Breeding Notes
Lampropelma nigerrimum
Sangihe Island Black
Also known as: Lampropelma nigerrimum tarantula
Species-specific breeding guidance, seasonal context and practical caveats for experienced keepers.
Species breeding reference
Breeding Notes
Breeding Lampropelma nigerrimum is definitely an advanced keeper’s challenge, combining all the quirks of Asian arboreals with the unpredictability of a rarely-bred species. There’s little firm guidance in the hobby, so anyone attempting this needs to rely on careful conditioning, lots of patience, and a willingness to learn as they go. Success appears to depend on a well-set-up, humid environment and ample preparation both for the spiders and the keeper. This isn’t an entry-level breeding project, but for those experienced with Asian arboreals, it’s a fascinating if unpredictable journey.
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
No fixed wild breeding season is confirmed for this species, but its tropical Sulawesi habitat suggests breeding could potentially happen year-round, though local rainy periods may encourage activity.
Wild Environmental Triggers
Sustained high humidity and warm temperatures, like those found during or after heavy rains in Indonesian rainforests, are likely triggers. Increased food availability and the onset of wet conditions may play a part.
Native Climate Context
The native climate of Sulawesi is tropical, hot, and humid throughout the year, with little temperature variation. The main shifts come with the changing wet and dry seasons, so breeding is probably linked to periods of higher humidity and food abundance.
Captive Breeding Window
There’s no firm captive breeding window—breeders often try pairing after a female’s fresh moult and a period of good feeding, ideally at the start or during a sustained spell of elevated humidity and warmth.
Pre-pairing Conditioning
Give females a few months of steady warmth (23–27°C) and increased humidity (up to 80%), alongside regular, generous feeding. This mimics natural conditions and helps plump her up ready for pairing. Avoid pairing immediately after a moult—give her a safe window to harden up and resume eating.
Male Introduction Guidance
Make sure the female is well fed and settled before introducing a mature male. Add plenty of web anchors or vertical décor so both spiders have space to retreat. Introduce the male in the evening when they’re naturally inclined to move about, and supervise closely as females can be unpredictable with their reception. Have a barrier or escape plan ready if things turn sour.
Female Readiness Signs
Signs the female may be receptive include steady feeding, active webbing, and a robust look post-moult. If she’s reclusive or defensive, she might not be ready—better to wait than risk a disastrous encounter.
Post-pairing Conditions
Continue with high humidity and steady heat, reducing any disturbances. Keep her well fed to limit aggression towards any remaining male and to support possible egg sac production. Good ventilation is still key even as you maintain moist conditions.
Sac Timeline
Precise timelines are lacking for this species, but going by close relatives, an egg sac may appear 2–3 months after pairing. Some variability is normal; patience is required.
Incubation Notes
The sac should be left with the mother in her retreat, undisturbed, as long as she isn’t agitated or at risk of eating it. If artificial incubation is needed, aim to maintain warmth (around 25–27°C) and steady humidity, with gentle airflow. Don’t over-mist—a mouldy sac is a sad day for everyone.
Expected Sling Count
No published clutch averages, but related arboreal Asian species often produce sacs containing 50–150 spiderlings. Treat these numbers as a general guide rather than a promise.
Risks and Cautions
Females can be aggressive towards males, so never leave a pair unsupervised for long. Stress or incorrect conditions can lead to failed pairings or sac eating. This species can be nervous and isn’t forgiving of rough handling or unstable environments. Given the caution needed, this isn’t a project for beginners or those in a hurry.
Evidence confidence: Low
