style feeder with lightning-fast strikes.

• Diet: Crickets, roaches, mealworms, occasional locusts

• Spiderlings: Feed 2–3× per week

• Juveniles: Weekly

• Adults: Every 7–10 days

Temperament & Handling

Not a handling species under any circumstances.

• Extremely fast and defensive

• Medically significant old-world venom

• Will bolt or strike when disturbed

• Maintenance should be planned and minimal

Behaviour & Visibility

Primarily nocturnal and reclusive.

• Builds dense web tunnels and elevated hideouts

• Often hidden during the day

• Most visible during feeding or late-night activity

Lifespan & Size

• Adult size: 12–15 cm (5–6 inches) leg span

• Females: 10–15 years

• Males: 3–5 years

Important Care Notes

• Always assume escape attempts during maintenance

• Use long tools and work calmly

• Never open an enclosure without a plan

• Best left undisturbed once settled

Photo Credit: Simon Tonge, CC0, via Wikimedia Commons