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Stromatopelma calceatum
🔤 Taxonomy
Stromatopelma calceatum is the currently accepted name for the featherleg baboon tarantula covered here. The Latin name is more reliable than common-name variants, especially because “baboon spider” is used broadly for unrelated African theraphosids.
Names used in the hobby:
- featherleg baboon
- featherleg baboon tarantula
- Federbein-Baboon-Vogelspinne
📌 Description
Stromatopelma calceatum is a fast West African arboreal tarantula that uses bark retreats, hollow wood, and heavy webbing. Adults are usually around 14-18 cm in legspan. Females may live for many years with stable care; mature males are slimmer and short-lived after maturity.
This is an expert display species, not a handling animal. The practical challenge is not keeping the spider alive in a box; it is servicing a vertical, webbed enclosure without provoking a bolt, fall, or bite. Long tools, a catch cup, and a closed work area are part of normal care.
Care should be built around a secure retreat, usable warmth, clean water, ventilated humidity, and access points that do not require dismantling the webbed hide. Display visibility is secondary to maintenance safety.
Do not let a calm week change the risk plan. A normally hidden spider can still move suddenly during watering or rehousing. Record feeding dates, molts, water changes, cleaning, temperatures, and body condition so changes are judged against a real baseline.
☠️ Venom
This species is venomous and should be managed as a no-contact tarantula. Bites can cause strong local pain and may cause swelling, cramps, nausea, dizziness, or other individual reactions. Because this is a fast Old World arboreal species, routine handling is irresponsible even when the animal appears settled.
Use long tools, a catch cup, and a planned work area for maintenance. During rehousing, move the retreat into a larger container when possible or guide the spider through a tube. Do not chase a fast arboreal tarantula around an open room.
🌍 Distribution
Stromatopelma calceatum is associated with West African forest and forest-edge records. Hobby material often uses country names loosely, so keep origin claims attached to seller or breeder records rather than treating a common name as locality proof.
In captivity, translate that background into practical design:
- secure vertical cover before open display space
- a warm area and a cooler retreat
- moisture that is available but ventilated
- fresh water that can be changed without tearing apart the webbing
- cork, bark, and branches that support normal arboreal retreat use
Use the range as context, not as a weather script. Wild tarantulas hide in buffered microclimates, so the enclosure should offer choices rather than constant spraying or one fixed condition.
⚖️ Legal status
The structured metadata for this article records Stromatopelma calceatum as not currently listed under CITES and not listed in a species-specific EU wildlife-trade annex entry, based on the legal check kept with the article. It is also outside the Bern Convention because it is not a European native species.
That does not make trade or ownership automatically unrestricted. Local rules can still cover import, sale, breeding, exhibition, transport, animal welfare, and dangerous-animal registration. Keep the seller or breeder name, purchase date, advertised origin, sexing notes, molt history when known, and any import or transfer paperwork.
🤌 Husbandry
Keep one animal per enclosure. This species is not a beginner communal project, and forced cohabitation turns routine feeding or cleaning into an unnecessary risk.
Start spiderlings in small secure containers where prey can be found easily and hydration can be checked without flooding the setup. Move them up gradually. Oversized enclosures with hidden feeders are not safer for small spiderlings, especially when the keeper cannot see molts or leftover prey.
An adult should have a vertical enclosure around 30 x 30 x 45 cm or larger, with a cork tube or broad bark slab that reaches close to the lid. More height and anchor structure are useful only when the door, vents, and service routine are secure.
Before the animal arrives, test every lid, vent, cable opening, sliding door, and feeding port. Place water and removable waste areas where they can be reached with minimal opening. The enclosure should let routine work happen without tearing apart the primary retreat.
💡 Lighting
Normal room lighting is enough. UVB is not required, and bright basking lamps are more likely to dry or overheat the enclosure than to improve care. A regular day-night rhythm helps observation and feeding routines.
Quarantine new arrivals in a simple, secure setup before moving them into a finished display enclosure. During quarantine, watch hydration, posture, mite load, waste, injuries, feeding response, and whether the spider can retreat without being trapped in a wet corner.
🌡 Heating and temperature
A practical warm-room range is about 24-28 °C by day with a small night drop if the room naturally cools. Short periods a little below this are usually less dangerous than overheating a sealed enclosure.
Measure where the animal actually lives: near the retreat, at the open side, and near the water or damp area. Heat mats on the floor are poor choices for retreat-using tarantulas because they can heat the escape route. If additional heat is needed, warm the room or one side of the enclosure gently and leave a cooler retreat.
Change one variable at a time. Repeated spraying, extra heat, and repeated feeding attempts can create a cycle of disturbance where the spider never settles.
💧 Humidity and water
Keep the enclosure moderately humid, but never sealed and wet. Overflow the water dish or dampen one lower corner when needed, then allow exposed surfaces to dry while the retreat stays slightly more humid.
Water should be available at all times in a shallow stable dish. Spiderlings can use a very small dish, dampened substrate patch, or carefully managed water source, but they should not be left in a dry container simply because they are small.
Ventilation is part of humidity control. If the enclosure smells sour, stays wet for days, grows heavy mold, or has condensation that never clears, reduce water input and improve air exchange before blaming the species.
🌿 Enclosure and decoration
Decoration should solve husbandry problems. Useful decor creates retreats, climbing structure, web anchors, shaded routes, and a protected path to water. Decorative clutter that blocks access is a liability.
Use cork tubes, bark slabs, branches, leaf litter, and firm substrate in a way that supports the species’ arboreal retreat style. Do not repeatedly destroy functional webbing just to make the enclosure look tidy. Remove moldy food remains, dead feeders, and soaked waste, but leave clean working structure alone.
Arrange the enclosure so the first movement after opening is toward cover, not toward the room. This single design choice prevents many avoidable escapes.
🪳 Feeding
Feed appropriately sized crickets, roaches, locusts, and other safe feeder insects. Prey should usually be no larger than the spider’s abdomen or body length, and it should be removed if not eaten. Never leave live prey with a tarantula that is in premolt, freshly molted, weak, or trapped in a retreat.
Adults often do well with one suitable feeder every 7-14 days, adjusted by body condition. Slings need smaller prey more often, but they also need uneaten prey removed before it damages the spider during a molt.
Refusal is not automatically a problem. Check recent molts, abdominal condition, temperature, disturbance, prey size, and whether the animal can drink. Weight loss, a shriveled abdomen, abnormal posture, or repeated failed molts are more important warning signs than a single missed meal.
🥚 Breeding
Breeding should be planned only when both animals are mature, healthy, correctly identified, and kept with clear origin records. Pairing should not be improvised in the display enclosure.
Prepare catch cups, separation tools, and a clear route for removing the male before introducing the animals. Offspring housing, feeder production, and placement plans should be ready before a sac is produced. Do not mix uncertain localities or similar species just because a pair is available.
🩺 Common problems
The main preventable problems are the combination of speed, vertical escape routes, medically relevant bite potential, and fall risk during rehousing. Most of them are enclosure-access problems: the keeper cannot water, feed, or clean without opening too much of the setup or disturbing the retreat.
If something looks wrong, first verify temperature, hydration, ventilation, water access, prey size, retreat fit, recent disturbance, and molt timing. Serious trauma, leaking hemolymph, persistent abnormal posture, breathing difficulty, or a trapped molt needs experienced exotic-veterinary advice when available.
Establish a baseline during the first months: normal posture, preferred retreat, drinking, feeding response, waste location, and reaction to maintenance. Later changes are easier to interpret when you know what normal looked like for that individual.
📌 Conclusion
Stromatopelma calceatum is kept best by experienced keepers who enjoy no-contact display species and can design the enclosure around security, retreat use, clean water, ventilation, and calm maintenance.
The most common failure is buying the spider first and solving access later. Build the adult plan before the animal outgrows the juvenile tub, keep plain records, and treat every water change as a small escape-prevention exercise.