Breeding Notes
Pterinochilus murinus BCF Tete
Tete Orange Baboon Tarantula
Also known as: Orange Baboon Tarantula (Tete form), O.B.T. (Tete form)
Species-specific breeding guidance, seasonal context and practical caveats for experienced keepers.
Species breeding reference
Breeding Notes
Breeding the Tete OBT isn’t for the casual keeper, as wild temperaments and regional quirks can make the process risky and unpredictable. If you’re going to try, focus on replicating the subtle seasonal shifts of their savannah home rather than going for heavy-handed changes. There’s no universal recipe; patience, observation, and more than a bit of caution are your best assets. Aim to make things feel like the start of the rainy season, keep a close eye on your pair, and be ready for everything from a quick romance to a dramatic breakup. Not the easiest, but no doubt rewarding for those with the time, experience, and courage to give it a proper go.
Breeding information for this species is a bit thin on the ground, so this guidance is based on the best available reports, native climate clues, and sensible keeper caution.
Wild Breeding Season
Wild breeding appears to line up with the region’s rainy season, typically spring into early summer when conditions shift from dry to more humid and prey is plentiful.
Wild Environmental Triggers
The start of seasonal rains and a gentle rise in humidity likely get these tarantulas in the mood, along with an upswing in temperatures after the drier months.
Native Climate Context
Native to the Tete region in Mozambique, this species comes from a landscape of hot, dry savannah broken up by bursts of rain and cooler periods overnight. Seasonal shifts rather than constant heat or humidity are the big cues here.
Captive Breeding Window
Best to attempt pairing toward the start of spring as room temps rise and after a light increase in humidity, imitating transitional weather—don’t go overboard, as these spiders don’t like things too soggy.
Pre-pairing Conditioning
Feed both male and female well for several weeks, and ensure the female has finished her last pre-molt and is not still looking swollen from a recent meal. A slightly drier and cooler period beforehand may help, followed by a bump in moisture a week prior to introduction.
Male Introduction Guidance
Introduce the male in the evening, ideally when the female is well-fed and calm. Give him a safe path to her webbed area and keep an eye out—use a barrier if needed, as these are not known for patience or tolerance. Be ready to separate at a moment’s notice as they can be feisty with each other.
Female Readiness Signs
A receptive female usually hangs around her burrow entrance, appearing less defensive and more active once the seasonal change is triggered. Webbing near the entrance or a more visible presence away from her secure spot can be a hint, but always approach with caution.
Post-pairing Conditions
If a successful pairing occurs, keep the enclosure stable and resist the urge to ramp up humidity or food drastically—too much stress or change can spook the female into eating the male or abandoning egg sac plans. Maintain calm, stable conditions.
Sac Timeline
Exact timing varies wildly, but producing a sac anywhere from 4–10 weeks after pairing seems typical with close relatives. Don’t disturb the enclosure too much and keep a close eye out for signs of sac-building.
Incubation Notes
Leave the sac with the female until you see slings starting to move about, or after about 4–6 weeks if you have to pull it. Keep it dry and well-ventilated with only minimal moisture, matching the dry-side conditions these spiders favour.
Expected Sling Count
Sac size can be all over the shop, from 50 to over 150 spiderlings, but this is inferred from genus trends—don’t hang your hat on an exact number.
Risks and Cautions
Pairings are nerve-wracking and not for the faint-hearted—males can be dispatched swiftly by a grumpy female. Stress, overfeeding, or wrong conditions can scupper your chances. Don’t expect reliable results every time, and never let your guard down when working with adult Pterinochilus. Definitely not a beginner’s project.
Evidence confidence: Low
